190 search results - page 4 / 38 » Shape Estimation in Natural Illumination |
ICPR
2004
IEEE
14 years 8 months ago
2004
IEEE
In this paper, we propose a method for recovering the reflectance properties of a moving Lambertian object from an image sequence of the object taken by a fixed camera under unkno...
CVPR
1999
IEEE
14 years 9 months ago
1999
IEEE
The image irradiance of a three-dimensional object is known to be the function of three components: the distribution of light sources, the shape, and reflectance of a real object ...
CVPR
1998
IEEE
14 years 9 months ago
1998
IEEE
In this paper we present a method for the integration of nonlinear holonomic constraints in deformable models and its application to the problems of shape and illuminant direction...
ICCV
2007
IEEE
14 years 9 months ago
2007
IEEE
We address the problem of reconstructing the 3-D shape of a Lambertian surface from multiple images acquired as an object rotates under distant and possibly varying illumination. ...
ICCV
2011
IEEE
12 years 7 months ago
2011
IEEE
Global illumination effects such as inter-reflections and subsurface scattering result in systematic, and often significant errors in scene recovery using active illumination. R...