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Global alignment of MR images using a scale based hierarchical model

  • S. Fletcher
  • A. Bulpitt
  • D. Hogg
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1065)

Abstract

This paper proposes a novel automated method for global alignment of three dimensional MR images. The matching algorithm employed is closely related to a common constraint based tree searching algorithm [1], but uses a novel multi-resolution encoding of the search space to improve the search time and permit searching of curved surfaces. The algorithm uses the shape index defined by Koenderink [2] which provides the very useful property of invariance to uniform scale. The surfaces of the objects are extracted from the MR images automatically using a 3D deformable model [3]. An intelligent mechanism is used for selecting unusual surface features that are common to both objects.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • S. Fletcher
    • 1
  • A. Bulpitt
    • 1
  • D. Hogg
    • 1
  1. 1.School of Computer StudiesUniversity of LeedsLeedsUK

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