Amr R. Abdel-Dayem and Mahmoud R. El-Sakka, "Fuzzy Entropy 
                  Based Detection of Suspicious Masses in Digital Mammogram 
                  Images", International Conference of the IEEE Engineering in 
                  Medicine and Biology Society, pp. 4017 - 4022, September 
                  2005, Shanghai, China.
               
               
               
               Abstract
               
               
               
                  Mammography is the standard method for screening and detecting
                  breast abnormalities. In this paper, we propose a novel scheme
                  for suspicious lesion detection in digital mammograms. The 
                  proposed scheme is based on image thresholding. The optimal 
                  threshold is determined by minimizing the fuzzy entropy of the
                  image. Moreover, the paper introduces a new block-based 
                  performance criterion to compare between the computer 
                  generated and the radiologist segmented images. Experimental 
                  results over a set of sample images showed that the proposed 
                  scheme produces accurate segmentation results when compared 
                  with the manual results produced by radiologists. Hence the 
                  proposed scheme can be used as an effective tool in monitoring
                  and detecting suspicious lesions on digital mammogram images.