44 search results - page 2 / 9 » Light Source Estimation for Realistic Shadow using Segmented... |
PG
2002
IEEE
13 years 10 months 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...
CVPR
2009
IEEE
14 years 1 days ago
2009
IEEE
Illuminant estimation from shadows typically relies on accurate segmentation of the shadows and knowledge of exact 3D geometry, while shadow estimation is difficult in the presen...
VG
2001
13 years 6 months ago
2001
In this paper we describe an efficient approach to add shadows to volumetric scenes. The light emitted by the lightsource is properly attenuated by the intervening volumetric struc...
SIBGRAPI
2006
IEEE
13 years 11 months ago
2006
IEEE
This paper presents a novel image-based approach to render plausible soft shadows for complex dynamic scenes with rectangular light sources. The algorithm's performance is mo...
ECCV
2006
Springer
13 years 9 months ago
2006
Springer
Many previous works on photometric stereo have shown how to recover the shape and reflectance properties of an object using multiple images taken under a fixed viewpoint and variab...