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Improving the image reconstruction quality of compressed ultrafast photography via an augmented Lagrangian algorithm
Yang, Chengshuai1; Qi, Dalong1; Cao, Fengyan1; He, Yilin1; Wang, Xing2; Wen, Wenlong2; Tian, Jinshou2; Jia, Tianqing1; Sun, Zhenrong1; Zhang, Shian1,3
Department精密物理量测量实验室
2019-03
Source PublicationJOURNAL OF OPTICS
ISSN2040-8978;2040-8986
Volume21Issue:3
Contribution Rank2
Abstract

Compressed ultrafast photography (CUP) has been shown to be a powerful tool to measure ultrafast dynamic scenes. In previous studies, CUP used a two-step iterative shrinkage/thresholding (TwIST) algorithm to reconstruct three-dimensional image information. However, the image reconstruction quality greatly depended on the selection of the penalty parameter, which caused the reconstructed images to be unable to be correctly determined if the ultrafast dynamic scenes were unknown in advance. Here, we develop an augmented Lagrangian (AL) algorithm for the image reconstruction of CUP to overcome the limitation of the TwIST algorithm. Our numerical simulations and experimental results show that, compared to the TwIST algorithm, the AL algorithm is less dependent on the selection of the penalty parameter, and can obtain higher image reconstruction quality. This study solves the problem of the image reconstruction instability, which may further promote the practical applications of CUP.

Keywordcompressed ultrafast photography computational imaging compressed sensing augmented Lagrangian
DOI10.1088/2040-8986/ab00d9
Indexed BySCI ; EI
Language英语
WOS IDWOS:000458924300001
PublisherIOP PUBLISHING LTD
EI Accession Number20191506771875
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31172
Collection精密物理量测量实验室
Corresponding AuthorZhang, Shian
Affiliation1.East China Normal Univ, Sch Phys & Mat Sci, State Key Lab Precis Spect, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Key Lab Ultra Fast Photoelect Diagnost Technol, Xian 710119, Shaanxi, Peoples R China
3.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, 92 Wucheng Rd, Taiyuan 030006, Peoples R China
Recommended Citation
GB/T 7714
Yang, Chengshuai,Qi, Dalong,Cao, Fengyan,et al. Improving the image reconstruction quality of compressed ultrafast photography via an augmented Lagrangian algorithm[J]. JOURNAL OF OPTICS,2019,21(3).
APA Yang, Chengshuai.,Qi, Dalong.,Cao, Fengyan.,He, Yilin.,Wang, Xing.,...&Zhang, Shian.(2019).Improving the image reconstruction quality of compressed ultrafast photography via an augmented Lagrangian algorithm.JOURNAL OF OPTICS,21(3).
MLA Yang, Chengshuai,et al."Improving the image reconstruction quality of compressed ultrafast photography via an augmented Lagrangian algorithm".JOURNAL OF OPTICS 21.3(2019).
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