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Authors: Julien Wojak ; Elsa D. Angelini and Isabelle Bloch

Affiliation: CNRS LTCI, France

Keyword(s): Segmentation, Medical imaging, Shape constraint.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Image and Video Analysis ; Segmentation and Grouping ; Surface Geometry and Shape

Abstract: In thoracic radiotherapy, some organs should be considered with care and protected from undesirable radiation. Among these organs, the heart is one of the most critical to protect. Its segmentation from routine CT scans provides valuable information to assess its position and shape. In this paper, we present a novel variational segmentation method for extracting the heart on non-contrast CT images. To handle the low image contrast around the cardiac borders, we propose to integrate shape constraints using Legendre moments and adding an energy term in the functional to be optimized. Results for whole heart segmentation in non-contrast CT images are presented and comparisons are performed with manual segmentations.

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Paper citation in several formats:
Wojak, J.; D. Angelini, E. and Bloch, I. (2010). INTRODUCING SHAPE CONSTRAINT VIA LEGENDRE MOMENTS IN A VARIATIONAL FRAMEWORK FOR CARDIAC SEGMENTATION ON NON-CONTRAST CT IMAGES. In Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2010) - Volume 2: VISAPP; ISBN 978-989-674-029-0; ISSN 2184-4321, SciTePress, pages 209-214. DOI: 10.5220/0002844502090214

@conference{visapp10,
author={Julien Wojak. and Elsa {D. Angelini}. and Isabelle Bloch.},
title={INTRODUCING SHAPE CONSTRAINT VIA LEGENDRE MOMENTS IN A VARIATIONAL FRAMEWORK FOR CARDIAC SEGMENTATION ON NON-CONTRAST CT IMAGES},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2010) - Volume 2: VISAPP},
year={2010},
pages={209-214},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002844502090214},
isbn={978-989-674-029-0},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2010) - Volume 2: VISAPP
TI - INTRODUCING SHAPE CONSTRAINT VIA LEGENDRE MOMENTS IN A VARIATIONAL FRAMEWORK FOR CARDIAC SEGMENTATION ON NON-CONTRAST CT IMAGES
SN - 978-989-674-029-0
IS - 2184-4321
AU - Wojak, J.
AU - D. Angelini, E.
AU - Bloch, I.
PY - 2010
SP - 209
EP - 214
DO - 10.5220/0002844502090214
PB - SciTePress

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