10 search results - page 1 / 2 » Between umbra and penumbra |
COMPGEOM
2007
ACM
13 years 6 months ago
2007
ACM
Computing shadow boundaries is a difficult problem in the case of non-point light sources. A point is in the umbra if it does not see any part of any light source; it is in full l...
CGF
2006
13 years 4 months ago
2006
Generating soft shadows in real time is difficult. Exact methods (such as ray tracing, and multiple light source simulation) are too slow, while approximate methods often overesti...
SI3D
2009
ACM
13 years 11 months ago
2009
ACM
We introduce a straightforward, robust, and efficient algorithm for rendering high-quality soft shadows in dynamic scenes. Each frame, points in the scene visible from the eye ar...
ICCV
2009
IEEE
14 years 8 months ago
2009
IEEE
Segmentation in the surveillance domain has to deal with shadows to avoid distortions when detecting moving objects. Most segmentation approaches dealing with shadow detection are ...
MIRAGE
2007
Springer
13 years 10 months ago
2007
Springer
Abstract. This paper introduces a new concept within shadow segmentation for usage in shadow removal and augmentation through construction of an alpha overlay shadow model. Previou...