A new active contour model for tumor segmentation

In this paper, a new energy function has been proposed for tumor segmentation implemented by the level set method. Multi-scale Gaussian filter is applied to the image and its output determines the probability of each pixel belonging to the tumor structure. Introducing the output into the energy function makes the model robust against the inhomogeneous background. Experimental results from MRI verify the desirable performance of the proposed model in comparison with other methods.