Figure 4
From: Determination of the human spine curve based on laser triangulation
Back surface curvature calculation and all detected automatic curves. (a) Calculation of the back surface curvature based on the 3D measurement of the back. The bright areas represent positive curvature, and the dark areas represent negative curvature; (b) all detected curves that present possible candidates for the automatic curve. The white cross represents the appropriate curve, which was extracted in a single user mouse click.