Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/50976
Title: Medical image segmentation using feature-based GVF snake.
Authors: Ng, H.P.
Foong, K.C. 
Ong, S.H. 
Goh, P.S.
Nowinski, W.L. 
Issue Date: 2007
Source: Ng, H.P.,Foong, K.C.,Ong, S.H.,Goh, P.S.,Nowinski, W.L. (2007). Medical image segmentation using feature-based GVF snake.. Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2007 : 800-803. ScholarBank@NUS Repository.
Abstract: We propose a feature-based GVF snake for medical image segmentation here. Feature-based criteria are introduced for the GVF snake to stop its iterations. Without these criteria, the GVF snake might continue its iterations even though it has converged at the targeted object and result in longer computational time. The feature here is the area of the targeted object. Our proposed method comprises of two stages, namely the training stage and the segmentation stage. In the training stage, we acquire prior knowledge on the relative area of the targeted object from training data. In the segmentation stage, the proposed feature-based GVF snake is applied to segment the object from the image after computing the estimated area of the targeted object. In our proposed method, the GVF snake stops its iterations when the area bounded by its propagation is approximately equal to the estimated area and when it undergoes little change over two consecutive iterations. To illustrate the effectiveness of our proposed method, we applied it to the segmentation of the masseter muscle, which is the strongest jaw muscle, from 2-D magnetic resonance (MR) images. Numerical evaluation done indicates good agreement between the computerized and manual segmentations, with mean overlap of 92%.
Source Title: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
URI: http://scholarbank.nus.edu.sg/handle/10635/50976
ISSN: 1557170X
Appears in Collections:Staff Publications

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