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基于压缩传感的光子计数成像系统
Alternative TitlePhoton-counting imaging system based on compressive sensing
杜克铭; 蒋远大; 陈颖; 王迪; 王超; 孙志斌; 翟光杰; dukeming2008@gmail.com; jzmz@vip.sina.com
Department空间技术部
Source Publication红外与激光工程
2012
Volume41Issue:2Pages:363-368
ISSN1007-2276
Language中文
Keyword光子计数成像 极弱光探测 压缩传感 稀疏重建
Abstract提出了一种基于压缩传感理论的光子计数成像系统。该系统以单光子计数器作为探测元件,以期在面元探测技术不甚成熟的现状下用点探测器进行极弱光探测。通过计算机模拟计算,验证了压缩传感理论结合单光子计数器应用于极弱光成像的可行性,讨论了单光子计数器的暗计数率、量子效率和测量噪声对成像质量的影响。介绍了压缩传感理论,为了获得更好的图像质量和更快的计算速度,提出了SpaRSA-DWT稀疏重建算法,并与传统的IWT算法进行对比。给出了两种算法下,迭代次数、测量数、噪声功率分别与获得图像信噪比的关系曲线,证明了SpaRSA-DWT算法的优越性。
Other AbstractBased on compressive sensing,a new photon-counting imaging system was proposed.Using single-photon counter as the detector,this point-type detector was used to detect ultralow light and obtain the two-dimensional image while the plane-type detector was not very developed.By performing simulation on the computer,the feasibility of the system was verified.The effects of the single-photon counter′s dark count rate,quantum efficiency and measurement noise on the quality of the obtained image were discussed.And compressive sensing theory was introduced.In order to obtain a better image and faster computing speed,a new image reconstruction algorithm,SpaRSA-DWT,was proposed.The experiment results show that SpaRSA-DWT needs less measurement and iteration times compared with the typical IWT algorithm,and is more robust to noise.
Indexed ByEI ; CSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3021
Collection空间技术部
Corresponding Authordukeming2008@gmail.com; jzmz@vip.sina.com
Recommended Citation
GB/T 7714
杜克铭,蒋远大,陈颖,等. 基于压缩传感的光子计数成像系统[J]. 红外与激光工程,2012,41(2):363-368.
APA 杜克铭.,蒋远大.,陈颖.,王迪.,王超.,...&jzmz@vip.sina.com.(2012).基于压缩传感的光子计数成像系统.红外与激光工程,41(2),363-368.
MLA 杜克铭,et al."基于压缩传感的光子计数成像系统".红外与激光工程 41.2(2012):363-368.
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