Selection of Region of Interest for Calcification in Mammograms

To preprocess mammograms for computer-aided diagnosis,this paper mainly researches the extraction of calcification region in mammograms.After the background segmentation to mammogram,it firstly makes the pick-up of the mammary region by using the improved area extension,and then uses the method of improved unsharp masking for image enhancement in the pick-up of the mammary region.It highlights the region of calcification points,and picks up the region of interest(ROI)which may contain calcification based on the characteristics of calcification and a suitable threshold.The result shows that this method can complete the extraction of calcification region of interest,helping to improve the accuracy of diagnosis of mammary diseases.