[1] [1] A. Broggi, P. Grisleri and P. Zani, Sensors Technologies for Intelligent Vehicles Perception Systems: A Compar-ison between Vision and 3D-LIDAR, in 16th Interna-tional IEEE Conference on Intelligent Transportation Systems, 887 (2013).

[2] [2] B. Schwarz, Nat. Photonics 4, 429 (2010).

[3] [3] A. Halimi, A. Maccarone, A. McCarthy, S. McLaughlin and G. S. Buller, IEEE Transactions on Computational Imaging 3, 472 (2017).

[4] [4] P. Tarolli, Geomorphology 216, 295 (2014).

[5] [5] D. E. Smith, M. T. Zuber, G. B. Jackson, J. F. Cavanaugh, G. A. Neumann, H. Riris, X. Sun, R. S. Zellar, C. Coltharp, J. Connelly, R. B. Katz, I. Kleyner, P. Liiva, A. Matuszeski, E. M. Mazarico, J. F. McGarry, A.-M. Novo-Gradac, M. N. Ott, C. Peters, L. A. Ra-mos-Izquierdo, L. Ramsey, D. D. Rowlands, S. Schmidt, V. S. Scott, G. B. Shaw, J. C. Smith, J.-P. Swinski, M. H. Torrence, G. Unger, A. W. Yu and T. W. Zagwodzki, Space Sci. Rev. 150, 209 (2010).

[6] [6] A. Swatantran, H. Tang, T. Barrett, P. DeCola and R. Dubayah, Sci. Rep. 6, 28277 (2016).

[7] [7] M. S. Moussavi, W. Abdalati, T. Scambos and A. Neu-enschwander, Int. J. Remote Sens. 35, 5263 (2014).

[8] [8] H. Peng, Y. Wang, W. Meng, P. Yan, Z. Li, C. Li, H. Pan and G. Wu, Optoelectronics Letters 14, 129 (2018).

[9] [9] R. Tobin, A. Halimi, A. McCarthy, X. Ren, K. J. McEwan, S. McLaughlin and G. S. Buller, Optical En-gineering 57, 031303 (2017).

[10] [10] M. Henriksson, H. Larsson, C. Gr.nwall and G. Tolt, Optical Engineering 56, 031204 (2016).

[11] [11] A. M. Pawlikowska, A. Halimi, R. A. Lamb and G. S. Buller, Optics Express 25, 11919 (2017).

[12] [12] Y. Liang, J. Huang, M. Ren, B. Feng, X. Chen, E. Wu, G. Wu and H. Zeng, Opt. Express 22, 4662 (2014).

[13] [13] A. Maccarone, A. McCarthy, X. Ren, R. E. Warburton, A. M. Wallace, J. Moffat, Y. Petillot and G. S. Buller, Opt. Express 23, 33911 (2015).

[14] [14] Z. Li, E. Wu, C. Pang, B. Du, Y. Tao, H. Peng, H. Zeng and G. Wu, Opt. Express 25, 10189 (2017).

[15] [15] S. Jahromi, J. P. Jansson and J. Kostamovaara, Opt. Express 24, 21619 (2016).

[16] [16] C. Niclass, M. Soga, H. Matsubara, S. Kato and M. Kagami, IEEE Journal of Solid-State Circuits 48, 559 (2013).

[17] [17] A. McCarthy, X. Ren, A. Della Frera, Nathan R. Gem-mell, N. J. Krichel, C. Scarcella, A. Ruggeri, A. Tosi and G. S. Buller, Opt. Express 21, 22098 (2013).

[18] [18] C.I. Coleman, Advances in Electronics and Electron Physics 64, 649 (1985).