65 search results - page 4 / 13 » Estimation of Illuminant Direction and Intensity of Multiple... |
CVPR
2007
IEEE
14 years 9 months ago
2007
IEEE
We present light fall-off stereo?LFS?a new method for computing depth from scenes beyond lambertian reflectance and texture. LFS takes a number of images from a stationary camera ...
PAMI
2006
13 years 7 months ago
2006
In this paper, we propose two novel methods for face recognition under arbitrary unknown lighting by using spherical harmonics illumination representation, which require only one t...
AVBPA
1997
Springer
13 years 11 months ago
1997
Springer
We suggest a novel attentional mechanism for detection of smooth convex and concave objects based on direct processing of intensity values. The operator detects the regions of the ...
CRV
2006
IEEE
14 years 1 months 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...
ICCV
1999
IEEE
14 years 9 months ago
1999
IEEE
This paper describes a new method for estimating the illumination distribution of a real scene from a radiance distribution inside shadows cast by an object in the scene. First, t...