Title
Robust Edge-Stop Functions for Edge-Based Active Contour Models in Medical Image Segmentation
Abstract
Edge-based active contour models are effective in segmenting images with intensity inhomogeneity but often fail when applied to images containing poorly defined boundaries, such as in medical images. Traditional edge-stop functions (ESFs) utilize only gradient information, which fails to stop contour evolution at such boundaries because of the small gradient magnitudes. To address this problem, we propose a framework to construct a group of ESFs for edge-based active contour models to segment objects with poorly defined boundaries. In our framework, which incorporates gradient information as well as probability scores from a standard classifier, the ESF can be constructed from any classification algorithm and applied to any edge-based model using a level set method. Experiments on medical images using the distance regularized level set for edge-based active contour models as well as the k-nearest neighbours and the support vector machine confirm the effectiveness of the proposed approach.
Year
DOI
Venue
2016
10.1109/LSP.2015.2508039
Signal Processing Letters, IEEE
Keywords
Field
DocType
Edge-based active contour,edge-stop function,gradient information,image segmentation,probability score
Active contour model,Computer vision,Image gradient,Pattern recognition,Level set method,Support vector machine,Level set,Image segmentation,Artificial intelligence,Classifier (linguistics),Morphological gradient,Mathematics
Journal
Volume
Issue
ISSN
23
2
1070-9908
Citations 
PageRank 
References 
16
0.69
20
Authors
3
Name
Order
Citations
PageRank
Agus Pratondo1231.85
Chee-Kong Chui224538.34
Sim Heng Ong342644.63