Fig. 1. Results of photon waveform recovery with low and high fluxes. (a) Low flux; (b) high flux

Fig. 2. Reconstruction of distance and intensity values with errors for signal flux ranging from 0.01 to 10. (a) Distance values and the error; (b) intensity values and the error

Fig. 3. Comparison of reconstructed range profiles between the proposed PWR algorithm and the UOS algorithm. (a) Photograph of the target; (b) true range profile of the target; (c) range profile reconstructed by PWR under low flux (LF); (d) range profile reconstructed by UOS under low flux; (e) range profile reconstructed by PWR under medium flux (MF); (f) range profile of UOS reconstruction under medium flux; (g) range profiles reconstructed by PWR under high flux (HF); (h) range profile reconstructed by UOS under high flux

Fig. 4. Comparison of reconstructed intensity images between the proposed PWR algorithm and the UOS algorithm. (a) True intensity image of the target; (b) intensity image reconstructed by PWR under low flux; (c) intensity image reconstructed by UOS under low flux; (d) intensity image reconstructed by PWR under medium flux; (e) intensity image reconstructed by UOS under medium flux; (f) intensity images reconstructed by PWR under high flux; (g) intensity image reconstructed by UOS under high flux