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检索条件"主题词=image processing algorithms"
725 条 记 录,以下是501-510 订阅
Application of the Hough transform for the automatic determination of soot aggregate morphology
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APPLIED OPTICS 2012年 第5期51卷 610-620页
作者: Grishin, Igor Thomson, Kevin Migliorini, Francesca Sloan, James J. Univ Waterloo Waterloo ON N2L 3G1 Canada Natl Res Council Canada Ottawa ON K1A 0R6 Canada
We report a new method for automated identification and measurement of primary particles within soot aggregates as well as the sizes of the aggregates and discuss its application to high-resolution transmission electr... 详细信息
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High-precision camera distortion measurements with a "calibration harp"
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JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS image SCIENCE AND VISION 2012年 第10期29卷 2134-2143页
作者: Tang, Zhongwei von Gioi, Rafael Grompone Monasse, Pascal Morel, Jean-Michel Univ Minnesota Minneapolis MN 55455 USA Ecole Normale Super Ctr Math & Leurs Applicat F-94230 Cachan France Univ Paris Est Ecole Ponts ParisTech LIGM IMAGINE F-77455 Champs Sur Marne France
This paper addresses the high-precision measurement of the distortion of a digital camera from photographs. Traditionally, this distortion is measured from photographs of a flat pattern that contains aligned elements.... 详细信息
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Axial nanodisplacement measurement based on astigmatism effect of crossed cylindrical lenses
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APPLIED OPTICS 2012年 第13期51卷 2379-2387页
作者: Li, Long Kuang, Cuifang Luo, Ding Liu, Xu Zhejiang Univ State Key Lab Modern Opt Instrumentat Hangzhou 310027 Peoples R China
Spot distortion caused by astigmatism effect in orthogonal cylindrical lenses is utilized to measure axial displacement with 30 nm resolution, strong noise immunity, and compact experiment setup. Axial displacement of... 详细信息
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Reconstruction of three-dimensional chemiluminescence images with a maximum entropy deconvolution algorithm
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APPLIED OPTICS 2012年 第11期51卷 1671-1680页
作者: Gosselin, Kathryn R. Renfro, Michael W. Univ Connecticut Dept Mech Engn Storrs CT 06269 USA
Three-dimensional (3D) images of flame emission are reported using a single direction of optical access. A Cassegrain system was designed with narrow depth of field. images from this system are dominated by emission f... 详细信息
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Design of a multichannel, multiresolution smart imaging system
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APPLIED OPTICS 2012年 第20期51卷 4810-4817页
作者: Belay, Gebirie Y. Meuret, Youri Ottevaere, Heidi Veelaert, Peter Thienpont, Hugo Vrije Univ Brussel Fac Engn Dept Appl Phys & Photon TONA Brussels Photon TeamB PHOT B-1050 Brussels Belgium Univ Ghent B-9000 Ghent Belgium
This paper presents the design of a multichannel imaging system where the different optical channels have a different angular resolution and field-of-view. Such an imaging system is able to resolve fine details in a s... 详细信息
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Adaptive coded-aperture imaging with subpixel superresolution
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OPTICS LETTERS 2012年 第5期37卷 854-856页
作者: Slinger, Chris Bennett, Helen Dyer, Gavin Gordon, Neil Huckridge, David McNie, Mark Penney, Richard Proudler, Ian Rice, Kevin Ridley, Kevin Russell, Lee de Villiers, Geoffrey Watson, Philip Malvern Innovat The Elms Courtyard HR8 1RZ Bromesberrow England QinetiQ Ltd Great Malvern WR14 3PS Worcs England Goodrich ISR Syst Westford MA 01886 USA Cooke Opt Ltd Leicester LE4 8P Leics England
We describe an adaptive coded-aperture imager operating in the midwave IR. This consists of a coded-aperture mask, a set of optics, and a 4k x 4k focal plane array (FPA). This system can produce images with a resoluti... 详细信息
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Optical coherence tomography for quality assessment of embedded microchannels in alumina ceramic
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OPTICS EXPRESS 2012年 第4期20卷 4603-4618页
作者: Su, Rong Kirillin, Mikhail Ekberg, Peter Roos, Arne Sergeeva, Ekaterina Mattsson, Lars Royal Inst Technol Dept Prod Engn S-10044 Stockholm Sweden Inst Appl Phys RAS Lab Biophoton Nizhnii Novgorod 603950 Russia Uppsala Univ Angstrom Lab S-75121 Uppsala Sweden
Large-scale and cost-effective manufacturing of ceramic micro devices based on tape stacking requires the development of inspection systems to perform high-resolution in-process quality control of embedded manufacture... 详细信息
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Objective speckle velocimetry for autonomous vehicle odometry
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APPLIED OPTICS 2012年 第16期51卷 3478-3490页
作者: Francis, D. Charrett, T. O. H. Waugh, L. Tatam, R. P. Cranfield Univ Sch Engn Dept Engn Photon Bedford MK43 0AL England EADS Astrium Stevenage SG1 2AS Herts England
Speckle velocimetry is investigated as a means of determining odometry data with potential for application on autonomous robotic vehicles. The technique described here relies on the integration of translation measurem... 详细信息
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Selective polarization imager for contrast enhancements in remote scattering media
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APPLIED OPTICS 2012年 第18期51卷 4092-4102页
作者: Miller, Darren A. Dereniak, Eustace L. Univ Arizona Coll Opt Sci Tucson AZ 85721 USA
Conventional intensity imaging through turbid media suffers from rapid loss of image contrast due to light scattering from particles or random variations of refractive index. This paper features the development of an ... 详细信息
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Real-time concealed-object detection and recognition with passive millimeter wave imaging
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OPTICS EXPRESS 2012年 第9期20卷 9371-9381页
作者: Yeom, Seokwon Lee, Dong-Su Jang, YuShin Lee, Mun-Kyo Jung, Sang-Won Daegu Univ Div Comp & Commun Engn Gyongsan 712714 Gyeongbuk South Korea Samsung Thales Yongin 449885 South Korea
Millimeter wave (MMW) imaging is finding rapid adoption in security applications such as concealed object detection under clothing. A passive MMW imaging system can operate as a stand-off type sensor that scans people... 详细信息
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