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Proceedings Paper

Fusion for optimal path recovering in cerebral x-ray angiography
Author(s): Cezary Boldak; Christine Toumoulin; Jean-Louis Coatrieux
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Paper Abstract

The objective is to extract the most plausible graph of 2D vascular branches (e.g. with respect to some basic vessel features) or, in other words, to find the best pairing of vascular segments forming these branches. The assumption here is that a previous detection has been carried out which provides the vessel centerlines. The method, based on sparse to dense description, has been designed in order to eliminate irrelevant lines and to extract the most important branches. The key feature of the method is the use of data fusion concepts in a simple but efficient way, capable to later integrate possibilistic or fuzzy decisions. It makes use of local fusion decision at each node (vessel forking, crossing or ending), based on intensity, continuity and shape properties. Several criteria have been explored with hierarchically structured features. A global fusion allows multiple optimal paths to be set and further merged in order to derive a final graph. Local and global fusions are applied by traversing the vessel network form the extremities to the root and vice versa. Segments and branches are defined as objects for any further selection, manipulation and measurements. This method can be used both in pre-operative and intra-operative situations.

Paper Details

Date Published: 3 July 2001
PDF: 9 pages
Proc. SPIE 4322, Medical Imaging 2001: Image Processing, (3 July 2001); doi: 10.1117/12.431001
Show Author Affiliations
Cezary Boldak, Polytechnic Institute of Bialystok and Univ. de Rennes I (Poland)
Christine Toumoulin, Univ. de Rennes I (France)
Jean-Louis Coatrieux, Univ. de Rennes I (France)

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

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