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Proceedings Paper

Optical flow based deformable volume registration using a novel second-order regularization prior
Author(s): Saša Grbić; Martin Urschler; Thomas Pock; Horst Bischof
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Paper Abstract

Nonlinear image registration is an initial step for a large number of medical image analysis applications. Optical flow based intensity registration is often used for dealing with intra-modality applications involving motion differences. In this work we present an energy functional which uses a novel, second-order regularization prior of the displacement field. Compared to other methods our scheme is robust to non-Gaussian noise and does not penalize locally affine deformation fields in homogeneous areas. We propose an efficient and stable numerical scheme to find the minimizer of the presented energy. We implemented our algorithm using modern consumer graphics processing units and thereby increased the execution performance dramatically. We further show experimental evaluations on clinical CT thorax data sets at different breathing states and on dynamic 4D CT cardiac data sets.

Paper Details

Date Published: 12 March 2010
PDF: 8 pages
Proc. SPIE 7623, Medical Imaging 2010: Image Processing, 76232R (12 March 2010); doi: 10.1117/12.844549
Show Author Affiliations
Saša Grbić, Graz Univ. of Technology (Austria)
Martin Urschler, Graz Univ. of Technology (Austria)
Thomas Pock, Graz Univ. of Technology (Austria)
Horst Bischof, Graz Univ. of Technology (Austria)

Published in SPIE Proceedings Vol. 7623:
Medical Imaging 2010: Image Processing
Benoit M. Dawant; David R. Haynor, Editor(s)

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