1595 search results - page 126 / 319 » Spherical Topic Models |
250
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CVPR
2009
IEEE
17 years 1 months ago
2009
IEEE
Estimating the illumination and the reflectance properties
of an object surface from a sparse set of images is an
important but inherently ill-posed problem. The problem
becomes...
195
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CVPR
2007
IEEE
16 years 8 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...
202
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ICCV
2001
IEEE
16 years 8 months ago
2001
IEEE
We prove that the set of all Lambertian reflectance functions (the mapping from surface normals to intensities) obtained with arbitrary distant light sources lies close to a 9D lin...
163
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ICCV
1999
IEEE
16 years 8 months ago
1999
IEEE
The notion of a virtual sensor for optimal 3D reconstruction is introduced. Instead of planar perspective images that collect many rays at a fixed viewpoint, omnivergent cameras c...
173
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ICIP
2006
IEEE
16 years 8 months ago
2006
IEEE
Though implicit representations of surfaces have often been used for various computer graphics tasks like modeling and morphing of objects, it has rarely been used for registratio...