158 search results - page 27 / 32 » Subpixel Photometric Stereo |
CVPR
2011
IEEE
13 years 4 months ago
2011
IEEE
The traditional shape-from-shading problem, with a single light source and Lambertian reflectance, is challenging since the constraints implied by the illumination are not suffi...
CVPR
2009
IEEE
15 years 3 months ago
2009
IEEE
We describe a novel device that can be used as a 2.5D
“scanner” for acquiring surface texture and shape. The device
consists of a slab of clear elastomer covered with a
refl...
CVPR
2006
IEEE
14 years 10 months ago
2006
IEEE
Given a dense set of imperfect normals obtained by photometric stereo or shape from shading, this paper presents an optimization algorithm which alternately optimizes until conver...
ECCV
2004
Springer
14 years 10 months ago
2004
Springer
Recently, a 3D face recognition approach based on geometric invariant signatures, has been proposed. The key idea is a representation of the facial surface, invariant to isometric ...
ECCV
2004
Springer
14 years 10 months ago
2004
Springer
We consider the problem of estimating the 3D shape and reflectance properties of an object made of a single material from a calibrated set of multiple views. To model reflectance, ...