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CVRMED
1997
Springer
15 years 10 months ago
Medical image segmentation using topologically adaptable surfaces
E cient and powerful topologically adaptable deformable surfaces can be created by embedding and de ning discrete deformable surface models in terms of an A ne Cell Decomposition (...
Tim McInerney, Demetri Terzopoulos
STOC
2002
ACM
99views Algorithms» more  STOC 2002»
16 years 6 months ago
Recognizing string graphs in NP
A string graph is the intersection graph of a set of curves in the plane. Each curve is represented by a vertex, and an edge between two vertices means that the corresponding curv...
Marcus Schaefer, Eric Sedgwick, Daniel Stefankovic
GECCO
2003
Springer
415views Optimization» more  GECCO 2003»
15 years 11 months ago
Evolutionary Algorithms for Two Problems from the Calculus of Variations
Abstract. A brachistochrone is the path along which a weighted particle falls most quickly from one point to another, and a catenary is the smooth curve connecting two points whose...
Bryant A. Julstrom
GRAPHICSINTERFACE
2001
15 years 7 months ago
Novel Solver for Dynamic Surfaces
Physics-based modeling integrates dynamics and geometry. The standard methods to solve the Lagrangian equations use a direct approach in the spatial domain. Though extremely power...
Sumantro Ray, Hong Qin
SCALESPACE
2007
Springer
16 years 3 days ago
The Variational Origin of Motion by Gaussian Curvature
A variational formulation of an image analysis problem has the nice feature that it is often easier to predict the eect of minimizing a certain energy functional than to interpret...
Niels Chr. Overgaard, Jan Erik Solem