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CVBIA
2005
Springer

Active Contours Under Topology Control Genus Preserving Level Sets

8 years 11 months ago
Active Contours Under Topology Control Genus Preserving Level Sets
We present a novel framework to exert topology control over a level set evolution. Level set methods offer several advantages over parametric active contours, in particular automated topological changes. In some applications, where some a priori knowledge of the target topology is available, topological changes may not be desirable. This is typically the case in biomedical image segmentation, where the topology of the target shape is prescribed by anatomical knowledge. However, topologically constrained evolutions often generate topological barriers that lead to large geometric inconsistencies. We introduce a topologically controlled level set framework that greatly alleviates this problem. Unlike existing work, our method allows connected components to merge, split or vanish under some specific conditions that ensure that no topological defects are generated. We demonstrate the strength of our method on a wide range of numerical experiments and illustrate its performance on the segme...
Florent Ségonne, Jean-Philippe Pons, W. Eri
Added 26 Jun 2010
Updated 26 Jun 2010
Type Conference
Year 2005
Where CVBIA
Authors Florent Ségonne, Jean-Philippe Pons, W. Eric L. Grimson, Bruce Fischl
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