Automatic 3D ASM Construction via Atlas-Based Landmarking and Volumetric Elastic Registration

  • Authors:
  • Alejandro F. Frangi;Daniel Rueckert;Julia A. Schnabel;Wiro J. Niessen

  • Affiliations:
  • -;-;-;-

  • Venue:
  • IPMI '01 Proceedings of the 17th International Conference on Information Processing in Medical Imaging
  • Year:
  • 2001

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Abstract

A novel method is introduced that allows for the generation of landmarks for three-dimensional shapes and the construction of the corresponding 3D Active Shape Models (ASM). Landmarking of a set of examples from a class of shapes is achieved by (i) construction of an atlas of the class, (ii) automatic extraction of the landmarks from the atlas, and (iii) subsequent propagation of these landmarks to each example shape via a volumetric elastic deformation procedure. This paper describes in detail the method to generate the atlas, and the landmark extraction and propagation procedures. This technique presents some advantages over previously published methods: it can treat multiple-part structures, and it requires less restrictive assumptions on the structure's topology. The applicability of the developed technique is demonstrated with two examples: CT bone data and MR brain data.