[1] Velten A, Willwacher T, Gupta O, et al. Recovering three-dimensional shape around a corner using ultrafast time-of-flight imaging[J]. Nat Commun, 2012, 3: 745.

[2] Laurenzis M, Velten A. Nonline-of-sight laser gated viewing of scattered photons[J]. Opt Eng, 2014, 53(2): 023102.

[3] Laurenzis M, Velten A. Feature selection and back-projection algorithms for nonline-of-sight laser–gated viewing[J]. J Electron Imaging, 2014, 23(6): 063003.

[4] Buttafava M, Zeman J, Tosi A, et al. Non-line-of-sight imaging using a time-gated single photon avalanche diode[J]. Opt Express, 2015, 23(16): 20997–21011.

[5] Arellano V, Gutierrez D, Jarabo A. Fast back-projection for non-line of sight reconstruction[J]. Opt Express, 2017, 25(10): 11574–11583.

[6] Jin C F, Xie J H, Zhang S Q, et al. Reconstruction of multiple non-line-of-sight objects using back projection based on ellipsoid mode decomposition[J]. Opt Express, 2018, 26(16): 20089–20101.

[7] Klein J, Peters C, Martín J, et al. Tracking objects outside the line of sight using 2D intensity images[J]. Sci Rep, 2016, 6(1): 32491.

[8] O'Toole M, Lindell D B, Wetzstein G. Confocal non-line-of-sight imaging based on the light-cone transform[J]. Nature, 2018, 555(7696): 338–341.

[9] Xin S M, Nousias S, Kutulakos K N, et al. A theory of Fermat paths for non-line-of-sight shape reconstruction[C]//Proceedings of 2019 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2019: 6800–6809.

[10] Liu X C, Guillén I, La Manna M, et al. Non-line-of-sight imaging using phasor-field virtual wave optics[J]. Nature, 2019, 572(7771): 620–623.

[11] Gariepy G, Tonolini F, Henderson R, et al. Detection and tracking of moving objects hidden from view[J]. Nat Photonics, 2016, 10(1): 23–26.

[12] Chan S S, Warburton R E, Gariepy G, et al. Non-line-of-sight tracking of people at long range[J]. Opt Express, 2017, 25(9): 10109–10117.