55 search results - page 2 / 11 » A hierarchical illumination algorithm for surfaces with glos... |
SIGGRAPH
1995
ACM
13 years 9 months ago
1995
ACM
We present new techniques for computing illumination from non-diffuse luminaires and scattering from non-diffuse surfaces. The methods are based on new closed-form expressions d...
ICCV
2005
IEEE
14 years 7 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...
PAMI
2008
13 years 5 months ago
2008
This paper develops a theory of frequency domain invariants in computer vision. We derive novel identities using spherical harmonics, which are the angular frequency domain analog ...
ICCV
2001
IEEE
14 years 7 months ago
2001
IEEE
A framework for photo-realistic view-dependent image synthesis of a shiny object from a sparse set of images and a geometric model is proposed. Each image is aligned with the 3D m...
ECCV
2004
Springer
14 years 7 months ago
2004
Springer
We explore the possibility of recognizing the surface material from a single image with unknown illumination, given the shape of the surface. Model-based PCA is used to create a lo...