Optimum parameters of image preprocessing method for Shack-Hartmann wavefront sensor in different SNR condition
文献类型：会议论文
| 作者 | Wei, Ping1,2,3,4; Li, Xinyang1,3; Luo, Xi1,3; Li, Jianfeng2 |
| 出版日期 | 2018 |
| 会议日期 | OCT 24-26, 2017OCT 24-26, 2017 |
| 会议地点 | Nanjing, PEOPLES R CHINANanjing, PEOPLES R CHINA |
| 关键词 | SH-WFS centroid method SNR Thresholding method Windowing method |
| 卷号 | 10697 |
| DOI | 10.1117/12.2315582 |
| 页码 | 1069742 |
| 英文摘要 | The centroid method is commonly adopted to locate the spot in the sub-apertures in the Shack-Hartmann wavefront sensor (SH-WFS), in which preprocessing image is required before calculating the spot location due to that the centroid method is extremely sensitive to noises. In this paper, the SH-WFS image was simulated according to the characteristics of the noises, background and intensity distribution. The Optimal parameters of SH-WFS image preprocessing method were put forward, in different signal-to-noise ratio (SNR) conditions, where the wavefront reconstruction error was considered as the evaluation index. Two methods of image preprocessing, thresholding method and windowing combing with thresholding method, were compared by studying the applicable range of SNR and analyzing the stability of the two methods, respectively. |
| 会议录 | Proceedings of SPIE - FOURTH SEMINAR ON NOVEL OPTOELECTRONIC DETECTION TECHNOLOGY AND APPLICATION
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| 文献子类 | C |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| WOS记录号 | WOS:000435407700132 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/9128]  |
| 专题 | 光电技术研究所_自适应光学技术研究室（八室） |
| 作者单位 | 1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China; 2.University of Electronic Science and Technology of China, Chengdu, Sichuan; 610054, China; 3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China; 4.University of Chinese Academy of Sciences, Beijing; 100049, China |
| 推荐引用方式 GB/T 7714 | Wei, Ping,Li, Xinyang,Luo, Xi,et al. Optimum parameters of image preprocessing method for Shack-Hartmann wavefront sensor in different SNR condition[C]. 见:. Nanjing, PEOPLES R CHINANanjing, PEOPLES R CHINA. OCT 24-26, 2017OCT 24-26, 2017. |
入库方式： OAI收割
来源：光电技术研究所
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