A novel model and method based on Nash equilibrium for medical image segmentation

Zhang, Tian; Zhang, Jing; Zhang, Jian; Smith, Melvyn; Hancock, Edwin

Abstract

Accurate image segmentation is a very important task in medical image analysis as it can help us to better distinguish tumours from normal tissues. One of the important features of MRI images of glioma (a kind of brain tumour) is that the tumour shapes are most often appear irregular and their contours indistinct. As such, nodes on the contour cannot be easily established and clustered together. In order to cluster a node sets and so segment the glioma image, a novel model together with the method of Nash equilibrium is put forward. Firstly, a model of the Nash equilibrium with double allocation constraints is proposed. Secondly, the principle and formula of the Nash equilibrium based on entropy and standard deviation is proposed. Finally, the determination of the penalty parameter in SVM, using the novel Nash equilibrium to help cluster and segment the glioma image is presented. Experimental results demonstrate that the proposed model and method outperforms other competing methods. It is shown that the method can accurately and correctly segment glioma images.

• Journal Article Type: Article
• Acceptance Date: Oct 11, 2017
• Publication Date: Jun 1, 2018
• Deposit Date: Mar 15, 2018
• Journal: Journal of Medical Imaging and Health Informatics (JMIHI)
• Print ISSN: 2156-7018
• Electronic ISSN: 2156-7026
• Publisher: American Scientific Publishers
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 5
• Pages: 872-880
• Keywords: segmentation, cluster, Nash equilibrium, entropy, SVM
• Public URL: https://uwe-repository.worktribe.com/output/1435352
• Publisher URL: http://www.aspbs.com/jmihi/contents_jmihi2018.htm#v8n5
• Contract Date: Mar 15, 2018