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Three-dimensional movement analysis in digital subtraction angiography: symbol generation from 3-D optical flow

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5 Author(s)
Puentes, W. ; Grupo de Bioingenieria y Biofisica Aplicada, Simon Bolivar Univ., Caracas, Venezuela ; Roux, C. ; Garreau, M. ; Coatrieux, J.L.
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A knowledge-based system to achieve three-dimensional (3-D) optical flow symbolic classification is proposed. Symbols are matched to verbal labels that describe branch motion through an image sequence. A novel numeric to symbolic image transformation is presented, which provides data for the movement interpretation stage. The system is capable of describing and analyzing some dynamic aspects of 3-D artery motion in space over time, such as rotation and translation of some vessels subsets, labeling of expansion and contraction cycles, and classification of homogeneous movements. A test on a 3-D sequence of reconstructed arteries centerlines is presented

Published in:

Computers in Cardiology 1994

Date of Conference:

25-28 Sep 1994