Fig. 5From: Numerical shape-from-shading revisitedComparison of INSIDE relaxation with P-SFS and XIONG. From left to right, the surface normal maps of the ground truth, (a) INSIDE with boundary conditions, (b) INSIDE without boundary conditions, (c) P-SFS method, and (d) XIONG method are shown. “(b) - aligned” and “(c) - aligned” are the results of (b) and (c) aligned to the ground truth. Resulting mean angular errors are shown in the bottomBack to article page