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ICRA
1994
IEEE
105views Robotics» more  ICRA 1994»
13 years 11 months ago
A Robotic Lighting System for Solar Illumination Simulation
This report details our development of a computer controlled spotlight with four actuated degrees-of-freedom for pan, tilt, linear movement, and beam focusing. We review the mecha...
Richard Volpe, Douglas McAffee
SIGGRAPH
1998
ACM
13 years 11 months ago
A Non-photorealistic Lighting Model for Automatic Technical Illustration
Phong-shaded 3D imagery does not provide geometric information of the same richness as human-drawn technical illustrations. A non-photorealistic lighting model is presented that a...
Amy Gooch, Bruce Gooch, Peter Shirley, Elaine Cohe...
VC
2008
132views more  VC 2008»
13 years 7 months ago
Caustic spot light for rendering caustics
It is difficult to render caustic patterns at interactive frame rates. This paper introduces new rendering techniques that relax current constraints, allowing scenes with moving, n...
Xinguo Liu, Zhao Dong, Hujun Bao, Qunsheng Peng
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
PAMI
2006
122views more  PAMI 2006»
13 years 7 months ago
Total Variation Models for Variable Lighting Face Recognition
In this paper, we present the logarithmic total variation (LTV) model for face recognition under varying illumination, including natural lighting conditions, where we rarely know t...
Terrence Chen, Wotao Yin, Xiang Sean Zhou, Dorin C...