Skip to main content
Article thumbnail
Location of Repository

Prior-Based Piecewise-Smooth Segmentation by Template Competitive Deformation Using Partitions of Unity

By Oudom Somphone, Benoit Mory, Sherif Makram-ebeid and Laurent Cohen

Abstract

Abstract. We propose a new algorithm for two-phase, piecewise-smooth segmentation with shape prior. The image is segmented by a binary template that is deformed by a regular geometric transformation. The choice of the template together with the constraint on the transformation introduce the shape prior. The deformation is guided by the maximization of the likelihood of foreground and background intensity models, so that we can refer to this approach as Competitive Deformation. In each region, the intensity is modelled as a smooth approximation of the original image. We represent the transformation using a Partition of Unity Finite Element Method, which consists in representing each component with polynomial approximations within local patches. A conformity constraint between the patches provides a way to control the globality of the deformation. We show several results on synthetic images, as well as on medical data from different modalities.

Publisher: Springer
Year: 2008
OAI identifier: oai:CiteSeerX.psu:10.1.1.418.1095
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • https://www.ceremade.dauphine.... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.