“…The point clouds acquired with the depth sensor are defined in cartesian coordinates (x, y, z); these coordinates represent the surface of the scanned object or area. Depth-based systems have been used to solve neuro-rehabilitation problems [2,3], video conferencing system [4], facial recognition [5,6], extraction and recognition of human body movements [7][8][9][10], search, localization, and detection of objects [11][12][13][14], navigation [15][16][17], robotics [18][19][20][21], reconstruction [22][23][24][25], modeling of objects or surfaces [26][27][28][29][30][31][32], and plant monitoring [33][34][35][36][37][38][39][40][41][42].…”