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» Illuminating Illumination
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ICCV
2011
IEEE
12 years 7 months ago
Illumination Demultiplexing from a Single Image
A class of techniques in computer vision and graphics is based on capturing multiple images of a scene under different illumination conditions. These techniques explore variations...
Christine Chen, Daniel Vaquero, Matthew Turk
CCCG
1998
13 years 9 months ago
Illuminating triangles and quadrilaterals with vertex floodlights
We show that three /6 vertex floodlights suffice to illuminate any triangle, and we prove that any quadrilateral can be illuminated by three /4 vertex floodlights.
Felipe Contreras, Jurek Czyzowicz, Nicolas Fraiji,...
CVPR
2009
IEEE
15 years 2 months ago
(De) Focusing on Global Light Transport for Active Scene Recovery
Most active scene recovery techniques assume that a scene point is illuminated only directly by the illumination source. Consequently, global illumination effects due to inter-refl...
Li Zhang, Mohit Gupta, Srinivasa G. Narasimhan, Yu...
CRV
2006
IEEE
69views Robotics» more  CRV 2006»
14 years 1 months ago
Photometric Stereo with Nearby Planar Distributed Illuminants
This paper considers the problem of shape-from-shading using nearby planar distributed illuminants. It is shown that a rectangular planar nearby distributed uniform isotropic illu...
James J. Clark
FGR
2008
IEEE
202views Biometrics» more  FGR 2008»
13 years 7 months ago
Illumination transfer using homomorphic wavelet filtering and its application to light-insensitive face recognition
In this paper, we propose a novel homomorphic wavelet filtering based illumination transfer technique to change the dominant lighting of one face image (source face image) to anot...
Hu Han, Shiguang Shan, Xilin Chen, Wen Gao