256 search results - page 6 / 52 » Modeling Geometric Structure and Illumination Variation of a... |
CVPR
2005
IEEE
14 years 9 months ago
2005
IEEE
The task of identifying 3D objects in 2D images is difficult due to variation in objects' appearance with changes in pose and lighting. The task is further complicated by the...
PG
2002
IEEE
14 years 16 days ago
2002
IEEE
We present a new method for the detection and estimation of multiple directional illuminants, using a single image of any object with known geometry and Lambertian reflectance. W...
TMI
2002
13 years 7 months ago
2002
An automatic cortical gray matter segmentation from a three-dimensional (3-D) brain images [magnetic resonance (MR) or computed tomography] is a well known problem in medical image...
CVPR
2011
IEEE
13 years 2 months ago
2011
IEEE
In this paper, we propose a novel framework to jointly recover the illumination environment and an estimate of the cast shadows in a scene from a single image, given coarse 3D geo...
ICCV
2003
IEEE
14 years 9 months ago
2003
IEEE
We derive a new class of photometric invariants that can be used for a variety of vision tasks including lighting invariant material segmentation, change detection and tracking, a...