| Department | 自适应光学技术研究室（八室） |
| Optimum parameters of image preprocessing method for Shack-Hartmann wavefront sensor in different SNR condition | |
| Wei, Ping1,2,3,4; Li, Xinyang1,3; Luo, Xi1,3; Li, Jianfeng2 | |
| Source Publication | Proceedings of SPIE - FOURTH SEMINAR ON NOVEL OPTOELECTRONIC DETECTION TECHNOLOGY AND APPLICATION |
| Volume | 10697 |
| Pages | 1069742 |
| 2018 | |
| Language | 英语 |
| ISSN | 0277-786X |
| DOI | 10.1117/12.2315582 |
| Indexed By | SCI ; Ei |
| WOS ID | WOS:000435407700132 |
| EI Accession Number | 20182805540044 |
| Subtype | C |
| Abstract | 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. |
| Keyword | SH-WFS centroid method SNR Thresholding method Windowing method |
| EI Keywords | Adaptive optics ; Electric appliances ; Image processing ; Underwater acoustics ; Wavefronts |
| Conference Name | 4th Seminar on Novel Optoelectronic Detection Technology and Application4th Seminar on Novel Optoelectronic Detection Technology and Application |
| Conference Date | OCT 24-26, 2017OCT 24-26, 2017 |
| Conference Place | Nanjing, PEOPLES R CHINANanjing, PEOPLES R CHINA |
| EI Classification Number | 704.2 Electric Equipment ; 716.1 Information Theory and Signal Processing ; 741.1 Light/Optics ; 751.1 Acoustic Waves |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/9128 |
| Collection | 自适应光学技术研究室（八室） |
| Affiliation | 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 |
| Recommended Citation 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],2018:1069742. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2018-2152.pdf（612KB） | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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