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第 1 条，共 239 条 |
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标题: A level set method with shape priors by using locality preserving projections |
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作者: Wang, B (Wang, Bin); Gao, XB (Gao, Xinbo); Li, J (Li, Jie); Li, XL (Li, Xuelong); Tao, DC (Tao, Dacheng) |
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来源出版物: NEUROCOMPUTING 卷: 170 页: 188-200 DOI: 10.1016/j.neucom.2014.07.086 出版年: DEC 25 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 15 |
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使用次数 (2013 年至今): 22 |
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摘要: A novel level set method (LSM) with the constraint of shape priors is proposed to implement a selective image segmentation. Firstly, the shape priors are aligned by using image moment to deprive the spatial related information. Secondly, the aligned shape priors are projected into the subspace expanded by using locality preserving projection to measure the similarity between the shapes. Finally, a new energy functional is built by combing data-driven and shape-driven energy items to implement a selective image segmentation method. We assess the proposed method and some representative LSMs on the synthetic, medical and natural images, the results suggest that the proposed one is superior to the pure data-driven LSMs and the representative LSMs with shape priors. (C) 2015 Elsevier B.V. All rights reserved. |
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入藏号: WOS:000361256000019 |
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语种: English |
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文献类型: Article; Proceedings Paper |
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会议名称: International Conference on Intelligent Science and Intelligent Data Engineering (IScIDE) |
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会议日期: JUL 31-AUG 02, 2013 |
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会议地点: Beijing, PEOPLES R CHINA |
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作者关键词: Selective image segmentation; Active contour; Level set method; Shape priors; Locality preserving projections |
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KeyWords Plus: GEODESIC ACTIVE CONTOURS; IMAGE SEGMENTATION; EVOLUTION; EDGES; FLOW |
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地址: [Wang, Bin; Gao, Xinbo; Li, Jie] Xidian Univ, Sch Elect Engn, Xian 710071, Shaanxi, Peoples R China. |
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通讯作者地址: Wang, B (通讯作者),Xidian Univ, Sch Elect Engn, Xian 710071, Shaanxi, Peoples R China. |
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作者识别号: |
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出版商: ELSEVIER SCIENCE BV |
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出版商地址: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
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Web of Science 类别: Computer Science, Artificial Intelligence |
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研究方向: Computer Science |
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IDS 号: CR3TM |
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ISSN: 0925-2312 |
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eISSN: 1872-8286 |
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29 字符的来源出版物名称缩写: NEUROCOMPUTING |
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ISO 来源出版物缩写: Neurocomputing |
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来源出版物页码计数: 13 |
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第 2 条，共 239 条 |
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标题: Generation and three-dimensional characterization of complex nondiffracting optical beams |
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作者: Yu, XH (Yu Xiang-Hua); Yao, BL (Yao Bao-Li); Lei, M (Lei Ming); Yan, SH (Yan Shao-Hui); Yang, YL (Yang Yan-Long); Li, RZ (Li Run-Ze); Cai, YN (Cai Ya-Nan) |
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来源出版物: ACTA PHYSICA SINICA 卷: 64 期: 24 文献号: 244203 DOI: 10.7498/aps.64.244203 出版年: DEC 20 2015 |
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Web of Science 核心合集中的 "被引频次": 1 |
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被引频次合计: 1 |
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使用次数 (最近 180 天): 5 |
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使用次数 (2013 年至今): 5 |
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摘要: Nondiffracting optical beams play an important role in contemporary optics due to their special propagation characteristics, i.e., nondiffracting in a diffraction-free zone, shape recovering behind obstacles or self-healing property. Liquid crystal spatial light modulators (LC-SLM) are widely used for generating nondiffracting optical beams in virtue of programmable and dynamic features. In this paper, we propose a complex amplitude modulation technique that can encode any scalar complex fields for generating the complex nondiffracting beams. Before experiment, the phase modulation curve of the phase-only LC-SLM is optimized into being linear in a range of 0-2 pi by gamma correction in the way of variable binary phase gratings. Then, we experimentally generate the nonaccelerating beams, e.g., two zero-order Bessel beams with variable intensity distributions, and the nondiffracting petal-like beams generated by interfering with two coaxial Bessel beams. By scanning a reflection mirror near the focal region along the optical axis, a stack of two-dimensional images is acquired, and then a three-dimensional intensity profile of the beam is reconstructed with a software. We also experimentally demonstrate a new kind of multi-main-lobe accelerating beam with parabolic accelerating trajectory by modifying the spatial spectrum of classical Airy beam. Compared with the so-called vectorial accelerating beam with multiple main lobes in spheroidal coordinates, our generated two-main-lobe accelerating beam has a very high energy efficiency. The self-healing property of the two-main-lobe accelerating beam is also demonstrated. The presented technique can generate a variety of complex nondiffracting optical beams rapidly and obtain their three-dimensional intensity distributions accurately, which has potential applications in the fields of optical microscope, optical date storage, optical trapping, optical micromachining, etc. |
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入藏号: WOS:000368828600024 |
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语种: Chinese |
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文献类型: Article |
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作者关键词: modulation of complex amplitude; nondiffracting optical beams; 3D reconstruction of optical beams |
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KeyWords Plus: SPATIAL LIGHT MODULATORS; AIRY BEAMS; AMPLITUDE; FIELDS; MANIPULATION; TRAPS; LASER |
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地址: [Yu Xiang-Hua; Yao Bao-Li; Lei Ming; Yan Shao-Hui; Yang Yan-Long; Li Run-Ze; Cai Ya-Nan] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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通讯作者地址: Yao, BL (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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电子邮件地址: yaobl@opt.ac.cn |
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出版商: CHINESE PHYSICAL SOC |
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出版商地址: P O BOX 603, BEIJING 100080, PEOPLES R CHINA |
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Web of Science 类别: Physics, Multidisciplinary |
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研究方向: Physics |
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IDS 号: DB9IC |
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ISSN: 1000-3290 |
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29 字符的来源出版物名称缩写: ACTA PHYS SIN-CH ED |
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ISO 来源出版物缩写: Acta Phys. Sin. |
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来源出版物页码计数: 8 |
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基金资助致谢: |
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Project supported by the National Basic Research Program of China (Grant No. 2012CB921900) and the National Natural Science Foundation of China (Grant Nos. 81427802, 61275193). |
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第 3 条，共 239 条 |
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标题: Hydrothermal synthesis of TiO2 nanostructure films and their photoelectrochemical properties |
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作者: Miao, H (Miao, Hui); Hu, XY (Hu, Xiaoyun); Fan, J (Fan, Jun); Li, CB (Li, Chaoben); Sun, Q (Sun, Qian); Hao, YY (Hao, Yuanyuan); Zhang, GW (Zhang, Guowei); Bai, JT (Bai, Jintao); Hou, X (Hou, Xun) |
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来源出版物: APPLIED SURFACE SCIENCE 卷: 358 页: 418-424 DOI: 10.1016/j.apsusc.2015.08.212 子辑: A 出版年: DEC 15 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 31 |
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使用次数 (2013 年至今): 31 |
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摘要: In this study, anatase TiO2 nanostructured films were successfully prepared via Ti foil-assisted hydrothermal synthesis method without any surfactants. With the increase of hydrothermal time from 3 to 12 h, the surface morphologies of the films changed from nanotubes to nanoflowers and the thickness of the films increased from 2.5 to 4.2 mu m. The nanoflowers were seated on a layer of oriented nanotubes and consisted of nanosheets. Both nanotubes and nanosheets were multi-walled, comprising interconnected [TiO6] octahedra. Ti foil and acid-treated Ti foil both formed pieces of thin films on the surface with nanotubes and nanoflowers, respectively. Photoelectrochemistry tests showed that the photocurrent response of the nanotube film was nearly 13.8 mu A/cm(2), which was approximately three times higher than that of nanoflowers film. This indicates that the nanotubes more successfully transferred electrons to the surface of the film as a result of nanotubes providing direct pathways for electrons from the point of injection to the Ti foil electrode. The ultraviolet (UV)-visible-near infrared (NIR) absorption spectra indicated that the nanotube film had a narrower band gap as compared to the nanoflower film. In other words, a relatively low hydrothermal treatment temperature or relatively short hydrothermal treatment time is better for preparing excellent photocurrent response films. (C) 2015 Elsevier B.V. All rights reserved. |
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入藏号: WOS:000366220400052 |
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语种: English |
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文献类型: Article |
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作者关键词: TiO2; Nanostructure; Film; Photoelectrochemistry |
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KeyWords Plus: SENSITIZED SOLAR-CELLS; NANOTUBE ARRAYS; ANATASE TIO2; SURFACE; NANOWIRES; OXIDATION; RUTILE; WATER |
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地址: [Miao, Hui; Hu, Xiaoyun; Li, Chaoben; Sun, Qian; Hao, Yuanyuan; Zhang, Guowei; Bai, Jintao; Hou, Xun] NW Univ Xian, Sch Phys, Xian 710069, Peoples R China. |
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通讯作者地址: Hu, XY (通讯作者),NW Univ Xian, Sch Phys, Xian 710069, Peoples R China. |
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电子邮件地址: hxy3275@nwu.edu.cn; fanjun@nwu.edu.cn |
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出版商: ELSEVIER SCIENCE BV |
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出版商地址: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
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Web of Science 类别: Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter |
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研究方向: Chemistry; Materials Science; Physics |
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IDS 号: CY2EA |
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ISSN: 0169-4332 |
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eISSN: 1873-5584 |
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29 字符的来源出版物名称缩写: APPL SURF SCI |
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ISO 来源出版物缩写: Appl. Surf. Sci. |
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来源出版物页码计数: 7 |
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基金资助致谢: |
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This work has been supported by the National Natural Science Foundation of China (Grant Nos. 51372201, 21476183), the Shaanxi Provincial Natural Science Foundation (Grant No. 2015JM5159), and the Research Fund for the Doctoral Program of Higher Education (Grant No. 20136101110009). |
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第 4 条，共 239 条 |
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标题: Fraunhofer diffraction of Laguerre-Gaussian beam caused by a dynamic superposed dual-triangular aperture |
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作者: Li, XZ (Li, Xinzhong); Tai, YP (Tai, Yuping); Nie, ZG (Nie, Zhaogang); Wang, H (Wang, Hui); Li, HH (Li, Hehe); Wang, JG (Wang, Jingge); Tang, J (Tang, Jie); Wang, YS (Wang, Yishan) |
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来源出版物: OPTICAL ENGINEERING 卷: 54 期: 12 文献号: 123113 DOI: 10.1117/1.OE.54.12.123113 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 4 |
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使用次数 (2013 年至今): 4 |
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摘要: We investigate the Fraunhofer diffraction of a Laguerre-Gaussian (LG) beam incident on a dynamic superposed dual-triangular aperture. The evolution of the diffraction pattern from this aperture is analyzed experimentally and theoretically. A special aperture, called the hex-star triangular aperture, demonstrates interesting diffraction patterns. Further, the diffraction properties of integer, half-integer, and fractional orders of topological charges at the Fraunhofer zone are studied by using the hex-star triangular aperture. This study can provide additional information to enhance the understanding of the diffraction properties of the LG beam transmitted through a complex aperture. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) |
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入藏号: WOS:000368418300016 |
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语种: English |
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文献类型: Article |
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作者关键词: diffraction; optical vortices; Laguerre-Gaussian beam; dynamic aperture |
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KeyWords Plus: ORBITAL ANGULAR-MOMENTUM; OPTICAL VORTEX BEAM; TOPOLOGICAL CHARGE; VORTICES; PROPAGATION; GENERATION; BIRTH |
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地址: [Li, Xinzhong; Wang, Hui; Li, Hehe; Wang, Jingge] Henan Univ Sci & Technol, Sch Phys & Engn, Luoyang 471003, Peoples R China. |
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通讯作者地址: Li, XZ (通讯作者),Henan Univ Sci & Technol, Sch Phys & Engn, 263 Kaiyuan Rd, Luoyang 471003, Peoples R China. |
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电子邮件地址: lixinzhong7922@163.com |
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出版商: SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS |
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出版商地址: 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA |
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Web of Science 类别: Optics |
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研究方向: Optics |
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IDS 号: DB3NL |
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ISSN: 0091-3286 |
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eISSN: 1560-2303 |
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29 字符的来源出版物名称缩写: OPT ENG |
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ISO 来源出版物缩写: Opt. Eng. |
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来源出版物页码计数: 10 |
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基金资助致谢: |
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This work was supported by the National Natural Science Foundation of China (Grant No. 61205086, 11404097, and 11504091), Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences (SKLST201203), and Key Research Project of Education Minister of Henan Province (Grant No. 12B140006). |
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第 5 条，共 239 条 |
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标题: Attitude Disturbance Correction for Binocular Vision Cameras in Rendezvous and Docking |
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作者: Zhai, Y (Zhai, You); Zeng, L (Zeng, Luan); Xiong, W (Xiong, Wei); Shan, QS (Shan, Qiusha) |
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来源出版物: IEEE AEROSPACE AND ELECTRONIC SYSTEMS MAGAZINE 卷: 30 期: 12 页: 34-40 DOI: 10.1109/MAES.2015.150019 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 4 |
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使用次数 (2013 年至今): 4 |
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入藏号: WOS:000368406300004 |
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语种: English |
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文献类型: Article |
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地址: [Zhai, You; Zeng, Luan; Xiong, Wei] Equipment Acad PLA, Beijing 101416, Peoples R China. |
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通讯作者地址: Zhai, Y (通讯作者),Equipment Acad PLA, Key Lab, Bayi Rd 172,Mailbox 3380, Beijing 101416, Peoples R China. |
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电子邮件地址: youyou1952@sina.com |
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出版商: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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出版商地址: 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
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Web of Science 类别: Engineering, Aerospace; Engineering, Electrical & Electronic |
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研究方向: Engineering |
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IDS 号: DB3JF |
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ISSN: 0885-8985 |
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eISSN: 1557-959X |
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29 字符的来源出版物名称缩写: IEEE AERO EL SYS MAG |
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ISO 来源出版物缩写: IEEE Aerosp. Electron. Syst. Mag. |
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来源出版物页码计数: 7 |
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第 6 条，共 239 条 |
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标题: Degradation of high power single emitter laser modules using nanosilver paste in continuous pulse conditions |
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作者: Yan, HD (Yan, Haidong); Mei, YH (Mei, Yunhui); Li, X (Li, Xin); Zhang, P (Zhang, Pu); Lu, GQ (Lu, Guo-Quan) |
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来源出版物: MICROELECTRONICS RELIABILITY 卷: 55 期: 12 特刊: SI 页: 2532-2541 DOI: 10.1016/j.microrel.2015.07.037 子辑: A 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 5 |
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使用次数 (2013 年至今): 5 |
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摘要: This paper is mainly reported to a pulse reliability investigation of high power single emitter laser modules with nanosilver paste. Comparative experiments in continuous pulse conditions for the laser modules packaged with nanosilver paste, indium and AuSn solders were conducted. The results indicate that the laser modules attached by nanosilver paste have a longer-term lifetime than those with indium and AuSn solders in continuous pulse conditions. Transient thermal behavior and coupled thermo-mechanical behavior in continuous pulse conditions are simulated by finite element method (FEM). A semi-empirical model based on Arrhenius relationship is established to provide relative reliability assessments for laser modules by combining with the simulating results. (C) 2015 Elsevier Ltd. All rights reserved. |
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入藏号: WOS:000367773000010 |
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语种: English |
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文献类型: Article |
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作者关键词: Nanosilver paste; Laser module; Die-attach interface; Pulse mode; Reliability |
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KeyWords Plus: DIODE BARS; SEMICONDUCTOR-LASERS; THERMAL-PROPERTIES; INTERFACE MATERIAL; INDIUM SOLDER; AU/SN SOLDER; RELIABILITY; TEMPERATURE; PACKAGES; FAILURE |
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地址: [Yan, Haidong; Mei, Yunhui] Tianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin 300072, Peoples R China. |
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通讯作者地址: Mei, YH (通讯作者),Tianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin 300072, Peoples R China. |
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电子邮件地址: yunhui@tju.edu.cn |
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出版商: PERGAMON-ELSEVIER SCIENCE LTD |
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出版商地址: THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND |
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Web of Science 类别: Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Physics, Applied |
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研究方向: Engineering; Science & Technology - Other Topics; Physics |
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IDS 号: DA4MC |
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ISSN: 0026-2714 |
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29 字符的来源出版物名称缩写: MICROELECTRON RELIAB |
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ISO 来源出版物缩写: Microelectron. Reliab. |
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来源出版物页码计数: 10 |
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基金资助致谢: |
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The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 61334010), and the Tianjin Municipal Natural Science Foundation (under grant Nos. 13JCQNJC06600, 13JCZDJC33600, and 13JCQNJC02400). The work was supported by and corresponds to Prof. Yunhui Mei of Tianjin University. |
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第 7 条，共 239 条 |
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标题: Yb-doped passively mode-locked fiber laser with Bi2Te3-deposited |
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作者: Li, L (Li Lu); Yan, PG (Yan Pei-Guang); Wang, YG (Wang Yong-Gang); Duan, LN (Duan Li-Na); Sun, H (Sun Hang); Si, JH (Si Jin-Hai) |
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来源出版物: CHINESE PHYSICS B 卷: 24 期: 12 文献号: 124204 DOI: 10.1088/1674-1056/24/12/124204 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 5 |
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使用次数 (2013 年至今): 5 |
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摘要: In this study we present an all-normal-dispersion Yb-doped fiber laser passively mode-locked with topological insulator (Bi2Te3) saturable absorber. The saturable absorber device is fabricated by depositing Bi2Te3 on a tapered fiber through using pulsed laser deposition (PLD) technology, which can give rise to less non-saturable losses than most of the solution processing methods. Owing to the long interaction length, Bi2Te3 is not exposed to high optical power, which allows the saturable absorber device to work in a high power regime. The modulation depth of this kind of saturable absorber is measured to be 10%. By combining the saturable absorber device with Yb-doped fiber laser, a mode-locked pulse operating at a repetition rate of 19.8 MHz is achieved. The 3-dB spectral width and pulse duration are measured to be 1.245 nm and 317 ps, respectively. |
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入藏号: WOS:000366977800026 |
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语种: English |
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文献类型: Article |
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作者关键词: topological insulator; mode-locked lasers; pulsed laser deposition technology; fiber lasers |
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KeyWords Plus: EVANESCENT-FIELD INTERACTION; TOPOLOGICAL INSULATOR BI2SE3; MOS2 SATURABLE ABSORBER; SINGLE DIRAC CONE; BI2TE3; GENERATION; SOLITONS; LOCKING; SURFACE; GHZ |
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地址: [Li Lu; Wang Yong-Gang; Duan Li-Na; Sun Hang] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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通讯作者地址: Wang, YG (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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电子邮件地址: chinawygxjw@opt.ac.cn |
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出版商: IOP PUBLISHING LTD |
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出版商地址: TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
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Web of Science 类别: Physics, Multidisciplinary |
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研究方向: Physics |
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IDS 号: CZ3AZ |
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ISSN: 1674-1056 |
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eISSN: 1741-4199 |
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29 字符的来源出版物名称缩写: CHINESE PHYS B |
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ISO 来源出版物缩写: Chin. Phys. B |
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来源出版物页码计数: 5 |
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基金资助致谢: |
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Project supported by the National Natural Science Foundation of China (Grant No. 61378024) and the Natural Science Fund of Guangdong Province, China (Grant No. S2013010012235). |
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第 8 条，共 239 条 |
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标题: Mining Spatial-Temporal Patterns and Structural Sparsity for Human Motion Data Denoising |
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作者: Feng, YF (Feng, Yinfu); Ji, MM (Ji, Mingming); Xiao, J (Xiao, Jun); Yang, XS (Yang, Xiaosong); Zhang, JJ (Zhang, Jian J.); Zhuang, YT (Zhuang, Yueting); Li, XL (Li, Xuelong) |
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来源出版物: IEEE TRANSACTIONS ON CYBERNETICS 卷: 45 期: 12 页: 2693-2706 DOI: 10.1109/TCYB.2014.2381659 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 8 |
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使用次数 (2013 年至今): 8 |
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摘要: Motion capture is an important technique with a wide range of applications in areas such as computer vision, computer animation, film production, and medical rehabilitation. Even with the professional motion capture systems, the acquired raw data mostly contain inevitable noises and outliers. To denoise the data, numerous methods have been developed, while this problem still remains a challenge due to the high complexity of human motion and the diversity of real-life situations. In this paper, we propose a data-driven-based robust human motion denoising approach by mining the spatial-temporal patterns and the structural sparsity embedded in motion data. We first replace the regularly used entire pose model with a much fine-grained partlet model as feature representation to exploit the abundant local body part posture and movement similarities. Then, a robust dictionary learning algorithm is proposed to learn multiple compact and representative motion dictionaries from the training data in parallel. Finally, we reformulate the human motion denoising problem as a robust structured sparse coding problem in which both the noise distribution information and the temporal smoothness property of human motion have been jointly taken into account. Compared with several state-of-the-art motion denoising methods on both the synthetic and real noisy motion data, our method consistently yields better performance than its counterparts. The outputs of our approach are much more stable than that of the others. In addition, it is much easier to setup the training dataset of our method than that of the other data-driven-based methods. |
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入藏号: WOS:000365320300006 |
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PubMed ID: 25561602 |
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语种: English |
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文献类型: Article |
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作者关键词: Human motion denoising; l(2,p)-norm; Microsoft Kinect; motion capture data; robust dictionary learning; robust structured sparse coding |
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KeyWords Plus: ACTION RECOGNITION; CAPTURE; REPRESENTATION; IMAGES; ANIMATION; WAVELETS; PURSUIT; NOISE |
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地址: [Feng, Yinfu; Ji, Mingming; Xiao, Jun; Zhuang, Yueting] Zhejiang Univ, Coll Comp Sci, Hangzhou 310027, Zhejiang, Peoples R China. |
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通讯作者地址: Xiao, J (通讯作者),Zhejiang Univ, Coll Comp Sci, Hangzhou 310027, Zhejiang, Peoples R China. |
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电子邮件地址: junx@cs.zju.edu.cn |
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出版商: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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出版商地址: 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
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Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Cybernetics |
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研究方向: Computer Science |
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IDS 号: CW9LN |
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ISSN: 2168-2267 |
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eISSN: 2168-2275 |
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29 字符的来源出版物名称缩写: IEEE T CYBERNETICS |
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ISO 来源出版物缩写: IEEE T. Cybern. |
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来源出版物页码计数: 14 |
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基金资助致谢: |
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This work was supported in part by the National Key Basic Research Program of China under Grant 2012CB316400, in part by the National High Technology Research and Development Program under Grant 2012AA011502, in part by the Zhejiang Provincial Natural Science Foundation of China under Grant LY13F020001, in part by the Fundamental Research Funds for the Central Universities under Grant 2014FZA5013, in part by Zhejiang Province Public Technology Applied Research Projects under Grant 2014C33090, and in part by the grant of the Sino-U.K. Higher Education Research Partnership for Ph.D. student's project funded by the Department of Business, Innovation, and Skills of the British Government and the Ministry of Education of China. This paper was recommended by Associate Editor L. Shao. |
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第 9 条，共 239 条 |
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标题: Efficient Video Stitching Based on Fast Structure Deformation |
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作者: Li, J (Li, Jing); Xu, W (Xu, Wei); Zhang, JG (Zhang, Jianguo); Zhang, MJ (Zhang, Maojun); Wang, ZM (Wang, Zhengming); Li, XL (Li, Xuelong) |
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来源出版物: IEEE TRANSACTIONS ON CYBERNETICS 卷: 45 期: 12 页: 2707-2719 DOI: 10.1109/TCYB.2014.2381774 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 8 |
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使用次数 (2013 年至今): 8 |
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摘要: In computer vision, video stitching is a very challenging problem. In this paper, we proposed an efficient and effective wide-view video stitching method based on fast structure deformation that is capable of simultaneously achieving quality stitching and computational efficiency. For a group of synchronized frames, firstly, an effective double-seam selection scheme is designed to search two distinct but structurally corresponding seams in the two original images. The seam location of the previous frame is further considered to preserve the inter-frame consistency. Secondly, along the double seams, 1-D feature detection and matching is performed to capture the structural relationship between the two adjacent views. Thirdly, after feature matching, we propose an efficient algorithm to linearly propagate the deformation vectors to eliminate structure misalignment. At last, image intensity misalignment is corrected by rapid gradient fusion based on the successive over relaxation iteration (SORI) solver. A principled solution to the initialization of the SORI significantly reduced the number of iterations required. We have compared favorably our method with seven state-of-the-art image and video stitching algorithms as well as traditional ones. Experimental results show that our method outperforms the existing ones compared in terms of overall stitching quality and computational efficiency. |
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入藏号: WOS:000365320300007 |
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PubMed ID: 25561603 |
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语种: English |
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文献类型: Article |
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作者关键词: Computational efficiency; computer vision; intensity misalignment; machine learning; structure misalignment; video stitching |
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KeyWords Plus: TEXTURE SYNTHESIS; IMAGE MOSAICS; REGISTRATION; DOMAIN; RECOGNITION; FEATURES; RANGE |
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地址: [Li, Jing; Xu, Wei; Zhang, Maojun] Natl Univ Def Technol, Coll Informat Syst & Management, Changsha 410073, Hunan, Peoples R China. |
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通讯作者地址: Li, J (通讯作者),Natl Univ Def Technol, Coll Informat Syst & Management, Changsha 410073, Hunan, Peoples R China. |
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电子邮件地址: jingli@nudt.edu.cn; weixu@nudt.edu.cn; jgzhang@computing.dundee.ac.uk; xuelong_li@opt.ac.cn |
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出版商: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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出版商地址: 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
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Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Cybernetics |
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研究方向: Computer Science |
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IDS 号: CW9LN |
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ISSN: 2168-2267 |
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eISSN: 2168-2275 |
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29 字符的来源出版物名称缩写: IEEE T CYBERNETICS |
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ISO 来源出版物缩写: IEEE T. Cybern. |
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来源出版物页码计数: 13 |
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基金资助致谢: |
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This work was supported in part by the National Natural Science Foundation of China under Grant 61403403 and Grant 61125106, in part by the National University of Defense and Technology under Project JC13-05-02, and in part by the Shaanxi Key Innovation Team of Science and Technology under Grant 2012KCT-04. This paper was recommended by Associate Editor L. Shao. |
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第 10 条，共 239 条 |
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标题: Learning a Tracking and Estimation Integrated Graphical Model for Human Pose Tracking |
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作者: Zhao, L (Zhao, Lin); Gao, XB (Gao, Xinbo); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong) |
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来源出版物: IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS 卷: 26 期: 12 页: 3176-3186 DOI: 10.1109/TNNLS.2015.2411287 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 2 |
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被引频次合计: 2 |
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使用次数 (最近 180 天): 0 |
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使用次数 (2013 年至今): 0 |
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摘要: We investigate the tracking of 2-D human poses in a video stream to determine the spatial configuration of body parts in each frame, but this is not a trivial task because people may wear different kinds of clothing and may move very quickly and unpredictably. The technology of pose estimation is typically applied, but it ignores the temporal context and cannot provide smooth, reliable tracking results. Therefore, we develop a tracking and estimation integrated model (TEIM) to fully exploit temporal information by integrating pose estimation with visual tracking. However, joint parsing of multiple articulated parts over time is difficult, because a full model with edges capturing all pairwise relationships within and between frames is loopy and intractable. In previous models, approximate inference was usually resorted to, but it cannot promise good results and the computational cost is large. We overcome these problems by exploring the idea of divide and conquer, which decomposes the full model into two much simpler tractable submodels. In addition, a novel two-step iteration strategy is proposed to efficiently conquer the joint parsing problem. Algorithmically, we design TEIM very carefully so that: 1) it enables pose estimation and visual tracking to compensate for each other to achieve desirable tracking results; 2) it is able to deal with the problem of tracking loss; and 3) it only needs past information and is capable of tracking online. Experiments are conducted on two public data sets in the wild with ground truth layout annotations, and the experimental results indicate the effectiveness of the proposed TEIM framework. |
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入藏号: WOS:000365312800017 |
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PubMed ID: 25826809 |
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语种: English |
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文献类型: Article |
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作者关键词: Pictorial structure (PS); pose estimation; pose tracking; visual tracking |
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KeyWords Plus: DISCRIMINANT-ANALYSIS; VISUAL TRACKING; PICTORIAL STRUCTURES; FLEXIBLE MIXTURES; RECOGNITION; APPEARANCE; RETRIEVAL; PARTS |
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地址: [Zhao, Lin; Gao, Xinbo] Xidian Univ, Sch Elect Engn, Video & Image Proc Syst VIPS Lab, Xian 710071, Peoples R China. |
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通讯作者地址: Zhao, L (通讯作者),Xidian Univ, VIPS Lab, Sch Elect Engn, Pattern Recognit & Intelligent Syst, Xian 710071, Peoples R China. |
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电子邮件地址: sharling1988@gmail.com; xbgao@mail.xidian.edu.cn; dacheng.tao@uts.edu.au; xuelong_li@opt.ac.cn |
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出版商: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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出版商地址: 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
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Web of Science 类别: Computer Science, Artificial Intelligence; Computer Science, Hardware & Architecture; Computer Science, Theory & Methods; Engineering, Electrical & Electronic |
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|
研究方向: Computer Science; Engineering |
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IDS 号: CW9IQ |
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ISSN: 2162-237X |
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eISSN: 2162-2388 |
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29 字符的来源出版物名称缩写: IEEE T NEUR NET LEAR |
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ISO 来源出版物缩写: IEEE Trans. Neural Netw. Learn. Syst. |
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来源出版物页码计数: 11 |
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基金资助致谢: |
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This work is supported by the National Natural Science Foundation of China (Grant Nos. 61125204, 61432014, 61172146, and 61125106), the Fundamental Research Funds for the Central Universities (Grant Nos. BDZ021403 and JB149901), the Program for Changjiang Scholars and Innovative Research Team in University of China (No. IRT13088), the Shaanxi Innovative Research Team for Key Science and Technology (No. 2012KCT-02), Australian Research Council Projects FT-130101457, DP-140102164 and DP-120103730, and by the Key Research Program of the Chinese Academy of Sciences (Grant No. KGZD-EW-T03). |
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第 11 条，共 239 条 |
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标题: Passively Q-switched Nd:YAG laser with a MoS2 solution saturable absorber |
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作者: Lin, T (Lin, Tao); Sun, H (Sun, Hang); Wang, X (Wang, Xi); Mao, D (Mao, Dong); Wang, YG (Wang, Yonggang); Li, L (Li, Lu); Duan, LN (Duan, Lina) |
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来源出版物: LASER PHYSICS 卷: 25 期: 12 文献号: 125805 DOI: 10.1088/1054-660X/25/2/125805 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 4 |
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使用次数 (2013 年至今): 4 |
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摘要: This study presents a passively Q-switched Nd:YAG laser using a MoS2 solution as a saturable absorber. The prepared MoS2 solution saturable absorber features adjustable optical absorption, high heat dissipation, and non-contact damage. By inserting the MoS2 solution saturable absorber into a Z-type Nd:YAG laser cavity, a stable Q-switched laser with the maximum repetition rate of 20.8 KHz centered at 1064.24 nm was achieved, with the shortest pulse width at 2.8 mu s. The results experimentally confirm the potential application of a MoS2 solution saturable absorber for high performance Q-switched solid-state lasers. |
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入藏号: WOS:000365351200020 |
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语种: English |
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文献类型: Article |
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作者关键词: Q-switched; solid-state lasers; MoS2; saturable absorber |
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KeyWords Plus: ABSORPTION |
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地址: [Lin, Tao; Sun, Hang] Xian Univ Technol, Dept Elect Engn, Xian 710048, Peoples R China. |
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通讯作者地址: Lin, T (通讯作者),Xian Univ Technol, Dept Elect Engn, Xian 710048, Peoples R China. |
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电子邮件地址: lintao@xuat.edu.cn |
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出版商: IOP PUBLISHING LTD |
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|
出版商地址: TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
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Web of Science 类别: Optics; Physics, Applied |
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研究方向: Optics; Physics |
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IDS 号: CW9XJ |
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ISSN: 1054-660X |
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eISSN: 1555-6611 |
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29 字符的来源出版物名称缩写: LASER PHYS |
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ISO 来源出版物缩写: Laser Phys. |
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来源出版物页码计数: 5 |
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基金资助致谢: |
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This work was supported by the national natural science foundation of China under grants 61378024, and the science and the open research fund of state key laboratory of transient optics and photonics, Chinese academy of sciences under grants SKLST201304. |
|
第 12 条，共 239 条 |
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标题: Highly efficient nonlinear ellipse rotation in bulk SrTiO3 crystal and its applications |
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作者: Sun, QB (Sun, Qibing); Liu, HJ (Liu, Hongjun); Huang, N (Huang, Nan); Wang, ZL (Wang, Zhaolu); Li, SP (Li, Shaopeng); Han, J (Han, Jing) |
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来源出版物: LASER PHYSICS 卷: 25 期: 12 文献号: 125403 DOI: 10.1088/1054-660X/25/12/125403 出版年: DEC 2015 |
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|
Web of Science 核心合集中的 "被引频次": 0 |
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|
被引频次合计: 0 |
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|
使用次数 (最近 180 天): 5 |
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使用次数 (2013 年至今): 5 |
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摘要: We investigated the highly efficient, nonlinear ellipse rotation (NER) effect in bulk SrTiO3 crystal, which provides practical application as a pulse cleaner for ultrashort pulses. A highly stable, ultrafast NER effect was realized by using a bulk SrTiO3 crystal with a fast response time, strong optical Kerr effect, high damage threshold, and wide transmission wavelength range. Transmissivity higher than 30% was obtained at a level of several mJ, in which the temporal contrast can be enhanced by about three orders of magnitude. This provides a simple and feasible technology for improving the temporal contrast for the ultrahigh power laser system. |
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入藏号: WOS:000365351200012 |
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语种: English |
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文献类型: Article |
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作者关键词: nonlinear ellipse rotation; SrTiO3 crystal; pulse cleaner; temporal contrast |
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KeyWords Plus: BIREFRINGENT FIBERS; PULSES; LASER; CLEANER |
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|
地址: [Sun, Qibing; Liu, Hongjun; Huang, Nan; Wang, Zhaolu; Li, Shaopeng; Han, Jing] Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China. |
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通讯作者地址: Sun, QB (通讯作者),Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China. |
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电子邮件地址: liuhongjun@opt.ac.cn |
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作者识别号: |
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出版商: IOP PUBLISHING LTD |
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|
出版商地址: TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
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|
Web of Science 类别: Optics; Physics, Applied |
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|
研究方向: Optics; Physics |
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IDS 号: CW9XJ |
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ISSN: 1054-660X |
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eISSN: 1555-6611 |
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29 字符的来源出版物名称缩写: LASER PHYS |
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ISO 来源出版物缩写: Laser Phys. |
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来源出版物页码计数: 4 |
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基金资助致谢: |
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|
||||||
|
This research is supported by the National Nature Science Foundation of China under Grant 61178023 and 61275134. |
|
第 13 条，共 239 条 |
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标题: Linkage of Dual Frequency Combs Based on All Polarization-Maintaining Femtosecond Fiber Lasers |
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|
作者: Xu, X (Xu, Xin); Feng, Y (Feng, Ye); Liu, YS (Liu, Yuanshan); Hu, XH (Hu, Xiaohong); Li, FT (Li, Feitao); Zhang, T (Zhang, Ting); Zhang, W (Zhang, Wei); Yang, Z (Yang, Zhi); Cheng, Z (Cheng, Zhao); Zhao, W (Zhao, Wei); Wang, YS (Wang, Yishan) |
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来源出版物: IEEE PHOTONICS TECHNOLOGY LETTERS 卷: 27 期: 23 页: 2421-2424 DOI: 10.1109/LPT.2015.2462080 出版年: DEC 1 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 16 |
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使用次数 (2013 年至今): 16 |
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摘要: Perfect linkage of dual frequency combs based on all polarization-maintaining femtosecond fiber lasers is demonstrated. By employing two independent tracking feedback controlling circuits, the repetition frequency (f(r)) and the carrier-envelope offset frequency (f(ceo)) of the slave frequency comb track the master's f(r) and f(ceo), respectively. The correlation coefficients of the dual f(r)'s and the dual f(ceo)'s are up to 0.99 and 0.98, which indicate an ideal linkage between the dual frequency combs. To the best of our knowledge, this is the first report about linkage of dual frequency combs. |
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入藏号: WOS:000363209500001 |
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语种: English |
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文献类型: Article |
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作者关键词: Ultrafast optics; supercontinuum generation; fiber laser |
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地址: [Xu, Xin; Feng, Ye; Liu, Yuanshan; Hu, Xiaohong; Li, Feitao; Zhang, Ting; Zhang, Wei; Yang, Zhi; Zhao, Wei; Wang, Yishan] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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通讯作者地址: Liu, YS (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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|
电子邮件地址: xuxin_1007@163.com; ye.feng.tut@gmail.com; liuyuanshan@opt.ac.cn; xhhu@opt.ac.cn; lifeitao@opt.cn; zhangting712@opt.ac.cn; zhangwei@opt.ac.cn; yanghzhi@opt.ac.cn; zhao.cheng@femtolasers.com; weiz@opt.ac.cn; yishanwang@opt.ac.cn |
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出版商: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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|
出版商地址: 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
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|
Web of Science 类别: Engineering, Electrical & Electronic; Optics; Physics, Applied |
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|
研究方向: Engineering; Optics; Physics |
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|
IDS 号: CU0LZ |
||||||||
|
ISSN: 1041-1135 |
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eISSN: 1941-0174 |
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29 字符的来源出版物名称缩写: IEEE PHOTONIC TECH L |
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ISO 来源出版物缩写: IEEE Photonics Technol. Lett. |
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|
来源出版物页码计数: 4 |
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|
基金资助致谢: |
||||||||
|
||||||||
|
This work was supported in part by the Natural Science Foundation of China under Grant 61275164, in part by the Chinese Academy of Sciences/State Administration of Foreign Experts Affairs International Partnership Program for Creative Research Teams, and in part by the National Major Scientific Instrumentation Development Program of China under Grant 2011YQ120022. (Xin Xu and Ye Feng contributed equally to this work.) (Corresponding authors: Yuanshan Liu and Yishan Wang.) |
|
第 14 条，共 239 条 |
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标题: Plasmon-induced transparency in terahertz planar metamaterials |
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作者: Chen, X (Chen, Xu); Fan, WH (Fan, Wen-Hui) |
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来源出版物: OPTICS COMMUNICATIONS 卷: 356 页: 84-89 DOI: 10.1016/j.optcom.2015.07.063 出版年: DEC 1 2015 |
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|
Web of Science 核心合集中的 "被引频次": 0 |
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|
被引频次合计: 0 |
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|
使用次数 (最近 180 天): 61 |
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使用次数 (2013 年至今): 64 |
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摘要: A planar metamaterial structure with plasmon-induced transparency effect in terahertz region is proposed and systematic numerical study is presented in this paper. The metamaterial structure is comprised of two different spilt-ring resonators in the same plane. With the destructive interference coupling between these two split-ring resonators, the proposed metamaterial structure exhibits a large transparency window within a broad absorption spectra. Moreover, the origin of transparency window with extremely low absorption and strong dispersion is clarified by two coupled Lorentzian resonators analytical model, and verified by accurate simulation of the electromagnetic wave propagation in the metamaterial structure. The proposed metamaterial opens up the avenue to design micro-sized functional devices used in switching, modulation, and slowing down terahertz waves. (C) 2015 Elsevier B.V. All rights reserved. |
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入藏号: WOS:000362603600016 |
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语种: English |
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文献类型: Article |
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作者关键词: Metamaterials; Far infrared or terahertz; Surface plasmons |
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KeyWords Plus: ELECTROMAGNETICALLY INDUCED TRANSPARENCY; FANO RESONANCES; MAGNETIC-RESONANCE; ANALOG; FREQUENCIES; LIGHT |
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地址: [Chen, Xu; Fan, Wen-Hui] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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通讯作者地址: Fan, WH (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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电子邮件地址: fanwh@opt.ac.cn |
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出版商: ELSEVIER SCIENCE BV |
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出版商地址: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
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Web of Science 类别: Optics |
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研究方向: Optics |
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IDS 号: CT2AE |
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ISSN: 0030-4018 |
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eISSN: 1873-0310 |
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29 字符的来源出版物名称缩写: OPT COMMUN |
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ISO 来源出版物缩写: Opt. Commun. |
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来源出版物页码计数: 6 |
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基金资助致谢: |
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This work was financially supported by the "Hundreds of Talents Programs" of the Chinese Academy of Sciences (Grant no. J08-029), the Innovative Project of the Chinese Academy of Sciences (Grant no. YYYJ-1123-4), and the CAS/SAFEA International Partnership Program for Creative Research Teams. |
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第 15 条，共 239 条 |
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标题: Tracking Human Pose Using Max-Margin Markov Models |
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作者: Zhao, L (Zhao, Lin); Gao, XB (Gao, Xinbo); Tao, DC (Tao, Dacheng); Li, XL (Li, Xuelong) |
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来源出版物: IEEE TRANSACTIONS ON IMAGE PROCESSING 卷: 24 期: 12 页: 5274-5287 DOI: 10.1109/TIP.2015.2473662 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 7 |
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使用次数 (2013 年至今): 8 |
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摘要: We present a new method for tracking human pose by employing max-margin Markov models. Representing a human body by part-based models, such as pictorial structure, the problem of pose tracking can be modeled by a discrete Markov random field. Considering max-margin Markov networks provide an efficient way to deal with both structured data and strong generalization guarantees, it is thus natural to learn the model parameters using the max-margin technique. Since tracking human pose needs to couple limbs in adjacent frames, the model will introduce loops and will be intractable for learning and inference. Previous work has resorted to pose estimation methods, which discard temporal information by parsing frames individually. Alternatively, approximate inference strategies have been used, which can overfit to statistics of a particular data set. Thus, the performance and generalization of these methods are limited. In this paper, we approximate the full model by introducing an ensemble of two tree-structured sub-models, Markov networks for spatial parsing and Markov chains for temporal parsing. Both models can be trained jointly using the max-margin technique, and an iterative parsing process is proposed to achieve the ensemble inference. We apply our model on three challengeable data sets, which contains highly varied and articulated poses. Comprehensive experimental results demonstrate the superior performance of our method over the state-of-the-art approaches. |
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入藏号: WOS:000362488900013 |
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语种: English |
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文献类型: Article |
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作者关键词: Pose tracking; pose estimation; max-margin; articulated shapes |
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KeyWords Plus: ACTION RECOGNITION; PICTORIAL STRUCTURES; FLEXIBLE MIXTURES; PEOPLE; VIDEO; FLOW; PROPAGATION; PARTS |
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地址: [Zhao, Lin] Xidian Univ, Sch Elect Engn, Xian 710071, Peoples R China. |
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通讯作者地址: Zhao, L (通讯作者),Xidian Univ, Sch Elect Engn, Xian 710071, Peoples R China. |
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电子邮件地址: sharling1988@gmail.com; xbgao@mail.xidian.edu.cn; dacheng.tao@uts.edu.au; xuelong_li@opt.ac.cn |
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出版商: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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出版商地址: 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
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Web of Science 类别: Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic |
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研究方向: Computer Science; Engineering |
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IDS 号: CT0MC |
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ISSN: 1057-7149 |
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eISSN: 1941-0042 |
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29 字符的来源出版物名称缩写: IEEE T IMAGE PROCESS |
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ISO 来源出版物缩写: IEEE Trans. Image Process. |
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来源出版物页码计数: 14 |
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基金资助致谢: |
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This work was supported in part by the National Basic Research Program of China (973 Program) under Grant 2012CB316400, in part by the National Natural Science Foundation of China under Grant 61125204, and Grant 61432014, in part by the Fundamental Research Funds through the Central Universities under Grant BDZ021403 and Grant JB149901, in part by the Program for Changjiang Scholars and Innovative Research Team in University of China under Grant IRT13088, in part by the Shaanxi Innovative Research Team for Key Science and Technology under Grant 2012KCT-02, in part by the Australian Research Council under Project DP-120103730 and Project FT-130101457, and in part by the Key Research Program through the Chinese Academy of Sciences under Grant KGZDEW-T03. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Dimitrios Tzovaras. |
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第 16 条，共 239 条 |
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标题: A Class of Manifold Regularized Multiplicative Update Algorithms for Image Clustering |
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作者: Yang, SM (Yang, Shangming); Yi, Z (Yi, Zhang); He, XF (He, Xiaofei); Li, XL (Li, Xuelong) |
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来源出版物: IEEE TRANSACTIONS ON IMAGE PROCESSING 卷: 24 期: 12 页: 5302-5314 DOI: 10.1109/TIP.2015.2457033 出版年: DEC 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 18 |
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使用次数 (2013 年至今): 19 |
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摘要: Multiplicative update algorithms are important tools for information retrieval, image processing, and pattern recognition. However, when the graph regularization is added to the cost function, different classes of sample data may be mapped to the same subspace, which leads to the increase of data clustering error rate. In this paper, an improved nonnegative matrix factorization (NMF) cost function is introduced. Based on the cost function, a class of novel graph regularized NMF algorithms is developed, which results in a class of extended multiplicative update algorithms with manifold structure regularization. Analysis shows that in the learning, the proposed algorithms can efficiently minimize the rank of the data representation matrix. Theoretical results presented in this paper are confirmed by simulations. For different initializations and data sets, variation curves of cost functions and decomposition data are presented to show the convergence features of the proposed update rules. Basis images, reconstructed images, and clustering results are utilized to present the efficiency of the new algorithms. Last, the clustering accuracies of different algorithms are also investigated, which shows that the proposed algorithms can achieve state-of-the-art performance in applications of image clustering. |
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入藏号: WOS:000362488900015 |
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PubMed ID: 26186793 |
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语种: English |
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文献类型: Article |
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作者关键词: Structure retrieving; convergence analysis; manifold structure; multiplicative algorithms; low rank representation |
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KeyWords Plus: NONNEGATIVE MATRIX FACTORIZATION; NONLINEAR DIMENSIONALITY REDUCTION; GEOMETRIC FRAMEWORK; SEGMENTATION |
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地址: [Yang, Shangming] Univ Elect Sci & Technol China, Sch Informat & Software Engn, Chengdu 611731, Peoples R China. |
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通讯作者地址: Yang, SM (通讯作者),Univ Elect Sci & Technol China, Sch Informat & Software Engn, Chengdu 611731, Peoples R China. |
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电子邮件地址: minn003@163.com; zhangyi@scu.edu.cn; xiaofeihe@cad.zju.edu.cn; xuelong_li@nwpu.edu.cn |
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出版商: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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出版商地址: 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
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Web of Science 类别: Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic |
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研究方向: Computer Science; Engineering |
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IDS 号: CT0MC |
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ISSN: 1057-7149 |
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eISSN: 1941-0042 |
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29 字符的来源出版物名称缩写: IEEE T IMAGE PROCESS |
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ISO 来源出版物缩写: IEEE Trans. Image Process. |
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来源出版物页码计数: 13 |
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基金资助致谢: |
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This work was supported in part by the National Science Foundation of China under Grant 61432012, in part by the Shaanxi Key Innovation Team of Science and Technology under Grant 2012KCT-04, and in part by the Program for New Century Excellent Talents in University under Grant NCET-11-0355. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Javier Mateos. |
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第 17 条，共 239 条 |
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标题: Video-based road detection via online structural learning |
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作者: Yuan, Y (Yuan, Yuan); Jiang, ZY (Jiang, Zhiyu); Wang, Q (Wang, Qi) |
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来源出版物: NEUROCOMPUTING 卷: 168 页: 336-347 DOI: 10.1016/j.neucom.2015.05.092 出版年: NOV 30 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 8 |
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使用次数 (2013 年至今): 38 |
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摘要: Video-based road detection is a crucial enabler for the successful development of driver assistant and robot navigation systems. But reliable detection is still on its infancy and deserves further research. In order to adapt to the situation consisting of environmental varieties, an online framework is proposed focusing on exploring the structure cue of the feature vectors. Through the structural support vector machine, the road boundary and non-boundary instances are firstly discriminated. Then they are utilized to fit a complete road boundary. After that, the road region is accordingly inferred and the obtained results are treated as ground truth to update the learned model. Three contributions are claimed in this work: online-learning updating, structural information consideration, and targeted sampling selection. The proposed method is finally evaluated on several challenging videos captured by ourselves. Qualitative and quantitative results show that it outperforms the other competitors. (C) 2015 Elsevier B.V. All rights reserved. |
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入藏号: WOS:000359165000034 |
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语种: English |
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文献类型: Article |
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作者关键词: Computer vision; Machine learning; Road detection; Structural SVM; Online updating; Road boundary |
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KeyWords Plus: TRAFFIC SCENES; PEDESTRIAN DETECTION; VISION; TRACKING; CLASSIFICATION; SCENARIOS; FEATURES; SALIENCY; SYSTEMS; SCALE |
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地址: [Yuan, Yuan; Jiang, Zhiyu] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Ctr OPT IMagery Anal & Learning OPTIMAL, Xian 710119, Shaanxi, Peoples R China. |
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通讯作者地址: Wang, Q (通讯作者),Northwestern Polytech Univ, Sch Comp Sci, Xian 710072, Shaanxi, Peoples R China. |
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电子邮件地址: crabwq@nwpu.edu.cn |
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出版商: ELSEVIER SCIENCE BV |
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|
出版商地址: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
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Web of Science 类别: Computer Science, Artificial Intelligence |
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研究方向: Computer Science |
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IDS 号: CO4XU |
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ISSN: 0925-2312 |
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eISSN: 1872-8286 |
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29 字符的来源出版物名称缩写: NEUROCOMPUTING |
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ISO 来源出版物缩写: Neurocomputing |
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来源出版物页码计数: 12 |
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基金资助致谢: |
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This work is supported by the National Basic Research Program of China (Youth 973 Program) (Grant no. 2013CB336500), State Key Program of National Natural Science of China (Grant no. 61232010), National Natural Science Foundation of China (Grant nos. 61172143, 61379094, and 61105012), Natural Science Foundation Research Project of Shaanxi Province (Grant no. 2015JM6264), Fundamental Research Funds for the Central Universities (Grant no. 3102014JC02020G07), and Open Research Fund of Key Laboratory of Spectral Imaging Technology, Chinese Academy of Sciences. |
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第 18 条，共 239 条 |
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标题: Sparse kernel entropy component analysis for dimensionality reduction of biomedical data |
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作者: Shi, J (Shi, Jun); Jiang, QK (Jiang, Qikun); Zhang, Q (Zhang, Qi); Huang, QH (Huang, Qinghua); Li, XL (Li, Xuelong) |
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来源出版物: NEUROCOMPUTING 卷: 168 页: 930-940 DOI: 10.1016/j.neucom.2015.05.032 出版年: NOV 30 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 10 |
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使用次数 (2013 年至今): 17 |
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摘要: Dimensionality reduction is ubiquitous in biomedical applications. A newly proposed spectral dimensionality reduction method, named kernel entropy component analysis (KECA), can reveal the structure related to Renyi entropy of an input space data set. However, each principal component in the Hilbert space depends on all training samples in KECA, causing degraded performance. To overcome this drawback, a sparse KECA (SKECA) algorithm based on a recursive divide-and-conquer (DC) method is proposed in this work. The original large and complex problem of KECA is decomposed into a series of small and simple sub-problems, and then they are solved recursively. The performance of SKECA is evaluated on four biomedical datasets, and compared with KECA, principal component analysis (PCA), kernel PCA (KPCA), sparse PCA and sparse KPCA. Experimental results indicate that the SKECA outperforms conventional dimensionality reduction algorithms, even for high order dimensional features. It suggests that SKECA is potentially applicable to biomedical data processing. (C) 2015 Elsevier B.V. All rights reserved. |
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入藏号: WOS:000359165000091 |
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语种: English |
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文献类型: Article |
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作者关键词: Sparse kernel entropy component analysis; Divide-and-conquer method; Dimensionality reduction; Biomedical data |
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KeyWords Plus: IMAGE; CLASSIFICATION |
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地址: [Shi, Jun; Jiang, Qikun; Zhang, Qi] Shanghai Univ, Sch Commun & Informat Engn, Shanghai, Peoples R China. |
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通讯作者地址: Huang, QH (通讯作者),S China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Guangdong, Peoples R China. |
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电子邮件地址: qhhuang@scut.edu.cn |
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出版商: ELSEVIER SCIENCE BV |
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|
出版商地址: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
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Web of Science 类别: Computer Science, Artificial Intelligence |
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研究方向: Computer Science |
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IDS 号: CO4XU |
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ISSN: 0925-2312 |
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eISSN: 1872-8286 |
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29 字符的来源出版物名称缩写: NEUROCOMPUTING |
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ISO 来源出版物缩写: Neurocomputing |
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来源出版物页码计数: 11 |
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基金资助致谢: |
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|
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This work is supported by the National Natural Science Foundation of China (61471231, 61125106 and 61372007), Natural Science Foundation of Shanghai (12ZR1410800), Innovation Program of Shanghai Municipal Education Commission (Grant no. 13YZ016), Projects of Innovative Science and Technology, Department of Education, Guangdong Province (2013KJCX0012), the Key Research Program of the Chinese Academy of Sciences (KGZD-EW-T03), and Shanxi Key Innovation Team of Science and Technology (2012KCT-04). |
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第 19 条，共 239 条 |
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标题: Combined analysis of tunable phase mask within spatial and frequency domain |
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作者: Zhou, L (Zhou Liang); Liu, ZH (Liu Zhao-Hui); She, WJ (She Wen-Ji) |
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来源出版物: ACTA PHYSICA SINICA 卷: 64 期: 22 文献号: 224207 DOI: 10.7498/aps.64.224207 出版年: NOV 20 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 2 |
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使用次数 (2013 年至今): 2 |
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摘要: Wavefront coding technique is a powerful technique which overcomes the defects of traditional way to extend depth of field. By inserting a phase mask into the traditional incoherent imaging system, wavefront coding technique does not reduce the resolution and the light gathering power of the optical system but enlarges the depth of field of incoherent imaging system. Although several kinds of phase masks have been reported, cubic phase mask is still of a classical type which has been investigated widely both in spatial and frequency domain. Since the phase profiles of phase masks adopted in classical wavefront coding systems are predefined with specific optical systems, the extension of depth of field is not tunable. Tunable wavefront coding systems are introduced by using a pair of detachable phase masks, which is possible to control the depth of field and bandwidth of system by changing the position of each component with respect to the pupil center. Ojeda-Castaneda [Ojeda-Castaneda J, Rodriguez M, Naranjo R 2010 Proceedings of Progress in Electronics Research Symposium, Cambridge, July 5-8, 2010 p531] proposed to use a pair of cosine phase masks to make defocus sensitivity tunable. Zhao [Zhao H, Wei J X 2014 Opt. Commun. 326 35] investigated an improved version of Ojeda-Castaneda's design in frequency domain and found that the proposed system realized tunable bandwidth. The present study, based on the work of Zhao, analyzes the tunable characteristics of a pair of simple modified detachable cubic phase masks in spatial domain and frequency domain. Firstly, the ray aberration theory is adopted to give mathematical analyses and ray aberration maps of the proposed tunable phase mask. Based on the mathematical derivations, the size of point spread function (PSF) of system can be changed not only by profile of each cubic mask but also by the each mask displacement relative to pupil center. Secondly, a mathematical PSF based on the stationary phase method is derived in spatial domain. Simulations indicate that the positions of PSF translate in the image plane with the displacements of phase mask profile and the position of each component with respect to the pupil center. By analyzing the oscillations of PSF, the effective bandwidth is obtained. Through the expression, we can conclude that the effective bandwidth can be changed by the position, mask profile of each component and defocus. Only when the addition of two mask profiles is large enough, can the effective bandwidth be simplified without adding the influence of defocus. In addition, though the approximate expression of magnitude transfer of function (MTF) has been given by adopting stationary phase method in the appendix of previous work, it cannot give an intuitive grasp of the effective bandwidth in MTF map. Unlike the MTF expression derived before, the exact optical transfer function (OTF) expression is derived by adopting Fresnel integral in frequency domain. Exact MTF and phase transfer function (PTF) can be derived from OTF. Based on the exact MTF expression, simulations give an intuitive effective bandwidth in MTF map. Simulations also show the nonlinear property of PTF. The effective bandwidth and MTF can be changed by different phase mask profiles and positions, which indicate that the effective bandwidth and defocus sensitivity can be tuned. Analyses are conducted both in spatial domain and in frequency domain to verify the tunable property of the proposed phase mask, which provides theoretical foundation for tunable wavefront coding system design. |
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入藏号: WOS:000368824600016 |
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语种: Chinese |
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文献类型: Article |
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作者关键词: tunable wavefront coding; point spread function; optical transfer function |
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KeyWords Plus: EXTENDED DEPTH; SYSTEM; FIELD |
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地址: [Zhou Liang; Liu Zhao-Hui; She Wen-Ji] Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China. |
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通讯作者地址: Zhou, L (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China. |
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电子邮件地址: zhouliang@opt.ac.cn |
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出版商: CHINESE PHYSICAL SOC |
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出版商地址: P O BOX 603, BEIJING 100080, PEOPLES R CHINA |
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Web of Science 类别: Physics, Multidisciplinary |
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研究方向: Physics |
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IDS 号: DB9GO |
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ISSN: 1000-3290 |
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29 字符的来源出版物名称缩写: ACTA PHYS SIN-CH ED |
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ISO 来源出版物缩写: Acta Phys. Sin. |
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来源出版物页码计数: 8 |
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基金资助致谢: |
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Project supported by the National High Technology Research and Development Program of China (Grant No. 2013AA7088047). |
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第 20 条，共 239 条 |
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标题: Improved multiple-wavelength Brillouin-Raman fiber laser assisted by four-wave mixing with a micro-air cavity |
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作者: Li, XJ (Li, Xuejiao); Ren, LY (Ren, Liyong); Lin, X (Lin, Xiao); Ju, HJ (Ju, Haijuan); Chen, N (Chen, Nana); Liang, J (Liang, Jian); Ren, KL (Ren, Kaili); Xu, YP (Xu, Yiping) |
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来源出版物: APPLIED OPTICS 卷: 54 期: 33 页: 9919-9924 DOI: 10.1364/AO.54.009919 出版年: NOV 20 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 7 |
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使用次数 (2013 年至今): 7 |
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摘要: In this paper, a multiple-wavelength Brillouin-Raman fiber laser (MBRFL) with enhanced performance is presented. This is attributed to the improved Fresnel reflection, thus strengthening four-wave mixing in the fiber laser cavity due to the insertion of a micro-air cavity. As a result, compared with the conventional MBRFL without a micro-air cavity, the thresholds of Brillouin Stokes (BS) lines are observed to be reduced, and more BS lines can be generated. In the experiment, a MBRFL having 40 BS lines is achieved with good stability on laser wavelengths and output power. In view of the fact that more BS lines can be established with a simple scheme and low pump power, our MBRFL promises to be employed as a multiwavelength source for optical communication. (C) 2015 Optical Society of America |
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入藏号: WOS:000364988100040 |
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PubMed ID: 26836558 |
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语种: English |
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文献类型: Article |
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KeyWords Plus: RAYLEIGH-SCATTERING; LINEAR CAVITY; RING LASER; MULTIWAVELENGTH; COMB; INTERFEROMETER; TEMPERATURE; GENERATION; THRESHOLD; AMPLIFIER |
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地址: [Li, Xuejiao; Ren, Liyong; Lin, Xiao; Ju, Haijuan; Chen, Nana; Liang, Jian; Ren, Kaili; Xu, Yiping] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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通讯作者地址: Ren, LY (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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电子邮件地址: renliy@opt.ac.cn |
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出版商: OPTICAL SOC AMER |
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出版商地址: 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
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Web of Science 类别: Optics |
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研究方向: Optics |
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IDS 号: CW4UB |
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ISSN: 1559-128X |
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eISSN: 2155-3165 |
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29 字符的来源出版物名称缩写: APPL OPTICS |
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ISO 来源出版物缩写: Appl. Optics |
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来源出版物页码计数: 6 |
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基金资助致谢: |
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National Natural Science Foundation of China (NSFC) (61275149, 61505246, 61535015). |
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第 21 条，共 239 条 |
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标题: Design of short wave infrared imaging spectrometer system based on CDP |
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作者: Zhang, ZF (Zhang, Zhoufeng); Hu, BL (Hu, Bingliang); Yin, QY (Yin, Qinye); Yu, T (Yu, Tao); Li, SY (Li, Siyuan); Gao, XH (Gao, Xiaohui); Zhang, HJ (Zhang, Hongjian) |
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来源出版物: OPTICS EXPRESS 卷: 23 期: 23 页: 29758-29763 DOI: 10.1364/OE.23.029758 出版年: NOV 16 2015 |
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Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
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使用次数 (最近 180 天): 6 |
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使用次数 (2013 年至今): 6 |
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摘要: A compact static infrared snapshot imaging spectrometer (ISIS) is designed in order to satisfy the application requirements of real-time spectral imaging for the moving targets. It consists of a CDP (crossed dispersion prism), an imaging lens, and a detector. Here we describe the spectral imaging principle, and design a short wave infrared imaging spectrometer with 4.8 degrees field of view, the measured spectrum is from 0.9 mu m to 2.5 mu m and is sampled by 40 spectral channels. This instrument has a large potential for detecting, locating and identifying unknown energetic events in real-time. (C) 2014 Optical Society of America |
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入藏号: WOS:000366611500044 |
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PubMed ID: 26698458 |
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语种: English |
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文献类型: Article |
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KeyWords Plus: RESOLUTION |
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地址: [Zhang, Zhoufeng; Hu, Bingliang; Yu, Tao; Li, Siyuan; Gao, Xiaohui; Zhang, Hongjian] Chinese Acad Sci, Xian Inst Opt & Precis Mech, Key Lab Spectral Imaging Tech, Xian 710119, Peoples R China. |
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通讯作者地址: Yu, T (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, Key Lab Spectral Imaging Tech, Xian 710119, Peoples R China. |
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电子邮件地址: jczzf@163.com |
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出版商: OPTICAL SOC AMER |
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出版商地址: 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
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|
Web of Science 类别: Optics |
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研究方向: Optics |
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IDS 号: CY7TH |
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ISSN: 1094-4087 |
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29 字符的来源出版物名称缩写: OPT EXPRESS |
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ISO 来源出版物缩写: Opt. Express |
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来源出版物页码计数: 6 |
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基金资助致谢: |
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|
This study is supported by the National Natural Science Foundation of China (NSFC) under Grant (No. 11327303, No. 61405239) and the Interdiciplinary Innovation Team Project of CAS. |
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第 22 条，共 239 条 |
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标题: Metal-dielectric-metal based narrow band absorber for sensing applications |
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作者: Lu, XY (Lu, Xiaoyuan); Wan, RG (Wan, Rengang); Zhang, TY (Zhang, Tongyi) |
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来源出版物: OPTICS EXPRESS 卷: 23 期: 23 页: 29842-29847 DOI: 10.1364/OE.23.029842 出版年: NOV 16 2015 |
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Web of Science 核心合集中的 "被引频次": 2 |
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被引频次合计: 2 |
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使用次数 (最近 180 天): 19 |
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使用次数 (2013 年至今): 19 |
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摘要: We have investigated numerically the narrowband absorption property of a metal-dielectric-metal based structure which includes a top metallic nanoring arrays, a metal backed plate, and a middle dielectric spacer. Its absorption is up to 90% with linewidth narrower than 10 nm. This can be explained in terms of surface lattice resonance of the periodic structure. The spectrum with the sharp absorption dip, i.e. the lattice resonance, strongly depends on the refractive index of media surrounding the nanorings. This feature can be explored to devise a refractive index sensor, of which the bulk sensitivity factor is one order larger than that based on gap resonance mode, while the surface sensitivity factor can be two times larger. The proposed narrowband absorber has potential in applications of plasmonic biosensors. (C) 2015 Optical Society of America |
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入藏号: WOS:000366611500053 |
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PubMed ID: 26698467 |
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|
语种: English |
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|
文献类型: Article |
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|
KeyWords Plus: REFRACTIVE-INDEX; PLASMONIC SENSOR; METAMATERIALS; RESONATORS; WAVELENGTH; REGIME; ARRAYS |
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|
地址: [Lu, Xiaoyuan; Wan, Rengang; Zhang, Tongyi] Chinese Acad Sci, Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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通讯作者地址: Zhang, TY (通讯作者),Chinese Acad Sci, Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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|
电子邮件地址: tyzhang@opt.ac.cn |
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|
出版商: OPTICAL SOC AMER |
||||
|
出版商地址: 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
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|
Web of Science 类别: Optics |
||||
|
研究方向: Optics |
||||
|
IDS 号: CY7TH |
||||
|
ISSN: 1094-4087 |
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|
29 字符的来源出版物名称缩写: OPT EXPRESS |
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ISO 来源出版物缩写: Opt. Express |
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来源出版物页码计数: 6 |
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基金资助致谢: |
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|
||||
|
This work is supported by the National Natural Science Foundation of China (Grant Nos. 61176084, 11174282, 61475191, 11304375). |
|
第 23 条，共 239 条 |
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标题: Extracting nanosecond pulse signals via stochastic resonance generated by surface plasmon bistability |
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|
作者: Han, J (Han, Jing); Liu, HJ (Liu, Hongjun); Sun, QB (Sun, Qibing); Huang, N (Huang, Nan); Wang, ZL (Wang, Zhaolu); Li, SP (Li, Shaopeng) |
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|
来源出版物: OPTICS LETTERS 卷: 40 期: 22 页: 5367-5370 DOI: 10.1364/OL.40.005367 出版年: NOV 15 2015 |
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|
Web of Science 核心合集中的 "被引频次": 1 |
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|
被引频次合计: 1 |
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|
使用次数 (最近 180 天): 3 |
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使用次数 (2013 年至今): 3 |
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|
摘要: A technology is investigated to extract nanosecond pulse noise hidden signals via stochastic resonance, which is based on surface plasmon bistability. A theoretical model for recovering nanosecond pulse signals is derived to describe the nonlinear process. It is found that the incident angle, polarization state, medium properties, and input noise intensity all determine the efficiency and fidelity of the output signal. The bistable behavior of the output intensity can be accurately controlled to obtain a cross-correlation gain larger than 6 in a wide range of input signal-to-noise ratio from 1:5 to 1:30. Meanwhile, the distortion in the time domain induced by phase shift can be reduced to a negligible level. This work provides a potential method for detecting low-level or hidden pulse signals in various communication fields. (C) 2015 Optical Society of America |
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入藏号: WOS:000366133400060 |
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|
PubMed ID: 26565876 |
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|
语种: English |
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|
文献类型: Article |
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|
KeyWords Plus: OPTICAL BISTABILITY; LIGHT |
||||||
|
地址: [Han, Jing; Liu, Hongjun; Sun, Qibing; Huang, Nan; Wang, Zhaolu; Li, Shaopeng] Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon Technol, Xian 710119, Peoples R China. |
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|
通讯作者地址: Liu, HJ (通讯作者),Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon Technol, Xian 710119, Peoples R China. |
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|
电子邮件地址: liuhongjun@opt.ac.cn |
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|
作者识别号: |
||||||
|
||||||
|
出版商: OPTICAL SOC AMER |
||||||
|
出版商地址: 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
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|
Web of Science 类别: Optics |
||||||
|
研究方向: Optics |
||||||
|
IDS 号: CY0YS |
||||||
|
ISSN: 0146-9592 |
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|
eISSN: 1539-4794 |
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|
29 字符的来源出版物名称缩写: OPT LETT |
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|
ISO 来源出版物缩写: Opt. Lett. |
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|
来源出版物页码计数: 4 |
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|
基金资助致谢: |
||||||
|
||||||
|
National Natural Science Foundation of China (NSFC) (61178023, 61275134) |
|
第 24 条，共 239 条 |
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|
标题: Subwavelength beam focusing via multiple-metal slits arranged along a triangle surface |
||||||
|
作者: Jia, S (Jia, Sen); Wu, YM (Wu, Yiming); Si, JH (Si, Jinhai); Chen, F (Chen, Feng); Hou, X (Hou, Xun) |
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|
来源出版物: OPTICS COMMUNICATIONS 卷: 355 页: 586-590 DOI: 10.1016/j.optcom.2015.06.024 出版年: NOV 15 2015 |
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|
Web of Science 核心合集中的 "被引频次": 0 |
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|
被引频次合计: 0 |
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|
使用次数 (最近 180 天): 19 |
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|
使用次数 (2013 年至今): 19 |
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|
摘要: A compact plasmonic structure is proposed to actualize the subwavelength beam focusing, through a metal slit array arranged along a triangular or trapezium surface profile. The incident light passes through the metal slits in the form of surface plasmon polaritons (SPPs) and then scattered into radiation fields. The constructive interference of radiation fields from individual slits with different depths and widths gives rise to beam focusing. The advantages of the proposed plasmonic lens are having a much smaller lateral dimension and broad working wavelength range. This is of importance for realizing densely integrated photonic circuits. The finite-difference time-domain (FDTD) method is employed to verify the proposed design. The simulation results indicate that the focal spot is beyond the diffraction limit. (C) 2015 Elsevier B.V. All rights reserved. |
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|
入藏号: WOS:000362861400089 |
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|
语种: English |
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|
文献类型: Article |
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|
作者关键词: Surface plasmon polaritons; Subwavelength; Metal slit Focusing |
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|
KeyWords Plus: PLASMONIC LENSES; VARIANT WIDTHS; NANO-SLITS; DESIGN; TRANSMISSION; LIGHT; DEVICE; OPTICS |
||||||
|
地址: [Jia, Sen; Si, Jinhai; Chen, Feng; Hou, Xun] Xi An Jiao Tong Univ, Minist Educ, Key Lab Phys Elect & Devices, Xian 710049, Peoples R China. |
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|
通讯作者地址: Si, JH (通讯作者),Xi An Jiao Tong Univ, Minist Educ, Key Lab Phys Elect & Devices, Xianning Xilu 28, Xian 710049, Peoples R China. |
||||||
|
电子邮件地址: jinhaisi@mail.xjtu.edu.cn |
||||||
|
出版商: ELSEVIER SCIENCE BV |
||||||
|
出版商地址: PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
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|
Web of Science 类别: Optics |
||||||
|
研究方向: Optics |
||||||
|
IDS 号: CT5PD |
||||||
|
ISSN: 0030-4018 |
||||||
|
eISSN: 1873-0310 |
||||||
|
29 字符的来源出版物名称缩写: OPT COMMUN |
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|
ISO 来源出版物缩写: Opt. Commun. |
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|
来源出版物页码计数: 5 |
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|
基金资助致谢: |
||||||
|
||||||
|
The authors gratefully acknowledge the financial support for this work provided by the National Basic Research Program of China (973 Program) under Grant no. 2012CB921804, and the National Natural Science Foundation of China under Grant nos. 61235003, 11404387 and 91123028. |
|
第 25 条，共 239 条 |
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|
标题: Coherence in ultrafast laser-induced periodic surface structures |
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|
作者: Zhang, H (Zhang, Hao); Colombier, JP (Colombier, Jean-Philippe); Li, C (Li, Chen); Faure, N (Faure, Nicolas); Cheng, GH (Cheng, Guanghua); Stoian, R (Stoian, Razvan) |
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|
来源出版物: PHYSICAL REVIEW B 卷: 92 期: 17 文献号: 174109 DOI: 10.1103/PhysRevB.92.174109 出版年: NOV 13 2015 |
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|
Web of Science 核心合集中的 "被引频次": 0 |
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|
被引频次合计: 0 |
||||||
|
使用次数 (最近 180 天): 15 |
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|
使用次数 (2013 年至今): 15 |
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|
摘要: Ultrafast laser irradiation can trigger anisotropically structured nanoscaled gratinglike arrangements of matter, the laser-induced periodic surface structures (LIPSSs). We demonstrate here that the formation of LIPSS is intrinsically related to the coherence of the laser field. Employing several test materials that allow large optical excursions, we observe the effect of randomizing spatial phase in generating finite domains of ripples. Using three-dimensional finite-difference time-domain methods, we evaluate energy deposition patterns below a material's rough surface and show that modulated pattern, i.e., a spatially ordered electromagnetic solution, results from the coherent superposition of waves. By separating the field scattered from a surface rough topography from the total field, the inhomogeneous energy absorption problem is reduced to a simple interference equation. We further distinguish the contribution of the scattered near field and scattered far field on various types of inhomogeneous energy absorption features. It is found that the inhomogeneous energy absorption which could trigger the low-spatial-frequency LIPSSs (LSFLs) and high-spatial-frequency LIPSSs (HSFLs) of periodicity Lambda > lambda/Re((n) over tilde) are due to coherent superposition between the scattered far field (propagation) and the refracted field, while HSFLs of Lambda > lambda/Re((n) over tilde) are triggered by coherent superposition between the scattered near field (evanescent) and the refracted field. This is a general scenario that involves a topography-induced scattering phenomenon and stationary evanescent fields, being applied to two model case materials that exhibit large optical excursions upon excitation (W, Si) and nonplasmonic to plasmonic transitions. We indicate the occurrence of a general light interference phenomenon that does not necessarily involve wavelike surface plasmonic excitation. Finally, we discuss the role of interference field and scattered field on the enhancement of LIPSSs by simulating interpulse feedback effects and provide the electromagnetic origin of grooves (Lambda > lambda) related to a feedback-driven topography evolution. Those results strongly suggest the electromagnetic interpretation of LIPSSs in interplay with an evolving surface topography. |
||||||
|
入藏号: WOS:000368094200001 |
||||||
|
语种: English |
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|
文献类型: Article |
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|
KeyWords Plus: FEMTOSECOND LASER; PULSES; ABLATION; RIPPLES; MORPHOLOGY; SILICON |
||||||
|
地址: [Zhang, Hao; Colombier, Jean-Philippe; Li, Chen; Faure, Nicolas; Stoian, Razvan] Univ St Etienne, Univ Lyon, UMR CNRS 5516, Lab Hubert Curien, F-42000 St Etienne, France. |
||||||
|
通讯作者地址: Zhang, H (通讯作者),Univ St Etienne, Univ Lyon, UMR CNRS 5516, Lab Hubert Curien, F-42000 St Etienne, France. |
||||||
|
电子邮件地址: zhterran@qq.com; razvan.stoian@univ-st-etienne.fr |
||||||
|
作者识别号: |
||||||
|
||||||
|
出版商: AMER PHYSICAL SOC |
||||||
|
出版商地址: ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
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|
Web of Science 类别: Physics, Condensed Matter |
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|
研究方向: Physics |
||||||
|
IDS 号: DA8YZ |
||||||
|
ISSN: 1098-0121 |
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|
eISSN: 1550-235X |
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|
29 字符的来源出版物名称缩写: PHYS REV B |
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|
ISO 来源出版物缩写: Phys. Rev. B |
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|
来源出版物页码计数: 14 |
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|
基金资助致谢: |
||||||
|
||||||
|
This work was supported by the French National Research Agency (ANR) project DYLIPSS (Project No. ANR-12-IS04-0002-01). C. Li acknowledges the financial support from China Scholarship Council. We are equally indebted to J. Tervo and O. Parriaux for their assistance in field coherence matters. |
|
第 26 条，共 239 条 |
|
标题: Effect of nano-sized cerium zirconium oxide solid solution on far-infrared emission properties of tourmaline powders |
|
作者: Guo, B (Guo, Bin); Yang, LQ (Yang, Liqing); Hu, WJ (Hu, Weijie); Li, WL (Li, Wenlong); Wang, HJ (Wang, Haojing) |
|
来源出版物: MODERN PHYSICS LETTERS B 卷: 29 期: 30 文献号: 1550183 DOI: 10.1142/S0217984915501833 出版年: NOV 10 2015 |
|
Web of Science 核心合集中的 "被引频次": 1 |
|
被引频次合计: 1 |
|
使用次数 (最近 180 天): 28 |
|
使用次数 (2013 年至今): 28 |
|
摘要: Far-infrared functional nanocomposites were prepared by the co-precipitation method using natural tourmaline (XY(3)Z(6)Si(6)O(18)(BO3)(3)V3W, where X is Na+, Ca2+, K+, or vacancy; Y is Mg2+, Fe2+, Mn2+, Al3+, Fe3+, Mn3+, Cr3+, Li+, or Ti4+; Z is Al3+, Mg2+, Cr3+, or V3+; V is O2-, OH-; and W is O2-, OH-, or F-) powders, ammonium cerium(IV) nitrate and zirconium(IV) nitrate pentahydrate as raw materials. The reference sample, tourmaline modified with ammonium cerium(IV) nitrate alone was also prepared by a similar precipitation route. The results of Fourier transform infrared spectroscopy show that tourmaline modified with Ce and Zr has a better far-infrared emission property than tourmaline modified with Ce alone. Through characterization by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), the mechanism for oxygen evolution during the heat process in the two composite materials was systematically studied. The XPS spectra show that Fe3+ ratio inside tourmaline modified with Ce alone can be raised by doping Zr. Moreover, it is showed that there is a higher Ce3+ ratio inside the tourmaline modified with Ce and Zr than tourmaline modified with Ce alone. In addition, XRD results indicate the formation of CeO2 and Ce1-xZrxO2 crystallites during the heat treatment and further TEM observations show they exist as nanoparticles on the surface of tourmaline powders. Based on these results, we attribute the improved far-infrared emission properties of Ce-Zr doped tourmaline to the enhanced unit cell shrinkage of the tourmaline arisen from much more oxidation of Fe2+ to Fe3+ inside the tourmaline caused by the change in the catalyst redox properties of CeO2 brought about by doping with Zr4+. In all samples, tourmaline modified with 7.14 wt.% Ce and 1.86 wt.% Zr calcined at 800 degrees C for 5 h has the best far-infrared emission property with the maximum emissivity value of 98%. |
|
入藏号: WOS:000364504900002 |
|
语种: English |
|
文献类型: Article |
|
作者关键词: Tourmaline; cerium-zirconium oxide solid solution; nanoparticle; far-infrared emission property; far-infrared functional nanocomposites; oxygen evolution |
|
KeyWords Plus: MINERAL COMPOSITE-MATERIALS; RARE-EARTH; OXIDATION CATALYSTS; HEAT-TREATMENT; RAYS |
|
地址: [Guo, Bin; Yang, Liqing; Hu, Weijie; Li, Wenlong; Wang, Haojing] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
|
通讯作者地址: Wang, HJ (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
|
电子邮件地址: hjwang@opt.ac.cn |
|
出版商: WORLD SCIENTIFIC PUBL CO PTE LTD |
|
出版商地址: 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE |
|
Web of Science 类别: Physics, Applied; Physics, Condensed Matter; Physics, Mathematical |
|
研究方向: Physics |
|
IDS 号: CV8CS |
|
ISSN: 0217-9849 |
|
eISSN: 1793-6640 |
|
29 字符的来源出版物名称缩写: MOD PHYS LETT B |
|
ISO 来源出版物缩写: Mod. Phys. Lett. B |
|
来源出版物页码计数: 11 |
|
第 27 条，共 239 条 |
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|
标题: Prediction of nested complementary pattern in argon dielectric-barrier discharge at atmospheric pressure |
||||||
|
作者: Jiang, WM (Jiang, Weiman); Li, J (Li, Jing); Tang, J (Tang, Jie); Wang, YS (Wang, Yishan); Zhao, W (Zhao, Wei); Duan, YX (Duan, Yixiang) |
||||||
|
来源出版物: SCIENTIFIC REPORTS 卷: 5 文献号: 16391 DOI: 10.1038/srep16391 出版年: NOV 10 2015 |
||||||
|
Web of Science 核心合集中的 "被引频次": 0 |
||||||
|
被引频次合计: 0 |
||||||
|
使用次数 (最近 180 天): 9 |
||||||
|
使用次数 (2013 年至今): 9 |
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摘要: A two-dimensional self-consistent fluid model was employed to investigate the spatiotemporal nonlinear behavior in an argon glow-like/Townsend-like dielectric-barrier discharge (DBD) at atmospheric pressure. The discharge is characterized by a major current pulse with a residual one ahead per half cycle of the external voltage. The two current pulses are operated in glow mode, but with Townsend mode between them. Contrasting spatial discharge structures are complementarily presented not only at two current pulses in the same half cycle but also during the discharge in the two adjacent-half cycles, resulting in the formation of a unique nested complementary pattern each cycle. This peculiar behavior mainly lies in the fact that sufficient charged particles are trapped in the gas gap due to the last discharge and able to dominate the subsequent discharge through the "spatial memory effect". The charge transport regime reveals that this nested complementary pattern is presented only in a limited range of driving frequency. |
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入藏号: WOS:000364380400001 |
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PubMed ID: 26552714 |
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语种: English |
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文献类型: Article |
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KeyWords Plus: GLOW-DISCHARGE; HELIUM; BEHAVIOR; SYSTEM; OXYGEN; AIR |
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地址: [Jiang, Weiman; Li, Jing; Tang, Jie; Wang, Yishan; Zhao, Wei; Duan, Yixiang] Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China. |
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通讯作者地址: Tang, J (通讯作者),Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China. |
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电子邮件地址: tangjie1979@opt.ac.cn |
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出版商: NATURE PUBLISHING GROUP |
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出版商地址: MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND |
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Web of Science 类别: Multidisciplinary Sciences |
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研究方向: Science & Technology - Other Topics |
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IDS 号: CV6KZ |
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ISSN: 2045-2322 |
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29 字符的来源出版物名称缩写: SCI REP-UK |
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ISO 来源出版物缩写: Sci Rep |
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来源出版物页码计数: 11 |
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基金资助致谢: |
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This work was financially supported by the China Postdoctoral Science Foundation (Grant No. 2012M512041) and the Natural Science Foundation of Shannxi Province, China (Grant No. 2015JM1019). |
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第 28 条，共 239 条 |
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标题: Nonlinear restoration of pulse and high noisy images via stochastic resonance |
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作者: Sun, QB (Sun, Qibing); Liu, HJ (Liu, Hongjun); Huang, N (Huang, Nan); Wang, ZL (Wang, Zhaolu); Han, J (Han, Jing); Li, SP (Li, Shaopeng) |
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来源出版物: SCIENTIFIC REPORTS 卷: 5 文献号: 16183 DOI: 10.1038/srep16183 出版年: NOV 4 2015 |
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Web of Science 核心合集中的 "被引频次": 1 |
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被引频次合计: 1 |
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使用次数 (最近 180 天): 10 |
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使用次数 (2013 年至今): 10 |
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摘要: We propose a novel scheme for restoring pulse and high noisy images using stochastic resonance, which is based on the modulation instability and provides a cross-correlation gain higher than 8. As opposed to previously reported designs, this unique approach employs a continuous noise and pulse signal for the generation of modulation instability. The visibility and quality of output images can be improved by appropriately adjusting the system parameters. This provides a simple and feasible method for detecting low-level or hidden pulse images in various imaging applications. |
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入藏号: WOS:000364091900001 |
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PubMed ID: 26530885 |
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语种: English |
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文献类型: Article |
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KeyWords Plus: MODULATION INSTABILITY; BEAMS; PROPAGATION; MEDIA |
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地址: [Sun, Qibing; Liu, Hongjun; Huang, Nan; Wang, Zhaolu; Han, Jing; Li, Shaopeng] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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通讯作者地址: Liu, HJ (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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电子邮件地址: liuhongjun@opt.ac.cn |
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作者识别号: |
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出版商: NATURE PUBLISHING GROUP |
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|
出版商地址: MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND |
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|
Web of Science 类别: Multidisciplinary Sciences |
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|
研究方向: Science & Technology - Other Topics |
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IDS 号: CV2MX |
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ISSN: 2045-2322 |
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|
29 字符的来源出版物名称缩写: SCI REP-UK |
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|
ISO 来源出版物缩写: Sci Rep |
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来源出版物页码计数: 6 |
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基金资助致谢: |
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|
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This research is supported by the National Nature Science Foundation of China under Grant 61178023 and 61275134. |
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第 29 条，共 239 条 |
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标题: WS2/fluorine mica (FM) saturable absorbers for all-normal-dispersion mode-locked fiber laser |
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作者: Li, L (Li, Lu); Jiang, SZ (Jiang, Shouzhen); Wang, YG (Wang, Yonggang); Wang, X (Wang, Xi); Duan, LN (Duan, Lina); Mao, D (Mao, Dong); Li, Z (Li, Zhen); Man, BY (Man, Baoyuan); Si, JH (Si, Jinhai) |
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来源出版物: OPTICS EXPRESS 卷: 23 期: 22 页: 28698-28706 DOI: 10.1364/OE.23.028698 出版年: NOV 2 2015 |
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|
Web of Science 核心合集中的 "被引频次": 1 |
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|
被引频次合计: 1 |
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使用次数 (最近 180 天): 16 |
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使用次数 (2013 年至今): 16 |
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|
摘要: The report firstly propose a new WS2 absorber based on fluorine mica (FM) substrate. The WS2 material was fabricated by thermal decomposition method. The FM was stripped into one single layer as thin as 20 mu m and deposited WS2 on it, which can be attached to the fiber flank without causing the laser deviation. Similar to quartz, the transmission rate of FM is as high as 90% at near infrared wavelength from one to two micrometers. Furthermore, FM is a highly elastic material so that it is not easy to break off even its thickness was only 20 mu m. On the contrary, quartz is hard to be processed and easy to break off when its thickness is less than 100 mu m. Compared to organic matrix such as polyvinyl alcohol (PVA), FM has higher softening temperature, heat dissipation and laser damage threshold than those of organic composites. In our work, the modulation depth (MD) and non-saturable losses (NLs) of this kind of saturable absorber were measured to be 5.8% and 14.8%, respectively. The WS2/FM absorber has a high damage threshold of 406 MW/cm(2), two times higher than that of WS2/PVA. By incorporating the saturable absorber into Yb-doped fiber laser cavity, a mode-locked fiber laser was achieved with central wavelength of 1052.45 nm. The repetition rate was 23.26 MHz and the maximum average output power was 30 mW. The long term stability of working was proved to be good too. The results indicate that WS2/FM film is a practical nonlinear optical material for photonic applications. (C) 2015 Optical Society of America |
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|
入藏号: WOS:000366578900058 |
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|
PubMed ID: 26561138 |
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|
语种: English |
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|
文献类型: Article |
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|
KeyWords Plus: MOLYBDENUM-DISULFIDE MOS2; EVANESCENT FIELD INTERACTION; WALL CARBON NANOTUBES; ULTRA-FAST PHOTONICS; DISSIPATIVE SOLITONS; FEMTOSECOND LASER; DISELENIDE MOSE2; WS2 NANOSHEETS; MU-M; YB |
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|
地址: [Li, Lu; Wang, Yonggang; Wang, Xi; Duan, Lina] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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|
通讯作者地址: Wang, YG (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
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|
电子邮件地址: chinawygxjw@opt.ac.cn |
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作者识别号: |
||||||
|
||||||
|
出版商: OPTICAL SOC AMER |
||||||
|
出版商地址: 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
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|
Web of Science 类别: Optics |
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|
研究方向: Optics |
||||||
|
IDS 号: CY7HJ |
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ISSN: 1094-4087 |
||||||
|
29 字符的来源出版物名称缩写: OPT EXPRESS |
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ISO 来源出版物缩写: Opt. Express |
||||||
|
来源出版物页码计数: 9 |
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|
基金资助致谢: |
||||||
|
||||||
|
This work was supported by National Natural Science Foundation of China under Grants 61378024. |
|
第 30 条，共 239 条 |
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标题: Compact multi-band fluorescent microscope with an electrically tunable lens for autofocusing |
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|
作者: Wang, ZJ (Wang, Zhaojun); Lei, M (Lei, Ming); Yao, BL (Yao, Baoli); Cai, Y (Cai, Yanan); Liang, YS (Liang, Yansheng); Yang, YL (Yang, Yanlong); Yang, XB (Yang, Xibin); Li, H (Li, Hui); Xiong, DX (Xiong, Daxi) |
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|
来源出版物: BIOMEDICAL OPTICS EXPRESS 卷: 6 期: 11 页: 4353-4364 DOI: 10.1364/BOE.6.004353 出版年: NOV 1 2015 |
||||||
|
Web of Science 核心合集中的 "被引频次": 0 |
||||||
|
被引频次合计: 0 |
||||||
|
使用次数 (最近 180 天): 10 |
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|
使用次数 (2013 年至今): 10 |
||||||
|
摘要: Autofocusing is a routine technique in redressing focus drift that occurs in time-lapse microscopic image acquisition. To date, most automatic microscopes are designed on the distance detection scheme to fulfill the autofocusing operation, which may suffer from the low contrast of the reflected signal due to the refractive index mismatch at the water/glass interface. To achieve high autofocusing speed with minimal motion artifacts, we developed a compact multi-band fluorescent microscope with an electrically tunable lens (ETL) device for autofocusing. A modified searching algorithm based on equidistant scanning and curve fitting is proposed, which no longer requires a single-peak focus curve and then efficiently restrains the impact of external disturbance. This technique enables us to achieve an autofocusing time of down to 170 ms and the reproductivity of over 97%. The imaging head of the microscope has dimensions of 12 cm x 12 cm x 6 cm. This portable instrument can easily fit inside standard incubators for real-time imaging of living specimens. (C) 2015 Optical Society of America |
||||||
|
入藏号: WOS:000366122400015 |
||||||
|
语种: English |
||||||
|
文献类型: Article |
||||||
|
KeyWords Plus: LIQUID-CRYSTAL; FOCUS |
||||||
|
地址: [Wang, Zhaojun; Lei, Ming; Yao, Baoli; Cai, Yanan; Liang, Yansheng; Yang, Yanlong] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
||||||
|
通讯作者地址: Wang, ZJ (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
||||||
|
电子邮件地址: leiming@opt.ac.cn; yaobl@opt.ac.cn |
||||||
|
出版商: OPTICAL SOC AMER |
||||||
|
出版商地址: 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA |
||||||
|
Web of Science 类别: Biochemical Research Methods; Optics; Radiology, Nuclear Medicine & Medical Imaging |
||||||
|
研究方向: Biochemistry & Molecular Biology; Optics; Radiology, Nuclear Medicine & Medical Imaging |
||||||
|
IDS 号: CY0UQ |
||||||
|
ISSN: 2156-7085 |
||||||
|
29 字符的来源出版物名称缩写: BIOMED OPT EXPRESS |
||||||
|
ISO 来源出版物缩写: Biomed. Opt. Express |
||||||
|
来源出版物页码计数: 12 |
||||||
|
基金资助致谢: |
||||||
|
||||||
|
This work was supported by Natural Science Foundation of China (NSFC) (61522511, 61275193, 81427802, 11404389), and the National Basic Research Program (973 Program) of China (2012CB921900). |
|
第 31 条，共 239 条 |
|
标题: Panoramic camera on the Yutu lunar rover of the Chang'e-3 mission |
|
作者: Yang, JF (Yang, Jian-Feng); Li, CL (Li, Chun-Lai); Xue, B (Xue, Bin); Ruan, P (Ruan, Ping); Gao, W (Gao, Wei); Qiao, WD (Qiao, Wei-Dong); Lu, D (Lu, Di); Ma, XL (Ma, Xiao-Long); Li, F (Li, Fu); He, YH (He, Ying-Hong); Li, T (Li, Ting); Ren, X (Ren, Xin); Yan, XT (Yan, Xing-Tao) |
|
来源出版物: RESEARCH IN ASTRONOMY AND ASTROPHYSICS 卷: 15 期: 11 页: 1867-1880 DOI: 10.1088/1674-4527/15/11/009 出版年: NOV 2015 |
|
Web of Science 核心合集中的 "被引频次": 0 |
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被引频次合计: 0 |
|
使用次数 (最近 180 天): 6 |
|
使用次数 (2013 年至今): 6 |
|
摘要: The Chang'e-3 panoramic camera, which is composed of two cameras with identical functions, performances and interfaces, is installed on the lunar rover mast. It can acquire 3D images of the lunar surface based on the principle of binocular stereo vision. By rotating and pitching the mast, it can take several photographs of the patrol area. After stitching these images, panoramic images of the scenes will be obtained. Thus the topography and geomorphology of the patrol area and the impact crater, as well as the geological structure of the lunar surface, will be analyzed and studied. In addition, it can take color photographs of the lander using the Bayer color coding principle. It can observe the working status of the lander by switching between static image mode and dynamic video mode with automatic exposure time. The focal length of the lens on the panoramic camera is 50 mm and the field of view is 19.7 degrees x 14.5 degrees. Under the best illumination and viewing conditions, the largest signal-to-noise ratio of the panoramic camera is 44 dB. Its static modulation transfer function is 0.33. A large number of ground testing experiments and on-orbit imaging results show that the functional interface of the panoramic camera works normally. The image quality of the panoramic camera is satisfactory. All the performance parameters of the panoramic camera satisfy the design requirements. |
|
入藏号: WOS:000365467400009 |
|
语种: English |
|
文献类型: Article |
|
作者关键词: Moon; methods: observational; techniques: image processing; high angular resolution |
|
KeyWords Plus: COLOR CALIBRATION |
|
地址: [Yang, Jian-Feng; Xue, Bin; Ruan, Ping; Gao, Wei; Qiao, Wei-Dong; Lu, Di; Ma, Xiao-Long; Li, Fu; He, Ying-Hong; Li, Ting; Yan, Xing-Tao] Chinese Acad Sci, Xian Inst Opt & Precis Mech, Lunar & Deep Space Explorat Technol Lab, Xian 710068, Peoples R China. |
|
通讯作者地址: Yang, JF (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, Lunar & Deep Space Explorat Technol Lab, Xian 710068, Peoples R China. |
|
电子邮件地址: ytop31@163.com |
|
出版商: NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
|
出版商地址: 20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA |
|
Web of Science 类别: Astronomy & Astrophysics |
|
研究方向: Astronomy & Astrophysics |
|
IDS 号: CX1PF |
|
ISSN: 1674-4527 |
|
29 字符的来源出版物名称缩写: RES ASTRON ASTROPHYS |
|
ISO 来源出版物缩写: Res. Astron. Astrophys. |
|
来源出版物页码计数: 14 |
|
第 32 条，共 239 条 |
||||||
|
标题: High-Pulse-Energy All-Normal-Dispersion Yb-Doped Fiber Laser Based on Nonlinear Polarization Evolution |
||||||
|
作者: Wang, JL (Wang Jun-Li); Wang, XL (Wang Xue-Ling); He, BR (He Bo-Rong); Wang, YG (Wang Yong-Gang); Zhu, JF (Zhu Jiang-Feng); Wei, ZY (Wei Zhi-Yi) |
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|
来源出版物: CHINESE PHYSICS LETTERS 卷: 32 期: 11 文献号: 114202 DOI: 10.1088/0256-307X/32/11/114202 出版年: NOV 2015 |
||||||
|
Web of Science 核心合集中的 "被引频次": 0 |
||||||
|
被引频次合计: 0 |
||||||
|
使用次数 (最近 180 天): 7 |
||||||
|
使用次数 (2013 年至今): 7 |
||||||
|
摘要: We report an all-normal-dispersion ytterbium fiber laser mode locked by nonlinear polarization evolution. With a 347-m-long all-fiber ring cavity, a pulse energy of 263 nJ at a repetition rate of 613 kHz is achieved, which is the highest per-pulse energy directly obtained from an all-fiber mode-locked laser doped by ytterbium ions. The compact and operation-robust laser yields a well-shaped spectrum centered at 1032nm with a bandwidth (FWHM) of 4 nm, and the slope efficiency is as high as 27.5%. The proposed low-repetition-rate high-pulse-energy mode-locked fiber laser will be a promising seed for all-fiber chirped pulsed amplification systems. |
||||||
|
入藏号: WOS:000365178900012 |
||||||
|
语种: English |
||||||
|
文献类型: Article |
||||||
|
KeyWords Plus: HARMONIC MODE-LOCKING; LOW-REPETITION-RATE; GENERATION; OSCILLATOR |
||||||
|
地址: [Wang Jun-Li; Wang Xue-Ling; He Bo-Rong; Zhu Jiang-Feng] Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Peoples R China. |
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|
通讯作者地址: Wang, JL (通讯作者),Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Peoples R China. |
||||||
|
电子邮件地址: dispersion@126.com |
||||||
|
作者识别号: |
||||||
|
||||||
|
出版商: IOP PUBLISHING LTD |
||||||
|
出版商地址: TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
||||||
|
Web of Science 类别: Physics, Multidisciplinary |
||||||
|
研究方向: Physics |
||||||
|
IDS 号: CW7KZ |
||||||
|
ISSN: 0256-307X |
||||||
|
eISSN: 1741-3540 |
||||||
|
29 字符的来源出版物名称缩写: CHINESE PHYS LETT |
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|
ISO 来源出版物缩写: Chin. Phys. Lett. |
||||||
|
来源出版物页码计数: 4 |
||||||
|
基金资助致谢: |
||||||
|
||||||
|
Supported by the National Key Scientific Instruments Development Program of China under Grant No 2012YQ120047. |
|
第 33 条，共 239 条 |
||||||
|
标题: Research progress of chelate precursor doping method to fabricate Yb-doped large-mode-area silica fibers for kW-level laser |
||||||
|
作者: Wang, Z (Wang, Zhen); Zhan, H (Zhan, Huan); Ni, L (Ni, Li); Peng, K (Peng, Kun); Wang, XL (Wang, Xiaolong); Wang, JJ (Wang, Jianjun); Jing, F (Jing, Feng); Lin, AX (Lin, Aoxiang) |
||||||
|
来源出版物: LASER PHYSICS 卷: 25 期: 11 文献号: 115103 DOI: 10.1088/1054-660X/25/11/115103 出版年: NOV 2015 |
||||||
|
Web of Science 核心合集中的 "被引频次": 1 |
||||||
|
被引频次合计: 1 |
||||||
|
使用次数 (最近 180 天): 6 |
||||||
|
使用次数 (2013 年至今): 6 |
||||||
|
摘要: With continuous efforts and practical managing experiences, the chelate precursor doping method has been justified as an effective way to dope rare-earth ions into silica host materials, a key technique in making large-mode-area silica fibers for high power laser applications. It is characterized by good controllability, stability and repeatability to accomplish different refractive index profiles. Different preforms with a large core, designed refractive index profile, good symmetrical shape and homogeneous elemental distribution were successfully fabricated. The home-made standard 20/400-type double-cladding Yb-doped large-mode-area silica fiber was drawn and presented a 1.6 kW laser output at 1064 nm, the highest power record publically reported with this method. With further optimization, chelate precusor doping method has potential to manufacture high power laser fibers for the next generation. |
||||||
|
入藏号: WOS:000365350800004 |
||||||
|
语种: English |
||||||
|
文献类型: Article |
||||||
|
作者关键词: fiber fabrication; chelate precursor doping method; fiber laser; ytterbium-doped fiber |
||||||
|
KeyWords Plus: OPTICAL-FIBERS; BRAGG FIBER; CORES; LAYER |
||||||
|
地址: [Wang, Zhen; Peng, Kun] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
||||||
|
通讯作者地址: Wang, Z (通讯作者),Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China. |
||||||
|
电子邮件地址: aoxiang.research@gmail.com |
||||||
|
出版商: IOP PUBLISHING LTD |
||||||
|
出版商地址: TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
||||||
|
Web of Science 类别: Optics; Physics, Applied |
||||||
|
研究方向: Optics; Physics |
||||||
|
IDS 号: CW9XF |
||||||
|
ISSN: 1054-660X |
||||||
|
eISSN: 1555-6611 |
||||||
|
29 字符的来源出版物名称缩写: LASER PHYS |
||||||
|
ISO 来源出版物缩写: Laser Phys. |
||||||
|
来源出版物页码计数: 6 |
||||||
|
基金资助致谢: |
||||||
|
||||||
|
This work was supported by grants No. 11474257 and No. 11404305 from the National Natural Science Foundation of China (NSFC), and fund No. 9140C680601130C68244 from Science and Technology on Plasma Physics Laboratory, China Academy of Engineering Physics (CAEP), China. All the results and the corresponding copyrights belong to Laser Fusion Research Center, CAEP, China. Great thanks should be given to Mr H Lin and Dr Z Huang for their supervision in MOPA setup. Among our research team, Mr Z Wang, Dr H Zhan and Mr L Ni cooperated closely to design fiber, fabricate fiber preform, draw fiber and preform laser output experiments, and therefore are regarded to contribute equally to this report. |
|
第 34 条，共 239 条 |
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标题: Robust Visual Tracking Using Structurally Random Projection and Weighted Least Squares |
|
作者: Zhang, SP (Zhang, Shengping); Zhou, HY (Zhou, Huiyu); Jiang, F (Jiang, Feng); Li, XL (Li, Xuelong) |
|
来源出版物: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 卷: 25 期: 11 页: 1749-1760 DOI: 10.1109/TCSVT.2015.2406194 出版年: NOV 2015 |
|
Web of Science 核心合集中的 "被引频次": 3 |
|
被引频次合计: 3 |
|
使用次数 (最近 180 天): 1 |
|
使用次数 (2013 年至今): 1 |
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摘要: Sparse representation-based visual tracking approaches have attracted increasing interests in the community in recent years. The main idea is to linearly represent each target candidate using a set of target and trivial templates, while imposing a sparsity constraint onto the representation coefficients. After we obtain the coefficients using l(1)-norm minimization methods, the candidate with the lowest error, when it is reconstructed using only the target templates and the associated coefficients, is considered as the tracking result. In spite of promising system performance widely reported, it is unclear if the performance of these trackers can be maximized. In addition, computational complexity caused by the dimensionality of the feature space limits these algorithms in real-time applications. In this paper, we propose a real-time visual tracking method based on structurally random projection (RP) and weighted least squares (WLS) techniques. In particular, to enhance the discriminative capability of the tracker, we introduce background templates to the linear representation framework. To handle appearance variations over time, we relax the sparsity constraint using a WLS method to obtain the representation coefficients. To further reduce the computational complexity, structurally RP is used to reduce the dimensionality of the feature space, while preserving the pairwise distances between the data points in the feature space. Experimental results show that the proposed approach outperforms several state-of-the-art tracking methods. |
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入藏号: WOS:000364230600003 |
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语种: English |
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文献类型: Article |
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作者关键词: Sparse representation; structural random projection (RP); visual tracking; weighted least squares (WLS) |
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KeyWords Plus: SPARSE APPEARANCE MODEL; OBJECT TRACKING; RANDOM MATRICES; DISCRIMINANT-ANALYSIS; REPRESENTATION; SELECTION; FUSION; FEATURES |
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地址: [Zhang, Shengping] Harbin Inst Technol Weihai, Sch Comp Sci & Technol, Weihai 264209, Peoples R China. |
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通讯作者地址: Zhang, SP (通讯作者),Harbin Inst Technol Weihai, Sch Comp Sci & Technol, Weihai 264209, Peoples R China. |
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电子邮件地址: s.zhang@hit.edu.cn; h.zhou@ecit.qub.ac.uk; fjiang@hit.edu.cn; xuelong_li@opt.ac.cn |
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出版商: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
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出版商地址: 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
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Web of Science 类别: Engineering, Electrical & Electronic |