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Publication Detail
Using fractional gradient information in non-rigid image registration: Application to breast MRI
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Conference Proceeding
  • Authors:
    Melbourne A, Cahill N, Tanner C, Modat M, Hawkes DJ, Ourselin S
  • Publication date:
  • Journal:
    Progress in Biomedical Optics and Imaging - Proceedings of SPIE
  • Volume:
  • Status:
  • Print ISSN:
This work applies fractional differentiation (differentiation to non-integer order) to the gradients determined from image intensities for enhanced image registration. The technique is used to correct known simulated deformations of volumetric breast MR data using two algorithms: direct registration of gradient magnitude images and an extension of a previously published method that incorporates both image intensity and image gradient information to enhance registration performance. Better recovery of known deformations are seen when using non-integer order derivatives: half-derivative breast images are better registered when these methods are incorporated into a standard diffusion-based registration algorithm. © 2012 SPIE.
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