277 search results - page 6 / 56 » Illumination Distribution from Shadows |
MVA
2007
13 years 11 months ago
2007
Shadow detection is critical for robust and reliable vision-based systems for traffic vision analysis. Shadow points are often misclassified as object points causing errors in loc...
CVPR
2008
IEEE
14 years 11 months ago
2008
IEEE
In background subtraction, cast shadows induce silhouette distortions and object fusions hindering performance of high level algorithms in scene monitoring. We introduce a nonpara...
ECCV
2002
Springer
14 years 11 months ago
2002
Springer
Illumination conditions cause problems for many computer vision algorithms. Inparticular, shadows in an image can cause segmentation, tracking, or recognition algorithms to fail. I...
ICMCS
2006
IEEE
14 years 3 months ago
2006
IEEE
Flash/noflash pairs have been used for noise-reduction in ambient-light images. But not explicitly studied is the problem of shadows in the ambient images. While shadows are less...
SIGGRAPH
1999
ACM
14 years 2 months ago
1999
ACM
In this paper we present a technique for computing the direct lighting in a three-dimensional scene containing area light sources. Our method correctly handles partial visibility ...