300 search results - page 4 / 60 » Directionally Dependent Light Sources |
ICPR
2006
IEEE
14 years 11 months ago
2006
IEEE
Recovering multiple point light sources from a sparse set of photographs in which objects of unknown texture can move is challenging. This is because both diffuse and specular ref...
CVPR
2006
IEEE
14 years 11 months ago
2006
IEEE
We propose a new approach called "appearance clustering" for scene analysis. The key idea in this approach is that the scene points can be clustered according to their s...
ECCV
2008
Springer
14 years 11 months ago
2008
Springer
This paper introduces a novel method for recovering both the light directions and camera poses from a single sphere. Traditional methods for estimating light directions using spher...
ICBA
2004
Springer
14 years 3 months ago
2004
Springer
This paper proposes a hardware-based line feature enhancement approach that uses a palmprint acquisition device fitted with a time-sharing light source. When capturing images, two ...
ICPR
2010
IEEE
14 years 6 days ago
2010
IEEE
In this paper, we present a shadow removal technique which effectively eliminates a human shadow cast from an unknown direction of light source. A multi-cue shadow descriptor is p...