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Authors: Ali K. Hamou and Mahmoud R. El-Sakka

Affiliation: University of Western Ontario, Canada

Keyword(s): Active contours, Deformable models, Snakes, Gradient vector flow, Shape priors, Optical flow, Echocardiography.

Related Ontology Subjects/Areas/Topics: Applications ; Computer Vision, Visualization and Computer Graphics ; Image and Video Coding and Compression ; Image Formation and Preprocessing ; Medical Imaging ; Pattern Recognition ; Software Engineering

Abstract: Accurate delineation of object borders is highly desirable in echocardiography. Among other model-based techniques, active contours (or snakes) provide a unique and powerful approach to image analysis. In this work, we propose the use of a new external energy for a GVF snake, consisting of the optical flow data of moving heart structures (i.e. the perceived movement). This new external energy provides more information to the active contour model to combat noise in moving sequences. An automated primitive shape prior mechanism is also introduced, which further improves the results when dealing with especially noisy echocardiographic image cines. Results were compared with that of expert manual segmentations yielding promising sensitivities and system accuracies.

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Paper citation in several formats:
K. Hamou, A. and R. El-Sakka, M. (2009). ACTIVE CONTOURS WITH OPTICAL FLOW AND PRIMITIVE SHAPE PRIORS FOR ECHOCARDIOGRAPHIC IMAGERY. In Proceedings of the First International Conference on Computer Imaging Theory and Applications (VISIGRAPP 2009) - IMAGAPP; ISBN 978-989-8111-68-5, SciTePress, pages 111-118. DOI: 10.5220/0001804201110118

@conference{imagapp09,
author={Ali {K. Hamou}. and Mahmoud {R. El{-}Sakka}.},
title={ACTIVE CONTOURS WITH OPTICAL FLOW AND PRIMITIVE SHAPE PRIORS FOR ECHOCARDIOGRAPHIC IMAGERY},
booktitle={Proceedings of the First International Conference on Computer Imaging Theory and Applications (VISIGRAPP 2009) - IMAGAPP},
year={2009},
pages={111-118},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001804201110118},
isbn={978-989-8111-68-5},
}

TY - CONF

JO - Proceedings of the First International Conference on Computer Imaging Theory and Applications (VISIGRAPP 2009) - IMAGAPP
TI - ACTIVE CONTOURS WITH OPTICAL FLOW AND PRIMITIVE SHAPE PRIORS FOR ECHOCARDIOGRAPHIC IMAGERY
SN - 978-989-8111-68-5
AU - K. Hamou, A.
AU - R. El-Sakka, M.
PY - 2009
SP - 111
EP - 118
DO - 10.5220/0001804201110118
PB - SciTePress