Advanced fuzzy cellular neural network: Application to CT liver images

Authors:
Shitong Wang;Duan Fu;Min Xu;Dewen Hu
Affiliations:
School of Information, Southern Yangtze University, Wuxi, Jiangsu 214122, China and Department of Mechanical Engineering and Engineering Management, City University of Hong Kong, Hong Kong, SAR, C ...;School of Information, Southern Yangtze University, Wuxi, Jiangsu 214122, China;School of Information, Southern Yangtze University, Wuxi, Jiangsu 214122, China;College of Mechatronics and Automation, National University of Defense Technology, Changsha 410073, China
Venue:
Artificial Intelligence in Medicine
Year:
2007

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Abstract

Objective: To achieve better boundary integrities and recall accuracies for segmented liver images, use of the advanced fuzzy cellular neural network (AFCNN), as a variant of the fuzzy cellular neural network (FCNN), is proposed to effectively segment CT liver images. Materials and methods: In order to better utilize relevant contour and gray information from liver images, we have improved the FCNN [Wang S, Wang M. A new algorithm NDA based on fuzzy cellular neural networks for white blood cell detection. IEEE Trans Inform Technol Biomed, in press], which proved to be very effective for the segmentation of microscopic white blood cell images, to create the novel neural network, AFCNN. Its convergent property and global stability are proved. Based on the FCNN-based NDA algorithm [Wang S, Wang M. A new algorithm NDA based on fuzzy cellular neural networks for white blood cell detection. IEEE Trans Inform Technol Biomed, in press], we developed the AFCNN-based NDA algorithm, which we used to segment 5 CT liver images. For comparison, we also segmented the same 5 CT liver images using the FCNN-based NDA algorithm. Results and conclusion: : AFCNN has distinct advantages over FCNN in both boundary integrity and recall accuracy. In particular, the performance index Binary_rate is generally much higher for AFCNN than for FCNN when applied to CT liver images.