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ICCV
2007
IEEE
14 years 9 months ago
Shining a Light on Human Pose: On Shadows, Shading and the Estimation of Pose and Shape
Strong lighting is common in natural scenes yet is often viewed as a nuisance for object pose estimation and tracking. In human shape and pose estimation, cast shadows can be conf...
Alexandru O. Balan, Michael J. Black, Horst W. Hau...
SIGGRAPH
1994
ACM
13 years 11 months ago
A fast shadow algorithm for area light sources using backprojection
The fast identification of shadow regions due to area light sources is necessary for realistic rendering and for discontinuity meshing for global illumination. A new shadow-determ...
George Drettakis, Eugene Fiume
ACII
2007
Springer
14 years 1 months ago
Expression of Emotions in Virtual Humans Using Lights, Shadows, Composition and Filters
Abstract. Artists use words, lines, shapes, color, sound and their bodies to express emotions. Virtual humans use postures, gestures, face and voice to express emotions. Why are th...
Celso de Melo, Ana Paiva
CVPR
2004
IEEE
14 years 9 months ago
Spherical Harmonics vs. Haar Wavelets: Basis for Recovering Illumination from Cast Shadows
The problem of estimating an illumination distribution from images is called inverse lighting. For inverse lighting, three approaches have been developed based on specular reflect...
Takahiro Okabe, Imari Sato, Yoichi Sato
JGTOOLS
2006
107views more  JGTOOLS 2006»
13 years 7 months ago
Efficient Shadows for Sampled Environment Maps
This paper addresses the problem of efficiently calculating shadows from environment maps in the context of ray-tracing. Since accurate rendering of shadows from environment maps ...
Aner Ben-Artzi, Ravi Ramamoorthi, Maneesh Agrawala