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» A Reflective Symmetry Descriptor
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ICIP
2004
IEEE
14 years 9 months ago
Symmetry feature in content-based image retrieval
In this paper, we first apply the theory of wallpaper groups to natural images and extract a novel feature to depict the symmetry property of natural images. The original proposed...
Jingrui He, Mingjing Li, HongJiang Zhang, Changshu...
ICCV
2007
IEEE
14 years 9 months ago
Novel Depth Cues from Uncalibrated Near-field Lighting
We present the first method to compute depth cues from images taken solely under uncalibrated near point lighting. A stationary scene is illuminated by a point source that is move...
Sanjeev J. Koppal, Srinivasa G. Narasimhan
DAC
2004
ACM
14 years 8 months ago
Exploiting structure in symmetry detection for CNF
Instances of the Boolean satisfiability problem (SAT) arise in many areas of circuit design and verification. These instances are typically constructed from some human-designed ar...
Paul T. Darga, Mark H. Liffiton, Karem A. Sakallah...
CGF
2006
113views more  CGF 2006»
13 years 7 months ago
Accurate Specular Reflections in Real-Time
Specular reflections provide many important visual cues in our daily environment. They inform us of the shape of objects, of the material they are made of, of their relative posit...
David Roger, Nicolas Holzschuch
TOG
2008
116views more  TOG 2008»
13 years 7 months ago
A photometric approach for estimating normals and tangents
This paper presents a technique for acquiring the shape of realworld objects with complex isotropic and anisotropic reflectance. Our method estimates the local normal and tangent ...
Michael Holroyd, Jason Lawrence, Greg Humphreys, T...