Sciweavers

217 search results - page 16 / 44
» Lights from Highlights and Shadows
Sort
View
CVPR
1999
IEEE
14 years 9 months ago
Separating Reflections and Lighting Using Independent Components Analysis
The image of an object can vary dramatically depending on lighting, specularities/reflections and shadows. It is often advantageous to separate these incidental variations from th...
Hany Farid, Edward H. Adelson
SIGGRAPH
1997
ACM
13 years 11 months ago
Fake fur rendering
A probabilistic lighting model is presented for thin coats of fur over skin. Previous methods for rendering furry objects and creatures have addressed the case where individual st...
Dan B. Goldman
ICCV
2007
IEEE
14 years 9 months ago
Toward Reconstructing Surfaces With Arbitrary Isotropic Reflectance : A Stratified Photometric Stereo Approach
We consider the problem of reconstructing the shape of a surface with an arbitrary, spatially varying isotropic bidirectional reflectance distribution function (BRDF), and introdu...
Neil G. Alldrin, David J. Kriegman
CVPR
2005
IEEE
13 years 9 months ago
Dense Photometric Stereo Using Tensorial Belief Propagation
We address the normal reconstruction problem by photometric stereo using a uniform and dense set of photometric images captured at fixed viewpoint. Our method is robust to spurio...
Kam-Lun Tang, Chi-Keung Tang, Tien-Tsin Wong
APGV
2008
ACM
141views Visualization» more  APGV 2008»
13 years 9 months ago
The assumed light direction for perceiving shape from shading
Recovering 3D shape from shading is an ill-posed problem that the visual system can solve only by making use of additional information such as the position of the light source. Pr...
James P. O'Shea, Martin S. Banks, Maneesh Agrawala