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CVPR
2005
IEEE
14 years 9 months ago
Visibility Constrained Surface Evolution
The problem of feature-based surface reconstruction is considered in this paper. Our main contribution is the ability to handle visibility constraints, obtained from the projectio...
Jan Erik Solem, Fredrik Kahl, Anders Heyden
GMP
2008
IEEE
141views Solid Modeling» more  GMP 2008»
13 years 8 months ago
Variational Skinning of an Ordered Set of Discrete 2D Balls
Abstract. This paper considers the problem of computing an interpolating skin of a ordered set of discrete 2D balls. By construction, the skin is constrained to be C1 continuous, a...
Gregory G. Slabaugh, Gozde B. Unal, Tong Fang, Jar...
SIGGRAPH
1992
ACM
13 years 11 months ago
Variational surface modeling
We present a new approachto interactive modeling of freeform surfaces. Instead of a fixed mesh of control points, the model presented to the user is that of an infinitely malleabl...
William Welch, Andrew P. Witkin
SIAMIS
2010
283views more  SIAMIS 2010»
13 years 2 months ago
A General Framework for a Class of First Order Primal-Dual Algorithms for Convex Optimization in Imaging Science
We generalize the primal-dual hybrid gradient (PDHG) algorithm proposed by Zhu and Chan in [M. Zhu, and T. F. Chan, An Efficient Primal-Dual Hybrid Gradient Algorithm for Total Var...
Ernie Esser, Xiaoqun Zhang, Tony F. Chan
AMFG
2003
IEEE
126views Biometrics» more  AMFG 2003»
14 years 24 days ago
Rank Constrained Recognition under Unknown Illuminations
Recognition under illumination variations is a challenging problem. The key is to successfully separate the illumination source from the observed appearance. Once separated, what ...
Shaohua Kevin Zhou, Rama Chellappa