22 search results - page 2 / 5 » Lambertian Reflectance and Linear Subspaces |
ICCV
2005
IEEE
14 years 6 months ago
2005
IEEE
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...
Publication
Most conventional SFS (shape from shading) algorithms have been developed under three basic assumptions on surface properties and imaging geometry to simplify the problem, namely, ...
PAMI
2002
13 years 4 months ago
2002
We introduce a methodology for radiometric reconstruction, the simultaneous recovery of multiple illuminants and surface albedoes from multiple views, assuming that the geometry o...
ICCV
2009
IEEE
14 years 9 months ago
2009
IEEE
Scenes with cast shadows can produce complex sets of
images. These images cannot be well approximated by lowdimensional
linear subspaces. However, in this paper we
show that the...
CVPR
2007
IEEE
14 years 6 months ago
2007
IEEE
In this paper, we present a new method to change the illumination condition of a face image, with unknown face geometry and albedo information. This problem is particularly diffic...