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Modified phase diversity technique to eliminate Poisson noise for reconstructing high-resolution images
Zhang, Ling1,2; Zhao, Hui1; Yi, Hongwei1; Fan, Xuewu1; Xie, Xiaopeng1,2
2019
Conference Name9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, AOMATT 2018
Source Publication9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Volume10838
Conference Date2018-06-26
Conference PlaceChengdu, China
PublisherSPIE
Contribution Rank1
AbstractPhase diversity technique (PD) is a widely known method to estimate wave-front aberration of optical imaging system and to obtain reconstructed high-resolution image after degradation. However, when detecting weak or low light object in space, Poisson noise, as the main source of noise, has a serious impact on the accuracy of the PD's two main function. Hence, we firstly propose a modified PD combined with Non-local Means (NLM) algorithm to reduce the sensitivity of PD towards the Poisson noise. The numerical simulations demonstrate that our approach compared with the traditional PD has a significant improvement in terms of both the wave-front residual root-mean-square error (RMS) and the structural similarity index metrics (SSIM). The wave-front residual RMS decreases by approximately 51% across the Poisson noise levels ranging from 24.48 dB to 61.02 dB. The overall decline range of SSIM significantly decreases from 47% to 17%, and the average of SSIM increases from 84% to 91%. The modified PD would be useful in the AO system with active Poisson noise. © 2019 COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
Department空间光学应用研究室
DOI10.1117/12.2505019
Indexed ByEI
ISBN9781510623187
Language英语
ISSN0277786X;1996756X
EI Accession Number20190506430680
Citation statistics
Document Type会议论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31217
Collection空间光学应用研究室
Affiliation1.Space Optics Lab, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an; 710019, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Zhang, Ling,Zhao, Hui,Yi, Hongwei,et al. Modified phase diversity technique to eliminate Poisson noise for reconstructing high-resolution images[C]:SPIE,2019.
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