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;