The Kinect instruments were calibrated according to the procedures described in the Materials and Methods section. Table 1 reports the main scanning performance parameters in terms of lateral range (i.e.,the length and the width of the measured area) and resolution (i.e., the minimum resolvable separation between two pixels), the vertical resolution (i.e., the minimum resolvable depth) and the curvature deviation (i.e., the relative standard deviation of the measured curvatures from the calibrated curvatures).