Iwahori, Yuji; Kijsirikul, Boonserm; Usami, Hiroyasu; … - In: International Journal of Software Innovation (IJSI) 5 (2017) 2, pp. 33-54
equation considering two light sources. The procedures are as follows. First, obtain the initial depth distributions by … optimizing photometric equation obtained from two light sources. Next, obtain the surface normal vector from depth using …