Figure 2.

Skin sample (pig skin from an animal killed for nutritional purposes) illustrating the non-suitability of realistic skin samples for benchmarking 3D scanner resolution for rough surfaces. Photographs showing decay 3 days (a) and 6 days (b) post mortem. QTSculptor derived 3D surface scans at 3 days (c) and 6 days (d) (bar 1 cm) post mortem provide surfaces of similar appearance, but even at good overlap positioning a distance map (e) between the two digitized surfaces shows they are not congruent with patches of divergence exceeding 2 mm.