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Proceedings Paper

Elastic registration using 3D ChainMail: application to virtual colonoscopy
Author(s): Carlos R. Castro-Pareja; Barry Daly; Raj Shekhar
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Paper Abstract

We present an elastic registration algorithm based on local deformations modeled using cubic B-splines and controlled using 3D ChainMail. Our algorithm eliminates the appearance of folding artifacts and allows local rigidity and compressibility control independent of the image similarity metric being used. 3D ChainMail propagates large internal deformations between neighboring B-Spline control points, thereby preserving the topology of the transformed image without requiring the addition of penalty terms based on rigidity of the transformation field to the equation used to maximize image similarity. A novel application to virtual colonoscopy is presented where the algorithm is used to significantly improve cross-localization between colon locations in prone and supine CT images.

Paper Details

Date Published: 10 March 2006
PDF: 9 pages
Proc. SPIE 6144, Medical Imaging 2006: Image Processing, 61442Y (10 March 2006); doi: 10.1117/12.653644
Show Author Affiliations
Carlos R. Castro-Pareja, Univ. of Maryland School of Medicine (United States)
Barry Daly, Univ. of Maryland School of Medicine (United States)
Raj Shekhar, Univ. of Maryland School of Medicine (United States)

Published in SPIE Proceedings Vol. 6144:
Medical Imaging 2006: Image Processing
Joseph M. Reinhardt; Josien P. W. Pluim, Editor(s)

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