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» On the curvature of guided surfaces
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VMV
2000
157views Visualization» more  VMV 2000»
13 years 9 months ago
Visualization of Principal Curvature Directions by Anisotropic Diffusion
Anisotropic diffusion is known to be a powerful tool in image processing. It enables the smoothing of initially noisy images while still retaining, respectively sharpening edges a...
Udo Diewald, Martin Rumpf
ICCV
1999
IEEE
14 years 9 months ago
Photometric Surface Analysis in a Tri-Luminal Environment
Methods for the analysis of images of the same scene taken under three different lighting conditions are illustrated. A technique that separates the effects of geometry and surfac...
Elli Angelopoulou, James P. Williams
IMAMS
2007
245views Mathematics» more  IMAMS 2007»
13 years 9 months ago
Discrete Surface Ricci Flow: Theory and Applications
Conformal geometry is in the core of pure mathematics. Conformal structure is more flexible than Riemaniann metric but more rigid than topology. Conformal geometric methods have p...
Miao Jin, Junho Kim, Xianfeng David Gu
ICIP
2003
IEEE
14 years 28 days ago
Facial feature extraction using topological methods
Automatic facial feature extraction is one of the most important and attempted problems in computer vision. It is a necessary step in face recognition, facial image compression an...
A. Gunduz, Hamid Krim
FGR
2008
IEEE
285views Biometrics» more  FGR 2008»
14 years 2 months ago
Component-based registration with curvature descriptors for expression insensitive 3d face recognition
Deformations caused by facial expression variations complicate the task of 3D face registration which is vital for successful 3D face recognition systems. In this work, we propose...
Nese Alyüz, Berk Gökberk, Hamdi Dibeklio...