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Quantum Noise Simulations for a Synthetic Aperture X-Ray Telescope 合成孔径x射线望远镜的量子噪声模拟
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.md4
L. Mertz, G. Nakano, J. Kilner
{"title":"Quantum Noise Simulations for a Synthetic Aperture X-Ray Telescope","authors":"L. Mertz, G. Nakano, J. Kilner","doi":"10.1364/qlip.1986.md4","DOIUrl":"https://doi.org/10.1364/qlip.1986.md4","url":null,"abstract":"Quantum noise is examined for an imaging system where the photons are detected in the Fourier domain as opposed to the more familiar image domain.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"35 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":"122885963","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
Exact Variance-Stabilizing Transformations for Image-Signal-Dependent Exponential and Rayleigh Noise 图像信号相关指数和瑞利噪声的精确方差稳定变换
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.tud4
P. Prucnal, E. Goldstein
{"title":"Exact Variance-Stabilizing Transformations for Image-Signal-Dependent Exponential and Rayleigh Noise","authors":"P. Prucnal, E. Goldstein","doi":"10.1364/qlip.1986.tud4","DOIUrl":"https://doi.org/10.1364/qlip.1986.tud4","url":null,"abstract":"One problem presented by the processing of optical signals is that the noise encountered tends to be signal-dependent. Coherent sources, for example, generate photon noise characterized by variance that is proportional to the signal value. Sources emitting chaotic or superposed coherent and chaotic radiation exhibit photon noise variance that is quadratic in the signal value. For film-grain noise, the variance is proportional to some power of the signal. Other imaging devices such as optical disks exhibit noise having a similar signal-dependence.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"50 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":"123305822","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
Effect of Nonnegativity Constraints on Detectability 非负性约束对可探测性的影响
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.wb3
K. Hanson
{"title":"Effect of Nonnegativity Constraints on Detectability","authors":"K. Hanson","doi":"10.1364/qlip.1986.wb3","DOIUrl":"https://doi.org/10.1364/qlip.1986.wb3","url":null,"abstract":"It is demonstrated that under certain circumstances the use of a nonnegativity constraint in tomographic reconstruction from noisy projections can improve the detectability of objects.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"3 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":"133705671","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: 1
Fundamental Statistical Limitations to X-Ray Quantum Detection x射线量子探测的基本统计限制
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.tua2
R. Shaw, M. Rabbani
{"title":"Fundamental Statistical Limitations to X-Ray Quantum Detection","authors":"R. Shaw, M. Rabbani","doi":"10.1364/qlip.1986.tua2","DOIUrl":"https://doi.org/10.1364/qlip.1986.tua2","url":null,"abstract":"A model for the detective quantum efficiency (DQE) of a screen-film system has recently been developed1,2 which includes all the principle inefficiencies of both screen and film. Subsequent comparison of this model with detailed practical measurements has confirmed its power of prediction.3","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"129 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":"115079730","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
Photon Counting Imaging on the Space Telescope 空间望远镜上的光子计数成像
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.mb2
A. Boksenberg
{"title":"Photon Counting Imaging on the Space Telescope","authors":"A. Boksenberg","doi":"10.1364/qlip.1986.mb2","DOIUrl":"https://doi.org/10.1364/qlip.1986.mb2","url":null,"abstract":"Summary not available","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"5 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":"123178766","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
Photon-limited Scene Matching Using Histogram Analysis 使用直方图分析的光子限制场景匹配
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.tud3
D. Zweig, C. J. Morgan
{"title":"Photon-limited Scene Matching Using Histogram Analysis","authors":"D. Zweig, C. J. Morgan","doi":"10.1364/qlip.1986.tud3","DOIUrl":"https://doi.org/10.1364/qlip.1986.tud3","url":null,"abstract":"Owing to advances in photon detection, there is a developing interest in identifying objects from a limited number of photons. Such applications include astronomy, night vision, long-range target recognition and medical and industrial radiology. In each of these applications it is desirable to extract the maximum amount of information from a limited number of photons. In this paper, we propose a method for object recognition based on the formation of irradiance level histograms for a group of known objects. The technique is used to construct a binary histogram which requires fewer photons than a correlation filter to identify a particular object.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"171 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":"121623988","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
New Restoration Techniques for Images Degraded by Poisson Noise 泊松噪声退化图像的新恢复技术
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.wb4
Shiaw-Shiang Jiang, A. Sawchuk
{"title":"New Restoration Techniques for Images Degraded by Poisson Noise","authors":"Shiaw-Shiang Jiang, A. Sawchuk","doi":"10.1364/qlip.1986.wb4","DOIUrl":"https://doi.org/10.1364/qlip.1986.wb4","url":null,"abstract":"Under low light level conditions, photon noise is a fundamental limitation of detected images. Photon noise can be modeled as a Poisson point process given by (1) where f(i, j) is the original image, λ is a proportionality factor determining the SNR, and Poisson(·,·) is a Poisson random number generator. The probabilistic description of a Poisson process is given by (2) The normalized observation is given by (3) Eq. (3) can be rewritten as [1], [2] (4) where (5) is recognized as the noise part of the Poisson process.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"1 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":"125867226","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
Signal-to-Noise in Photon Counting Speckle Interferometry with Real Detectors 实探测器光子计数散斑干涉中的信噪比
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.mc3
S. Ebstein
{"title":"Signal-to-Noise in Photon Counting Speckle Interferometry with Real Detectors","authors":"S. Ebstein","doi":"10.1364/qlip.1986.mc3","DOIUrl":"https://doi.org/10.1364/qlip.1986.mc3","url":null,"abstract":"In speckle interferometry, one estimates the angular power spectrum of short-exposure images degraded by atmospheric turbulence. The power spectrum is a random process due to the variability of atmospheric conditions and due to the stochastic nature of photodetection.","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":"125374849","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: 1
Low Contrast Detection Limits of X-ray Screen-Film Imaging Systems x射线屏幕-胶片成像系统的低对比度检测极限
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.tua5
J. Motz, M. Danos
{"title":"Low Contrast Detection Limits of X-ray Screen-Film Imaging Systems","authors":"J. Motz, M. Danos","doi":"10.1364/qlip.1986.tua5","DOIUrl":"https://doi.org/10.1364/qlip.1986.tua5","url":null,"abstract":"The input signal to an x-ray imaging system is given1 by the quantity, α |X1-X2|, where α is the area of the spatial resolution element and X1 and X2 are the X-ray exposures at points 1 and 2 in the image plane. Accordingly for a signal with a given magnitude, there is a tradeoff in the values of α and |X1-X2| such that a signal with high spatial resolution (small α) and high'contrast (X2≪X1) may be quantitatively equivalent to a signal with low spatial resolution (large α) and low contrast (X2≲X1).","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"1 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":"130425086","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
Image Photon Counting Detectors 图像光子计数检测器
Topical Meeting on Quantum-Limited Imaging and Image Processing Pub Date : 1900-01-01 DOI: 10.1364/qlip.1986.ma2
C. Papaliolios
{"title":"Image Photon Counting Detectors","authors":"C. Papaliolios","doi":"10.1364/qlip.1986.ma2","DOIUrl":"https://doi.org/10.1364/qlip.1986.ma2","url":null,"abstract":"A comparison of four available detectors, the Boksenberg, the MAMA, the PAPA, and the resistive anode, point out the individual strengths and weakness.","PeriodicalId":174098,"journal":{"name":"Topical Meeting on Quantum-Limited Imaging and Image Processing","volume":"65 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":"114694085","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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