Abstract
GAC (geodesic active contour) model is the most basic and important image segmentation method based on PDE (partial differential equation), but the smoothness of images has a notable influence on the segmentation result of images, so how to choose a proper smoothing scale is of importance in researches. In this paper, we proposed an integrated gradient vector field instead of single-scaled gradient vector of images, to improve the performance of GAC model. The experimental results show that our method has a faster convergent speed and a better anti-noise ability than the traditional GAC model
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