| 基于压缩传感的光子计数成像系统 | |
| Alternative Title | Photon-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 | |
| Volume | 41Issue:2Pages:363-368 |
| ISSN | 1007-2276 |
| 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 Abstract | Based 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 By | EI ; CSCD |
| Funding Project | 中国科学院空间科学与应用研究中心 |
| Citation statistics |
Cited Times:5[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/3021 |
| Collection | 空间技术部 |
| Corresponding Author | dukeming2008@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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| 2012412363.pdf（674KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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