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检索条件"主题词=Image processing algorithms"
650 条 记 录,以下是371-380 订阅
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Robust laser stripe extraction for three-dimensional reconstruction based on a cross-structured light sensor
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APPLIED OPTICS 2017年 第4期56卷 823-832页
作者: He, Leiying Wu, Shanshan Wu, Chuanyu Zhejiang Sci Tech Univ Fac Mech Engn & Automat Hangzhou 310018 Zhejiang Peoples R China
Cross-structured light sensor architecture for 3D reconstruction was established. An improved center of mass method was proposed for laser stripe extraction. For each initial laser stripe center point, the center of m... 详细信息
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Gas detection using absorption properties of liquid crystals
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OPTICS EXPRESS 2017年 第26期25卷 32532-32538页
作者: Wolowelsky, K. Gil, A. Elkabets, M. Rotschild, C. Technion Israel Inst Technol Fac Mech Engn Haifa Israel CI Syst Ltd Migdal Haemeq Israel
Optical gas imaging is critical for many applications, but its use is currently limited by complexity and cost. Here we experimentally demonstrate a low cost solution based on an alternating bispectral IR filter. This... 详细信息
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Spectroscopic super-resolution fluorescence cell imaging using ultra-small Ge quantum dots
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OPTICS EXPRESS 2017年 第4期25卷 4240-4253页
作者: Song, Mingying Karatutlu, Ali Ali, Isma Ersoy, Osman Zhou, Yun Yang, Yongxin Zhang, Yuanpeng Little, William R. Wheeler, Ann P. Sapelkin, Andrei V. Queen Mary Univ London Sch Phys & Astron London E1 4NS England Bursa Orhangazi Univ Elect & Elect Engn TR-16310 Bursa Turkey Kings Coll London Nikon Imaging Ctr London WC2R 2LS England Queen Mary Univ London Sch Elect Engn & Comp Sci London E1 4NS England Univ Edinburgh Inst Genet & Mol Med Edinburgh EH4 2XU Midlothian Scotland Edinburgh Super Resolut Interdisciplinary Consort Edinburgh EH4 2XU Midlothian Scotland
We demonstrate a spectroscopic imaging based super-resolution approach by separating the overlapping diffraction spots into several detectors during a single scanning period and taking advantage of the size-dependent ... 详细信息
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High-precision lateral distortion measurement and correction in coherence scanning interferometry using an arbitrary surface
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OPTICS EXPRESS 2017年 第16期25卷 18703-18712页
作者: Ekberg, Peter Su, Rong Leach, Richard KTH Royal Inst Technol Ind Metrol & Opt Prod Engn SE-10044 Stockholm Sweden Univ Nottingham Fac Engn Mfg Metrol Team Nottingham NG7 2RD England
Lateral optical distortion is present in most optical imaging systems. In coherence scanning interferometry, distortion may cause field-dependent systematic errors in the measurement of surface topography. These error... 详细信息
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Surface topography acquisition method for double-sided near-right-angle structured surfaces based on dual-probe wavelength scanning interferometry
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OPTICS EXPRESS 2017年 第20期25卷 24148-24156页
作者: Zhang, Tao Gao, Feng Jiang, Xiangqian Univ Huddersfield Huddersfield W Yorkshire England
This paper proposes an approach to measure double-sided near-right-angle structured surfaces based on dual-probe wavelength scanning interferometry (DPWSI). The principle and mathematical model is discussed and the me... 详细信息
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Demonstration of long-distance hazard-free wearable EEG monitoring system using mobile phone visible light communication
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OPTICS EXPRESS 2017年 第2期25卷 713-719页
作者: Rachim, Vega Pradana Jiang, Yubing Lee, Hyeon-Seok Chung, Wan-Young Pukyong Natl Univ Dept Elect Engn Busan 48513 South Korea
A wearable electroencephalogram (EEG) is a small mobile device used for long-term brain monitoring systems. Applications of these systems include fatigue monitoring, mental/emotional monitoring, and brain-computer int... 详细信息
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Single-photon three-dimensional imaging at up to 10 kilometers range
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OPTICS EXPRESS 2017年 第10期25卷 11919-11931页
作者: Pawlikowska, Agata M. Halimi, Abderrahim Lamb, Robert A. Buller, Gerald S. Leonardo MW Ltd Crewe Rd North Edinburgh EH5 2XS Midlothian Scotland Heriot Watt Univ Sch Engn & Phys Sci Inst Photon & Quantum Sci Edinburgh EH14 4AS Midlothian Scotland
Depth and intensity profiling of targets at a range of up to 10 km is demonstrated using time-of-flight time-correlated single-photon counting technique. The system comprised a pulsed laser source at 1550 nm wavelengt... 详细信息
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Exposure-fusion-based dot-grid image acquisition and recognition for sheet metal strain analysis
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APPLIED OPTICS 2017年 第35期56卷 9706-9715页
作者: Shi, Bao-Quan Zhang, Li-Kun Yao, Chen-Song Du, Shu-Xing Ye, JunJie Xidian Univ Minist Educ Key Lab Elect Equipment Struct Design Xian 710071 Shaanxi Peoples R China
Dot-grid images are usually captured for grid strain analysis during sheet metal forming. Due to the strong reflective characteristic of the metallic surfaces, the recorded dot-grid images often have poor quality, low... 详细信息
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Capillary red blood cell velocimetry by phase-resolved optical coherence tomography
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OPTICS LETTERS 2017年 第19期42卷 3976-3979页
作者: Tang, Jianbo Erdener, Sefik Evren Fu, Buyin Boas, David A. Harvard Med Sch Massachusetts Gen Hosp Athinoula A Martinos Ctr Biomed Imaging Charlestown MA 02129 USA Boston Univ Dept Biomed Engn Neurophoton Ctr Boston MA 02215 USA
We present a phase-resolved optical coherence tomography (OCT) method to extend Doppler OCT for the accurate measurement of the red blood cell (RBC) velocity in cerebral capillaries. OCT data were acquired with an M-m... 详细信息
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Advanced Infrared Technology and Applications: introduction
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APPLIED OPTICS 2018年 第18期57卷 AITA1-AITA4页
作者: Strojnik, Marija D'Acunto, Mario Rogalski, Antoni Mario D’Acunto Antoni Rogalski 10.1364/AO.57.0AITA1
This special issue of Applied Optics on Advanced Infrared Technology and Applications collects significantly expanded refereed papers presented at the conference of the same name, held in Quebec City, Canada, Sept. 27... 详细信息
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