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Proceedings Paper

Template selection and rejection for robust nonrigid 3D registration in the presence of large deformations
Author(s): Peter Roesch; Torsten Mohs; Thomas Netsch; Marcel J. Quist; Graeme P. Penney; David John Hawkes; Juergen Weese
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Paper Abstract

The purpose of the proposed template propagation method is to support the comparative analysis of image pairs even when large deformations (e.g. from movement) are present. Starting from a position where valid starting estimates are known, small sub-volumes (templates) are registered rigidly. Propagating registration results to neighboring templates, the algorithm proceeds layer by layer until corresponding points for the whole volume are available. Template classification is important for defining the templates to be registered, for propagating registration results and for selecting successfully registered templates which finally represent the motion vector field. This contribution discusses a template selection and classification strategy based on the analysis of the similarity measure in the vicinity of the optimum. For testing the template propagation and classification methods, deformation fields of four volume pairs exhibiting considerable deformations have been estimated and the results have been compared to corresponding points picked by an expert. In all four cases, the proposed classification scheme was successful. Based on homologous points resulting from template propagation, an elastic transformation was performed.

Paper Details

Date Published: 3 July 2001
PDF: 12 pages
Proc. SPIE 4322, Medical Imaging 2001: Image Processing, (3 July 2001); doi: 10.1117/12.431128
Show Author Affiliations
Peter Roesch, Philips Research Labs. (Germany)
Torsten Mohs, Philips Research Labs. (Germany)
Thomas Netsch, Philips Research Labs. (Germany)
Marcel J. Quist, Philips Medical Systems Nederland (Netherlands)
Graeme P. Penney, Guy's, King's and St. Thomas' School of Medicine (United Kingdom)
David John Hawkes, Guy's, King's and St. Thomas' School of Medicine (United Kingdom)
Juergen Weese, Philips Research Labs. (Germany)

Published in SPIE Proceedings Vol. 4322:
Medical Imaging 2001: Image Processing
Milan Sonka; Kenneth M. Hanson, Editor(s)

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