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Proceedings Paper

Motion tracking of the left-ventricular surface
Author(s): Amir A. Amimi; Peng-Cheng Shi; James S. Duncan
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Paper Abstract

A framework for tracking the motion of surfaces with specific applications to the left- ventricular endocardial wall is outlined. We use an elastic model of the object with constraints on the types of motion for tracking the movement. Conformal stretching is measured from a system of coordinates based on the principal directions of a surface patch, and in addition, an energy for bending of a 3-D surface is defined. Once initial match vectors are obtained from the bending and stretching model, membrane smoothing with confidences optimizes the flow estimates. To this end, a linear vector equation in terms of components of flow vectors is derived which must be satisfied at all nodes of a finite element grid. The coupled system of equations are solved with relaxation techniques. Applications of the algorithms to real and simulated data are given at the end.

Paper Details

Date Published: 26 June 1992
PDF: 11 pages
Proc. SPIE 1660, Biomedical Image Processing and Three-Dimensional Microscopy, (26 June 1992); doi: 10.1117/12.59564
Show Author Affiliations
Amir A. Amimi, Yale Univ. (United States)
Peng-Cheng Shi, Yale Univ. (United States)
James S. Duncan, Yale Univ. (United States)

Published in SPIE Proceedings Vol. 1660:
Biomedical Image Processing and Three-Dimensional Microscopy
Raj S. Acharya; Carol J. Cogswell; Dmitry B. Goldgof, Editor(s)

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