Lambertian photometric stereo with unknown light source parameters is ambiguous. Provided that the object imaged constitutes a surface, the ambiguity is represented by the group o...
We describe an idea for making decomposition of Bidirectional Reflectance Distribution Functions into basis functions more efficient, by performing a change-of-variables transform...
Many previous works on photometric stereo have shown how to recover the shape and reflectance properties of an object using multiple images taken under a fixed viewpoint and variab...
Abstract. Rendering realistic faces and facial expressions requires good models for the reflectance of skin and the motion of the face. We describe a system for modeling, animating...
Stephen R. Marschner, Brian K. Guenter, Sashi Ragh...
- The challenges in modeling 3-D objects using facets and surface patches are investigated, and enhancement over the Gouraud's and Phong's interpolative shading is presen...