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检索条件"主题词=Image Processing Algorithms"
650 条 记 录,以下是451-460 订阅
排序:
Simple and sensitive technique for alignment of the pinhole of a spatial filter of a high-energy, high-power laser system
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APPLIED OPTICS 2013年 第12期52卷 2546-2554页
作者: Sharma, Avnish Kumar Patidar, Rajesh Kumar Daiya, Deepak Joshi, Anandverdhan Naik, Prasad Anant Gupta, Parshotam Dass Raja Ramanna Ctr Adv Technol Laser Plasma Div Indore 452013 Madhya Pradesh India
In this paper, a new method for alignment of the pinhole of a spatial filter (SF) has been proposed and demonstrated experimentally. The effect of the misalignment of the pinhole on the laser beam profiles has been ca... 详细信息
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Accurate 3D tracking and size measurement of evaporating droplets using in-line digital holography and "inverse problems" reconstruction approach
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OPTICS EXPRESS 2013年 第23期21卷 27964-27980页
作者: Seifi, Mozhdeh Fournier, Corinne Grosjean, Nathalie Mees, Loic Marie, Jean-Louis Denis, Loic Univ Lyon F-42023 St Etienne France Univ St Etienne Telecom St Etienne Lab Hubert Curien CNRSUMR5516 F-42000 St Etienne France Univ Lyon 1 INSA Lyon CNRS Lab Mecan Fluides & AcoustUMR5509Ecole Cent Lyo F-69134 Ecully France
Digital in-line holography was used to study a fast dynamic 3D phenomenon: the evaporation of free-falling diethyl ether droplets. We describe an unsupervised reconstruction algorithm based on an "inverse problem... 详细信息
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Analysis of cellular objects through diffraction images acquired by flow cytometry
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OPTICS EXPRESS 2013年 第21期21卷 24819-24828页
作者: Zhang, Jun Feng, Yuanming Moran, Marina S. Lu, Jun Q. Yang, Li V. Sa, Yu Zhang, Ning Dong, Lixue Hu, Xin-Hua Tianjin Univ Dept Biomed Engn Tianjin 300072 Peoples R China Tianjin Med Univ Canc Inst & Hosp Dept Radiat Oncol Tianjin 300060 Peoples R China E Carolina Univ Dept Phys Greenville NC 27858 USA E Carolina Univ Brody Sch Med Dept Oncol Greenville NC 27834 USA
It was found that the diffraction images acquired along the side scattering directions with objects in a cell sample contain pattern variations at both the global and local scales. We show here that the global pattern... 详细信息
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Shutterless solution for simultaneous focal plane array temperature estimation and nonuniformity correction in uncooled long-wave infrared camera
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APPLIED OPTICS 2013年 第25期52卷 6266-6271页
作者: Cao, Yanpeng Tisse, Christel-Loic MTech Imaging Pte Ltd Singapore 499629 Singapore
In uncooled long-wave infrared (LWIR) microbolometer imaging systems, temperature fluctuations of the focal plane array (FPA) result in thermal drift and spatial nonuniformity. In this paper, we present a novel approa... 详细信息
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A real-time noise filtering strategy for photon counting 3D imaging lidar
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OPTICS EXPRESS 2013年 第8期21卷 9247-9254页
作者: Zhang, Zijing Zhao, Yuan Zhang, Yong Wu, Long Su, Jianzhong Harbin Inst Technol Dept Phys Harbin 150001 Peoples R China Tianjin Jinhang Inst Technol Phys Tianjin 300192 Peoples R China
For a direct-detection 3D imaging lidar, the use of Geiger mode avalanche photodiode (Gm-APD) could greatly enhance the detection sensitivity of the lidar system since each range measurement requires a single detected... 详细信息
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Gradient-based interpolation method for division-of-focal-plane polarimeters
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OPTICS EXPRESS 2013年 第1期21卷 1137-1151页
作者: Gao, Shengkui Gruev, Viktor Washington Univ Dept Comp Sci & Engn St Louis MO 63130 USA
Recent advancements in nanotechnology and nanofabrication have allowed for the emergence of the division-of-focal-plane (DoFP) polarization imaging sensors. These sensors capture polarization properties of the optical... 详细信息
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Lattice algebra approach to multispectral analysis of ancient documents
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APPLIED OPTICS 2013年 第4期52卷 674-682页
作者: Valdiviezo-N, Juan C. Urcid, Gonzalo Univ Politecn Tulancingo Div Ingn Tulancingo 43629 Hidalgo Mexico Inst Nacl Astrofis Opt & Electr Puebla 72000 Mexico
This paper introduces a lattice algebra procedure that can be used for the multispectral analysis of historical documents and artworks. Assuming the presence of linearly mixed spectral pixels captured in a multispectr... 详细信息
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PZT calibration
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OPTIK 2013年 第17期124卷 2803-2806页
作者: Ionita, Bogdan Florin Garoi, Florin Logofatu, Petre Catalin Apostol, Dan GSI Darmstadt Helmholtz Ctr Heavy Ion Res D-64220 Darmstadt Germany Natl Inst Laser Plasma & Radiat Phys Lasers Dept Magurele 077125 Romania
One important source of error in phase-shift interferometry consists of a nonuniform application of phase steps, due, for example, to a nonlinear piezoelectric effect in the phase shifter. We developed a method for in... 详细信息
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Demonstration of a multichannel, multiresolution imaging system
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APPLIED OPTICS 2013年 第24期52卷 6081-6089页
作者: Belay, Gebirie Y. Ottevaere, Heidi Meuret, Youri Vervaeke, Michael Van Erps, Jurgen Thienpont, Hugo Vrije Univ Brussel Dept Appl Phys & Photon TONA Fac Engn Brussels Photon Team B PHOT B-1050 Brussels Belgium
In conventional multichannel imaging systems, all channels have similar imaging properties [field-of-view (FOV) and angular resolution]. In our approach, channels are designed to have different imaging properties whic... 详细信息
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Restoring a silhouette of the hand in the problem of recognizing gestures by adaptive morphological filtering of a binary image
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JOURNAL OF OPTICAL TECHNOLOGY 2013年 第11期80卷 685-690页
作者: Malashin, R. O. Lutsiv, V. R. OAO SI Vavilov State Opt Inst St Petersburg Russia
algorithms are presented for the adaptive processing of binary images of silhouettes of the human hand obtained by means of color-brightness filters. These algorithms are based on the use of a combination of elementar... 详细信息
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