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Geodesic Active Contour Based on LBF Method
Pages: 1179-1184
Year: Issue:  12
Journal: Pattern Recognition and Artificial Intelligence

Keyword:  Geodesic Active ContourLocal Binary Fitting MethodEdge Stopping FunctionGradient Descent Flow;
Abstract: It is difficult to get the real boundary of the object with poor boundary using the classical geodesic active contours. To deal with this problem,the local binary fitting( LBF) method and geodesic active contour are combined to propose a geodesic active contour based on LBF method in this paper. Firstly, the energy function of LBF method is normalized to replace the edge stopping function of geodesic active contour. Then,a gradient descent flow is established to urge an active contour to move at the boundary of the object. Finally, simulation experiments are implemented on 5 images with poor boundaries. Experimental results show the proposed model segment objects with poor edge correctly with anti-noise ability and it is insensitive to positions of the initial curve. The proposed model is superior to other improved geodesic active contours.
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