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Topical Meeting on Quantum-Limited Imaging and Image Processing最新文献

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Image Classification at Low Light Levels 微光下的图像分类
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1986-12-01 DOI: 10.1364/JOSAA.3.002179
M. Wernick, G. Morris
{"title":"Image Classification at Low Light Levels","authors":"M. Wernick, G. Morris","doi":"10.1364/JOSAA.3.002179","DOIUrl":"https://doi.org/10.1364/JOSAA.3.002179","url":null,"abstract":"At low light levels, a two-dimensional photon-counting detector may be employed to provide an estimate of the cross-correlation between an input image and a set of reference images stored in computer memory. Recent experiments1,2 have demonstrated that in many cases, a small number of detected photoevents is sufficient to yield reliable image recognition. The binary nature of the photon­limited input, coupled with the high rate of operation afforded by commercially available detectors, leads to recognition times on the order of tens of milliseconds.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"40 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115843406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
Pupil Plane versus Image Plane in Michelson Stellar Interferometry 迈克尔逊恒星干涉测量中的瞳孔面与像面
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1986-12-01 DOI: 10.1364/JOSAA.3.002160
F. Roddier
{"title":"Pupil Plane versus Image Plane in Michelson Stellar Interferometry","authors":"F. Roddier","doi":"10.1364/JOSAA.3.002160","DOIUrl":"https://doi.org/10.1364/JOSAA.3.002160","url":null,"abstract":"Following Michelson [1] original experiment, the beams from a stellar interferometer are generally combined in the image plane [2]. Interference fringes are observed when the images produced by each aperture are superimposed. The fringe spacing is set by the apparent angular distance between the apertures as seen from the image. It can be set to any value and is insensitive to image motion or guiding errors. A Fourier analysis of the image gives the energy at the fringe spatial frequency as an estimate for the square of the fringe visibility, filtering out the noise at all other spatial frequencies [3,4]. A drawback of this design is that the images do not always exactly coincide due to turbulence induced image motion or guiding errors thus randomly reducing the apparent fringe visibility and therefore decreasing the signal-to-noise ratio.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132893935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Photon Counting Array Detectors for the Fuse/Lyman Satellite Telescope 用于引信/莱曼卫星望远镜的光子计数阵列探测器
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1986-12-01 DOI: 10.1364/JOSAA.3.002146
E. Roberts, T. Stapinski, A. Rodgers
{"title":"Photon Counting Array Detectors for the Fuse/Lyman Satellite Telescope","authors":"E. Roberts, T. Stapinski, A. Rodgers","doi":"10.1364/JOSAA.3.002146","DOIUrl":"https://doi.org/10.1364/JOSAA.3.002146","url":null,"abstract":"The development and performance of advanced, multi-channel photon-counting detectors for the FUSE/Lyman satellite ultraviolet telescope is described.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114158491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Wedge and Strip Image Readout Systems for Photon Counting Detectors in Space Astronomy 空间天文学中光子计数探测器的楔形和条形图像读出系统
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1986-12-01 DOI: 10.1364/JOSAA.3.002139
O. Siegmund, M. Lampton, J. Bixler, S. Chakrabarti, J. Vallerga, S. Bowyer, R. Malina
{"title":"Wedge and Strip Image Readout Systems for Photon Counting Detectors in Space Astronomy","authors":"O. Siegmund, M. Lampton, J. Bixler, S. Chakrabarti, J. Vallerga, S. Bowyer, R. Malina","doi":"10.1364/JOSAA.3.002139","DOIUrl":"https://doi.org/10.1364/JOSAA.3.002139","url":null,"abstract":"We discuss the application of wedge and strip anodes to microchannel plate detector systems for extreme and far ultraviolet, and visible wavelengths. Performance data, obtained as a result of calibration of the Extreme Ultraviolet Explorer Satellite (EUVE) [1] detectors (open face) and the Faust-Spacelab far UV sensors [2] (sealed tube, proximity CsI cathode, Figure 1), is presented. The flexibility of anode design structures for differing applications and performance in terms of spatial resolution, image linearity and stability, counting rate capability, and small scale differential linearity and stability are considered.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125947383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 57
Miniature, Solid-State Photodetectors for Photon Correlation Spectroscopy and Laser Anemometry 用于光子相关光谱和激光风速测量的微型固态光电探测器
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1986-06-09 DOI: 10.1364/CLEO.1986.FE5
Robert G. Brown, K. Ridley
{"title":"Miniature, Solid-State Photodetectors for Photon Correlation Spectroscopy and Laser Anemometry","authors":"Robert G. Brown, K. Ridley","doi":"10.1364/CLEO.1986.FE5","DOIUrl":"https://doi.org/10.1364/CLEO.1986.FE5","url":null,"abstract":"The purpose of our investigations was to characterise cooled silicon avalanche photodiodes (APD) and assess their suitability as photon counting detectors for photon correlation laser anemometry and spectroscopy.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"269 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121219098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Origins of linear and nonlinear recursive restoration algorithms 线性和非线性递归恢复算法的起源
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1986-06-01 DOI: 10.1364/JOSAA.3.000787
E. Meinel
{"title":"Origins of linear and nonlinear recursive restoration algorithms","authors":"E. Meinel","doi":"10.1364/JOSAA.3.000787","DOIUrl":"https://doi.org/10.1364/JOSAA.3.000787","url":null,"abstract":"In a recent paper Frieden1 unified the theory behind many nonlinear image restoration methods. He proposed that these methods be implemented using the Newton-Raphson iterative approach. Although this approach is fast, exhibiting quadratic convergence, it requires complex programming and large core storage capabilities even for modest image sizes, unless the problem can be reduced to line-by-line processing2. By contrast, recursive or replacement formulas permit interactive processing with modest storage requirements, albeit with slower convergence. They can also be implemented on a specialized image processing computer since the formulas use only simple algebraic operations. These recursive algorithms also have the capability of immediate display of intermediate images, which is especially useful in interactive processing.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130467374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 122
Strip Beam Digital Radiography Using a Kinestatic Charge Detector 采用动态电荷检测器的带束数字射线照相
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.tua4
F. DiBianca, D. Wagenaar, J. E. Fetter, C. Tenney, M. Bolz, J. Vance, D. McDaniel, P. Granfors
{"title":"Strip Beam Digital Radiography Using a Kinestatic Charge Detector","authors":"F. DiBianca, D. Wagenaar, J. E. Fetter, C. Tenney, M. Bolz, J. Vance, D. McDaniel, P. Granfors","doi":"10.1364/qlip.1986.tua4","DOIUrl":"https://doi.org/10.1364/qlip.1986.tua4","url":null,"abstract":"The past decade has seen a marked increase in research on digital electronic detectors for x-radiographic imaging systems. This paper summarizes recent work on scanning strip detectors with emphasis on a new technique known as kinestatic charge detection (KCD). Principles of operation, theory and early experimental results are presented.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127081742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation Under Quantum-Limited Conditions* 量子有限条件下的估计*
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.wa1
D. Snyder, M. Miller
{"title":"Estimation Under Quantum-Limited Conditions*","authors":"D. Snyder, M. Miller","doi":"10.1364/qlip.1986.wa1","DOIUrl":"https://doi.org/10.1364/qlip.1986.wa1","url":null,"abstract":"The estimation of a signal from quantum-limited measurements of it is a problem arising in diverse scientific fields, including radionuclide imaging, electron-microscopic autoradiography, gamma-ray astronomy, optical communication, and low light-level photography. As the measurements become more quantum limited, it becomes increasingly important to use accurate mathematical models for the signal, noise, and measurement instrumentation and to use estimation approaches that are dictated by such models. In this paper, we describe a general random point­process model which accurately represents the characteristics of quantum-limited measurements in many situations. We then derive a method for realizing desired estimates within this model.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123832714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Use of Optical Dead-Time Effects for the Generation of Anti-Bunched and Sub-Poissonian Photo-Electron Statistics 利用光学死区时间效应生成反束和亚泊松光电子统计量
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.tuc2
E. Jakeman
{"title":"The Use of Optical Dead-Time Effects for the Generation of Anti-Bunched and Sub-Poissonian Photo-Electron Statistics","authors":"E. Jakeman","doi":"10.1364/qlip.1986.tuc2","DOIUrl":"https://doi.org/10.1364/qlip.1986.tuc2","url":null,"abstract":"A great deal of effort has been devoted during the last decade to the theory of nonclassical states of the radiation field. From a practical point of view some of the most interesting predictions of these theories concern the generation of light with sub-Poissonian photon counting statistics for which Such light is evidently less noisy than laser radiation with obvious implications for the improved performance of optical systems. When the temporal autocorrelation function of the photon counts increases as the delay time increases from zero the light is also said to be antibunched.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127948582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Restoration of Photon-Limited Images 光子有限图像的恢复
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.wb1
B. Frieden
{"title":"Restoration of Photon-Limited Images","authors":"B. Frieden","doi":"10.1364/qlip.1986.wb1","DOIUrl":"https://doi.org/10.1364/qlip.1986.wb1","url":null,"abstract":"Modern image detectors have attained the ultimate in sensitivity, enabling single-photon events to be seen. An array of such detectors may be used to form a \"photon count\" image, such as on the left in Fig. 1. If such a photo also suffers from blur, how well can it be restored to the ideal object on the right? We shall take a Bayesian1 view and seek the maximum probable (m.a.p.) and mean probable (m.m.s.e.) estimates of the object. This approach marries the known physics of photon image formation to estimation theory, a match which the Rev. Thomas Bayes himself might have blessed. As will be seen, it allows ultimate questions to be asked on object structure, even in cases of severe photon depletion.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"484 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120860379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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