Title
Incorporating shape variability in image segmentation via implicit template deformation.
Abstract
Implicit template deformation is a model-based segmentation framework that was successfully applied in several medical applications. In this paper, we propose a method to learn and use prior knowledge on shape variability in such framework. This shape prior is learnt via an original and dedicated process in which both an optimal template and principal modes of variations are estimated from a collection of shapes. This learning strategy requires neither a pre-alignment of the training shapes nor one-to-one correspondences between shape sample points. We then generalize the implicit template deformation formulation to automatically select the most plausible deformation as a shape prior. This novel framework maintains the two main properties of implicit template deformation: topology preservation and computational efficiency. Our approach can be applied to any organ with a possibly complex shape but fixed topology. We validate our method on myocardium segmentation from cardiac magnetic resonance short-axis images and demonstrate segmentation improvement over standard template deformation.
Year
DOI
Venue
2013
10.1007/978-3-642-40760-4_11
Lecture Notes in Computer Science
DocType
Volume
Issue
Conference
8151
Pt 3
ISSN
Citations 
PageRank 
0302-9743
4
0.47
References 
Authors
11
5
Name
Order
Citations
PageRank
Raphael Prevost1927.01
Rémi Cuingnet241519.36
Benoit Mory315011.08
Laurent D. Cohen41162149.39
Roberto Ardon516211.06