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Sub-diffraction visible imaging using macroscopic fourier ptychography and regularization by denoising
Li, Zhixin1,2; Wen, Desheng1; Song, Zongxi1; Liu, Gang1,2; Zhang, Weikang1,2; Wei, Xin1,2
Department空间光学应用研究室
2018-09-18
Source PublicationSensors (Switzerland)
ISSN14248220
Volume18Issue:9
Contribution Rank1
Abstract

Imaging past the diffraction limit is of significance to an optical system. Fourier ptychography (FP) is a novel coherent imaging technique that can achieve this goal and it is widely used in microscopic imaging. Most phase retrieval algorithms for FP reconstruction are based on Gaussian measurements which cannot extend straightforwardly to long range, sub-diffraction imaging setup because of laser speckle noise corruption. In this work, a new FP reconstruction framework is proposed for macroscopic visible imaging. When compared with existing research, the reweighted amplitude flow algorithm is adopted for better signal modeling, and the Regularization by Denoising (RED) scheme is introduced to reduce the effects of speckle. Experiments demonstrate that the proposed method can obtain state-of-the-art recovered results on both visual and quantitative metrics without increasing computation cost, and it is flexible for real imaging applications. © 2018 by the authors. Licensee MDPI, Basel, Switzerland.

KeywordSub-diffraction Visible Imaging Computational Imaging Fourier Ptychography Phase Retrieval Fourier Optics And Signal Processing
DOI10.3390/s18093154
Indexed BySCI ; EI
Language英语
WOS IDWOS:000446940600413
PublisherMDPI AG, Postfach, Basel, CH-4005, Switzerland
EI Accession Number20183905862054
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30655
Collection空间光学应用研究室
Corresponding AuthorSong, Zongxi
Affiliation1.Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Li, Zhixin,Wen, Desheng,Song, Zongxi,et al. Sub-diffraction visible imaging using macroscopic fourier ptychography and regularization by denoising[J]. Sensors (Switzerland),2018,18(9).
APA Li, Zhixin,Wen, Desheng,Song, Zongxi,Liu, Gang,Zhang, Weikang,&Wei, Xin.(2018).Sub-diffraction visible imaging using macroscopic fourier ptychography and regularization by denoising.Sensors (Switzerland),18(9).
MLA Li, Zhixin,et al."Sub-diffraction visible imaging using macroscopic fourier ptychography and regularization by denoising".Sensors (Switzerland) 18.9(2018).
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