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» Lattices of convex normal functions
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CVPR
2005
IEEE
14 years 9 months ago
Dense Photometric Stereo Using a Mirror Sphere and Graph Cut
We present a surprisingly simple system that allows for robust normal reconstruction by dense photometric stereo, in the presence of severe shadows, highlight, transparencies, com...
Tai-Pang Wu, Chi-Keung Tang
ICCS
2004
Springer
14 years 1 months ago
A Cartesian Closed Category of Approximable Concept Structures
Abstract. Infinite contexts and their corresponding lattices are of theoretical and practical interest since they may offer connections with and insights from other mathematical ...
Pascal Hitzler, Guo-Qiang Zhang
CANDC
2006
ACM
13 years 7 months ago
Hydrophobic collapse in (in silico) protein folding
A model of hydrophobic collapse, which is treated as the driving force for protein folding, is presented. This model is the superposition of three models commonly used in protein ...
Michal Brylinski, Leszek Konieczny, Irena Roterman
CVPR
1996
IEEE
13 years 12 months ago
What is the set of images of an object under all possible lighting conditions?
The appearance of a particular object depends on both the viewpoint from which it is observed and the light sources by which it is illuminated. If the appearance of two objects is...
Peter N. Belhumeur, David J. Kriegman
PAMI
2002
122views more  PAMI 2002»
13 years 7 months ago
Analytic PCA Construction for Theoretical Analysis of Lighting Variability in Images of a Lambertian Object
We analyze theoretically the subspace best approximating images of a convex Lambertian object taken from the same viewpoint, but under different distant illumination conditions. Si...
Ravi Ramamoorthi