High Power Laser and Particle Beams, Volume. 37, Issue 2, 022002(2025)
CUP-VISAR image reconstruction based on iterative-interframe double prediction
CUP-VISAR system is a new technology that combines Compressed Ultrafast Photography (CUP) with two-dimensional Velocity Interferometer System for Any Reflector (VISAR). To solve the problem that the image reconstruction quality of CUP-VISAR system decreases obviously under the condition of large noise, a compressed ultrafast photography reconstruction method based on iteration-interframe dual prediction is proposed. Using this method, the correlation of inter-frame image data and the correlation of iterations before and after the same frame image are studied. The compressed image reconstruction problem is presented as an iteration-inter frame dual prediction optimization problem based on Kalman prediction and inter-frame prediction, and the Plug-and-Play Generalized Alternating Projection (PnP-GAP) framework is used to solve the optimization problem effectively. Simulation results show that the minimum Peak Signal-to-Noise Ratio (PSNR) and minimum Structure Similarity Index Measure (SSIM) of the proposed method are increased by 3.18-2.11 dB and 20.30%-8.22% under large Gaussian noise conditions. The practical results show that the proposed method can obtain higher definition of fringe image, and the reconstructed line-VISAR (1D-VISAR) fringe movement trend is clearer, which verifies the effectiveness of the algorithm.
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Yilan Wen, Haiyan Li, Huaquan Gan, Yunbao Huang, Feng Wang, Yulong Li, Zanyang Guan, Yuanping Yu, Qingxin Huang, Kaitao Zheng. CUP-VISAR image reconstruction based on iterative-interframe double prediction[J]. High Power Laser and Particle Beams, 2025, 37(2): 022002
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Received: Aug. 3, 2024
Accepted: Dec. 23, 2024
Published Online: Mar. 25, 2025
The Author Email: Li Haiyan (cathylhy@gdut.edu.cn)