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Hierarchical 3D Shape Model for Segmentation of 4D MR Cardiac Images

  • Yan Shang
  • Guangda Su
  • Olaf Dössel
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4091)

Abstract

A novel method for the segmentation of 4D MR cardiac images is introduced in this paper. The method improves the traditional active shape model method by adopting an 3D spatially hierarchical expression of the shape model, which is used as an internal regulation force during the segmentation process. Generation of the landmarks for constructing the shape model is based on the active surface method itself utilizing the long range image force, gradient vector flow (GVF). For constructing hierarchical statistical shape models, initial landmarking is done on a manually segmented training set with different spatial resolutions. Principal component analysis is then used to derive the hierarchical expression of the shape model. Experimental results for 4D MR cardiac image segmentation are presented.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Yan Shang
    • 1
  • Guangda Su
    • 1
  • Olaf Dössel
    • 2
  1. 1.Research Institute of Image and Graphics, Electronic Engineering DepartmentTsinghua UniversityP.R. China
  2. 2.Institut für Biomedizinische TechnikUniversität KarlsruheGermany

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