Multiframe Temporal Estimation of Cardiac Nonrigid Motion

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Authors
McEachen, John C. II
Nehorai, Arye
Duncan, James S.
Subjects
Harmonic estimation
heart motion
nonrigid motion
recursive least squares (RLS) filtering
spatiotemporal analysis
Advisors
Date of Issue
2000-04
Date
Publisher
IEEE
Language
Abstract
A robust, flexible system for tracking the point to point nonrigid motion of the left ventricular (LV) endocardial wall in image sequences has been developed. This system is unique in its ability to model motion trajectories across multiple frames. The foundation of this system is an adaptive transversal filter based on the recursive least-squares algorithm. This filter facilitates the integration of models for periodicity and proximal smoothness as appropriate using a contour-based description of the object’s boundaries. A set of correspondences between contours and an associated set of correspondence quality measures comprise the input to the system. Frame-to-frame relationships from two different frames of reference are derived and analyzed using synthetic and actual images. Two multiframe temporal models, both based on a sum of sinusoids, are derived. Illustrative examples of the system’s output are presented for quantitative analysis. Validation of the system is performed by comparing computed trajectory estimates with the trajectories of physical markers implanted in the LV wall. Sample case studies of marker trajectory comparisons are presented. Ensemble statistics from comparisons with 15 marker trajectories are acquired and analyzed. A multiframe temporal model without spatial periodicity constraints was determined to provide excellent performance with the least computational cost. A multiframe spatiotemporal model provided the best performance based on statistical standard deviation, although at significant computational expense.
Type
Article
Description
URI
https://hdl.handle.net/10945/69336
Series/Report No
Department
Electrical and Computer Engineering (ECE)
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
National Heart, Lung, and Blood Institute
Air Force of Scientific Research
National Science Foundation
Office of Naval Research
Funder
R01HL44803
F49620-99-1-0481
F49620-99-1-0067
MIP-9615590
N00014-98-1-0542
Format
15 p.
Citation
McEachen, John C., Arye Nehorai, and James S. Duncan. "Multiframe temporal estimation of cardiac nonrigid motion." IEEE Transactions on Image Processing 9.4 (2000): 651-665.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States
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