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Efficient and Enhanced Diffusion of Vector Field for Active Contour Model
Joint Authors
Liu, Guoqi
Sun, Lin
Liu, Shangwang
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-07
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Gradient vector flow (GVF) is an important external force field for active contour models.
Various vector fields based on GVF have been proposed.
However, these vector fields are obtained with many iterations and have difficulty in capturing the whole image area.
On the other hand, the ability to converge to deep and complex concavity with these vector fields is also needed to improve.
In this paper, by analyzing the diffusion equation of GVF, a normalized set is defined and a dynamically normalized constraint of vector fields is used for efficient diffusion, which makes the edge vector diffusing rapidly to the entire image region.
In order to improve the ability to converge to concavity, an enhanced diffusion term is integrated into the original energy functional.
With the dynamically normalized constraint and enhanced diffusion term, new vector fields of EDGVF (efficient and enhanced diffusion for GVF) and EDNGVF (efficient and enhanced diffusion of NGVF) are obtained.
Experimental results demonstrate that vector fields with proposed method capture the entire image and are obtained with less iterations and computational times.
In particular, EDNGVF greatly improves the ability to converge to concavity.
American Psychological Association (APA)
Liu, Guoqi& Sun, Lin& Liu, Shangwang. 2015. Efficient and Enhanced Diffusion of Vector Field for Active Contour Model. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1073551
Modern Language Association (MLA)
Liu, Guoqi…[et al.]. Efficient and Enhanced Diffusion of Vector Field for Active Contour Model. Mathematical Problems in Engineering No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1073551
American Medical Association (AMA)
Liu, Guoqi& Sun, Lin& Liu, Shangwang. Efficient and Enhanced Diffusion of Vector Field for Active Contour Model. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1073551
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073551