• High Power Laser and Particle Beams
  • Vol. 35, Issue 7, 072002 (2023)
Kaitao Zheng1, Haiyan Li1、*, Huaquan Gan1, Yunbao Huang1, Yulong Li2, Longfei Jing2, Zanyang Guan2, Qingxin Huang1, and Yuanping Yu1
Author Affiliations
  • 1School of Mechanical and Electrical Engineering, Guangdong University of Technology, Guangzhou 510006, China
  • 2Laser Fusion Research Center, CAEP, Mianyang 621900, China
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    DOI: 10.11884/HPLPB202335.230011 Cite this Article
    Kaitao Zheng, Haiyan Li, Huaquan Gan, Yunbao Huang, Yulong Li, Longfei Jing, Zanyang Guan, Qingxin Huang, Yuanping Yu. CUP-VISAR image reconstruction based on low-rank prior and total-variation regularization[J]. High Power Laser and Particle Beams, 2023, 35(7): 072002 Copy Citation Text show less

    Abstract

    To solve the problem of reconstructing two-dimensional shock wave fringe from compressed image obtained from Compressed Ultrafast Photography (CUP) and two-dimensional Velocity Interferometer System for Any Reflector (VISAR), a compressed image reconstruction algorithm based on low-rank constraint and total-variation regularization is proposed. The algorithm uses the similarity and smoothness of the spatial structure of the fringe image to transform the reconstruction problem into an optimization problem of kernel norm minimization and total-variation regularization, and splits the optimization problem into multiple sub-problems using the plug-and-play alternate direction multiplier method to solve the optimization problem, thus realizing accurate reconstruction of the CUP-VISAR compressed image. The simulation results show that under the condition of high noise, the peak signal-to-noise ratio of the reconstructed image is increased by 8.45 dB, and the structural similarity is increased by 8.52%. The reconstruction effect is better than that of the mainstream reconstruction algorithm. The experimental results show that the relative error of the maximum velocity of the shock wave fringe is reduced from 13.5% to 3.46% (reduced by nearly 10%), which verifies the effectiveness of the algorithm.
    Kaitao Zheng, Haiyan Li, Huaquan Gan, Yunbao Huang, Yulong Li, Longfei Jing, Zanyang Guan, Qingxin Huang, Yuanping Yu. CUP-VISAR image reconstruction based on low-rank prior and total-variation regularization[J]. High Power Laser and Particle Beams, 2023, 35(7): 072002
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