Robust active contours for mammogram image segmentation

In this paper a new region based active contour method is proposed for mammogram image segmentation. In the formulated energy function, a characteristics function limits the contour evolution inwards. A new SPF function is defined using phase shifted Heaviside function that helps to attain optimum solution in fewer number of iterations. The proposed method is tested on several mammogram images from mini-MIAS database. Quantitative evaluations will demonstrate the efficiency of the proposed method and shows that our method yield better segmented results with high accuracy compared to previous state of art methods.