Liver segmentation in CT images for intervention using a graph-cut based model

Authors:
Yufei Chen;Weidong Zhao;Qidi Wu;Zhicheng Wang;Jinyong Hu
Affiliations:
Research Center of CAD, Tongji University, Shanghai, China and The Engineering Research Center for Enterprise Digital Technology, Ministry of Education, Tongji University, Shanghai, China;Research Center of CAD, Tongji University, Shanghai, China and The Engineering Research Center for Enterprise Digital Technology, Ministry of Education, Tongji University, Shanghai, China;Research Center of CAD, Tongji University, Shanghai, China and The Engineering Research Center for Enterprise Digital Technology, Ministry of Education, Tongji University, Shanghai, China;Research Center of CAD, Tongji University, Shanghai, China and The Engineering Research Center for Enterprise Digital Technology, Ministry of Education, Tongji University, Shanghai, China;Research Center of CAD, Tongji University, Shanghai, China and The Engineering Research Center for Enterprise Digital Technology, Ministry of Education, Tongji University, Shanghai, China
Venue:
MICCAI'11 Proceedings of the Third international conference on Abdominal Imaging: computational and Clinical Applications
Year:
2011

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Abstract

Liver segmentation in computerized tomography (CT) images has been widely studied in recent years, of which the graph cut models demonstrate a great potential with the advantage of global optima and practical efficiency. In this paper, a graph-cut based model for liver CT segmentation is presented. The image is interpreted as a graph, that the segmentation problem is then casted as an optimal cut on the graph. An energy function is then formulated for minimization, which combines both regional properties and boundary smoothness. The prior knowledge on liver is unified into the energy function via fuzzy similarity measure. Finally, the optimal cut can be computed through the max-flow algorithm. Experiments on a variety of CT images show its effectiveness and efficiency.