75 search results - page 13 / 15 » Eigen-Harmonics Faces: Face Recognition under Generic Lighti... |
ICCV
2001
IEEE
14 years 11 months ago
2001
IEEE
We prove that the set of all Lambertian reflectance functions (the mapping from surface normals to intensities) obtained with arbitrary distant light sources lies close to a 9D lin...
ICPR
2002
IEEE
14 years 2 months ago
2002
IEEE
Most eye trackers based on active IR illumination require distinctive bright pupil effect to work well. However, due to a variety of factors such as eye closure, eye occlusion, an...
ECCV
2006
Springer
14 years 11 months ago
2006
Springer
Abstract. We address the problem of comparing sets of images for object recognition, where the sets may represent arbitrary variations in an object's appearance due to changin...
ICCV
2003
IEEE
14 years 11 months ago
2003
IEEE
Under the Lambertian reflectance model, uncalibrated photometric stereo with unknown light sources is inherently ambiguous. In this paper, we consider the use of a more general re...
CVPR
2003
IEEE
14 years 11 months ago
2003
IEEE
For object recognition under varying illumination conditions, we propose a method based on photometric alignment. The photometric alignment is known as a technique that models bot...