28 search results - page 3 / 6 » Photometric Stereo with General, Unknown Lighting |
CVPR
2007
IEEE
14 years 8 months ago
2007
IEEE
It is well known in the photometric stereo literature that uncalibrated photometric stereo, where light source strength and direction are unknown, can recover the surface geometry...
ICCV
2005
IEEE
14 years 8 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...
CVPR
2012
IEEE
11 years 8 months ago
2012
IEEE
We present a photometric stereo technique that operates on time-lapse sequences captured by static outdoor webcams over the course of several months. Outdoor webcams produce a lar...
CRV
2006
IEEE
14 years 14 days ago
2006
IEEE
This paper considers the problem of shape-from-shading using nearby planar distributed illuminants. It is shown that a rectangular planar nearby distributed uniform isotropic illu...
ECCV
2010
Springer
13 years 9 months ago
2010
Springer
We propose a novel algorithm for uncalibrated photometric stereo. While most of previous methods rely on various assumptions on scene properties, we exploit constraints in lighting...