Gradient Flows as a Selection Procedure for Equilibria of Nonconvex Energies.
Christoph OrtnerPublished in: SIAM J. Math. Anal. (2006)
Keyphrases
- gradient flows
- active contour model
- active contours
- geometric active contours
- gradient flow
- energy functional
- riemannian metric
- global optimization
- curve evolution
- fixed point
- sobolev active contours
- level set
- objective function
- convex optimization
- partial differential equations
- energy minimization
- image segmentation
- region growing
- energy function
- segmentation method
- level set method
- vector space
- gradient vector flow
- variational formulation
- cost function
- anisotropic diffusion
- object boundaries
- shape prior
- natural images
- coarse to fine