Haiyang Zheng, Yihan Luo, Tailin Li, Jiayao Tang, Yaqing Liu, Shiye Xia, Qiongyan Wu, Zongliang Xie. Confocal non-line-of-sight imaging based on spatial multiplexing detection[J]. Opto-Electronic Engineering, 2023, 50(5): 220256
- Opto-Electronic Engineering
- Vol. 50, Issue 5, 220256 (2023)
Fig. 1. Schematics of the experimental set-up for non-line-of-sight imaging
Fig. 2. Hadamard observation pattern and matrix. (a) Hadamard observation pattern; (b) Hadamard observation matrix
Fig. 3. Principle of spatial multiplexing detection non-line-of-sight imaging. (a) Original signal of each detection point; (b) Four kinds of measurement patterns obtained from Hadamard matrix; (c) Time photon histogram in each measurement mode; (d) Recover the signal of each detection point
Fig. 4. Experimental light path diagram
Fig. 5. Comparison of reconstruction results. (a) LCT algorithm reconstruction results; (b) BP algorithm reconstruction results
Fig. 6. Reconstruction results of 16×16 pixel values for different hidden objects. (a) Rectangle result reconstructed by LCT algorithm; (b) Rectangle result reconstructed by BP algorithm; (c) Triangle result reconstructed by LCT algorithm; (d) Triangle result reconstructed by BP algorithm
Fig. 7. The reconstruction result of the 8×8 pixel value of the triangular object. (a) Triangle result reconstructed by LCT algorithm; (b) Triangle result reconstructed by BP algorithm
Fig. 8. The reconstruction results of the LCT algorithm obtained with different laser intensities. (a) Reconstruction results with an average laser power of 750 mW; (b) Reconstruction results with an average laser power of 500 mW
Fig. 9. Reconstruction results of the LCT algorithm obtained by different sampling arrays. (a) Reconstruction result of the sampling array being16×16; (b) Reconstruction result of the sampling array being 8×8;
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20