A Nonparametric Shape Prior Constrained Active Contour Model for Segmentation of Coronaries in CTA Images
Joint Authors
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-01
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
We present a nonparametric shape constrained algorithm for segmentation of coronary arteries in computed tomography images within the framework of active contours.
An adaptive scale selection scheme, based on the global histogram information of the image data, is employed to determine the appropriate window size for each point on the active contour, which improves the performance of the active contour model in the low contrast local image regions.
The possible leakage, which cannot be identified by using intensity features alone, is reduced through the application of the proposed shape constraint, where the shape of circular sampled intensity profile is used to evaluate the likelihood of current segmentation being considered vascular structures.
Experiments on both synthetic and clinical datasets have demonstrated the efficiency and robustness of the proposed method.
The results on clinical datasets have shown that the proposed approach is capable of extracting more detailed coronary vessels with subvoxel accuracy.
American Psychological Association (APA)
Wang, Yin& Jiang, Han. 2014. A Nonparametric Shape Prior Constrained Active Contour Model for Segmentation of Coronaries in CTA Images. Computational and Mathematical Methods in Medicine،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-461728
Modern Language Association (MLA)
Wang, Yin& Jiang, Han. A Nonparametric Shape Prior Constrained Active Contour Model for Segmentation of Coronaries in CTA Images. Computational and Mathematical Methods in Medicine No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-461728
American Medical Association (AMA)
Wang, Yin& Jiang, Han. A Nonparametric Shape Prior Constrained Active Contour Model for Segmentation of Coronaries in CTA Images. Computational and Mathematical Methods in Medicine. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-461728
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-461728