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Mathematical Problems in Engineering
Volume 2014 (2014), Article ID 145780, 24 pages
http://dx.doi.org/10.1155/2014/145780
Research Article

A Variational Level Set Model Combined with FCMS for Image Clustering Segmentation

College of Mathematics and Physics, Chongqing University of Science and Technology, Chongqing 401331, China

Received 11 October 2013; Revised 2 January 2014; Accepted 3 January 2014; Published 23 February 2014

Academic Editor: Dan Simon

Copyright © 2014 Liming Tang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The fuzzy C means clustering algorithm with spatial constraint (FCMS) is effective for image segmentation. However, it lacks essential smoothing constraints to the cluster boundaries and enough robustness to the noise. Samson et al. proposed a variational level set model for image clustering segmentation, which can get the smooth cluster boundaries and closed cluster regions due to the use of level set scheme. However it is very sensitive to the noise since it is actually a hard C means clustering model. In this paper, based on Samson’s work, we propose a new variational level set model combined with FCMS for image clustering segmentation. Compared with FCMS clustering, the proposed model can get smooth cluster boundaries and closed cluster regions due to the use of level set scheme. In addition, a block-based energy is incorporated into the energy functional, which enables the proposed model to be more robust to the noise than FCMS clustering and Samson’s model. Some experiments on the synthetic and real images are performed to assess the performance of the proposed model. Compared with some classical image segmentation models, the proposed model has a better performance for the images contaminated by different noise levels.