48 search results - page 5 / 10 » Shape from Shading Under Coplanar Light Sources |
ICCV
2011
IEEE
13 years 9 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...
CVPR
2004
IEEE
15 years 11 months ago
2004
IEEE
We propose a variational algorithm to jointly estimate the shape, albedo, and light configuration of a Lambertian scene from a collection of images taken from different vantage po...
PAMI
2006
14 years 9 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...
ICRA
2007
IEEE
15 years 3 months ago
2007
IEEE
— In this paper, we propose an original approach to control camera position and/or lighting conditions in an environment using image gradient information. Our goal is to ensure a...
CAE
2010
14 years 4 months ago
2010
We present a method for drawing lines on an object that depict both the shape and shading of the object. To do so, we construct a gradient field of the diffuse intensity of the su...