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Proceedings Paper

Using fractional gradient information in non-rigid image registration: application to breast MRI
Author(s): A. Melbourne; N. Cahill; C. Tanner; M. Modat; D. J. Hawkes; S. Ourselin
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Paper Abstract

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.

Paper Details

Date Published: 14 February 2012
PDF: 10 pages
Proc. SPIE 8314, Medical Imaging 2012: Image Processing, 83141Z (14 February 2012); doi: 10.1117/12.911173
Show Author Affiliations
A. Melbourne, Univ. College London (United Kingdom)
N. Cahill, Rochester Institute of Technology (United States)
C. Tanner, Univ. College London (United Kingdom)
M. Modat, Univ. College London (United Kingdom)
D. J. Hawkes, Univ. College London (United Kingdom)
S. Ourselin, Univ. College London (United Kingdom)

Published in SPIE Proceedings Vol. 8314:
Medical Imaging 2012: Image Processing
David R. Haynor; Sébastien Ourselin, Editor(s)

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