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Publication Detail
A Demons algorithm for image registration with locally adaptive regularization
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Conference Proceeding
  • Authors:
    Cahill ND, Noble JA, Hawkes DJ
  • Publication date:
    01/12/2009
  • Pagination:
    574, 581
  • Journal:
    Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
  • Volume:
    5761 LNCS
  • Issue:
    PART 1
  • Status:
    Published
  • Print ISSN:
    0302-9743
Abstract
Thirion's Demons [1] is a popular algorithm for nonrigid image registration because of its linear computational complexity and ease of implementation. It approximately solves the diffusion registration problem [2] by successively estimating force vectors that drive the deformation toward alignment and smoothing the force vectors by Gaussian convolution. In this article, we show how the Demons algorithm can be generalized to allow image-driven locally adaptive regularization [3,4] in a manner that preserves both the linear complexity and ease of implementation of the original Demons algorithm. We show that the proposed algorithm exhibits lower target registration error and requires less computational effort than the original Demons algorithm on the registration of serial chest CT scans of patients with lung nodules. © 2009 Springer-Verlag.
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