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Proceedings Paper

An improved 3D shape context registration method for non-rigid surface registration
Author(s): Di Xiao; David Zahra; Pierrick Bourgeat; Paula Berghofer; Oscar Acosta Tamayo; Catriona Wimberley; Marie-Claude Gregoire; Olivier Salvado
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Paper Abstract

3D shape context is a method to define matching points between similar shapes as a pre-processing step to non-rigid registration. The main limitation of the approach is point mismatching, which includes long geodesic distance mismatch and neighbors crossing mismatch. In this paper, we propose a topological structure verification method to correct the long geodesic distance mismatch and a correspondence field smoothing method to correct the neighbors crossing mismatch. A robust 3D shape context model is proposed and further combined with thin-plate spline model for non-rigid surface registration. The method was tested on phantoms and rat hind limb skeletons from micro CT images. The results from experiments on mouse hind limb skeletons indicate that the approach is robust.

Paper Details

Date Published: 12 March 2010
PDF: 9 pages
Proc. SPIE 7623, Medical Imaging 2010: Image Processing, 76232Q (12 March 2010); doi: 10.1117/12.844058
Show Author Affiliations
Di Xiao, Commonwealth Scientific and Industrial Research Organisation (Australia)
David Zahra, Australian Nuclear Science and Technology Organisation (Australia)
Pierrick Bourgeat, Commonwealth Scientific and Industrial Research Organisation (Australia)
Paula Berghofer, Australian Nuclear Science and Technology Organisation (Australia)
Oscar Acosta Tamayo, Commonwealth Scientific and Industrial Research Organisation (Australia)
Catriona Wimberley, Australian Nuclear Science and Technology Organisation (Australia)
Marie-Claude Gregoire, Australian Nuclear Science and Technology Organisation (Australia)
Olivier Salvado, Commonwealth Scientific and Industrial Research Organisation (Australia)


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

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