TY - JOUR T1 - A New Automated CAD System for Classification of Malignant and Benign Lesions AU - Ayed, Norhene Gargouri Ben AU - Masmoudi, Alima Damak AU - Masmoudi, Dorra Sellami JO - Asian Journal of Information Technology VL - 13 IS - 9 SP - 477 EP - 484 PY - 2014 DA - 2001/08/19 SN - 1682-3915 DO - ajit.2014.477.484 UR - https://makhillpublications.co/view-article.php?doi=ajit.2014.477.484 KW - CAD KW -IANGLLD KW -mass texture extraction KW -digital database KW -DDSM AB - This study presents a completely automated Computer-Aided Diagnostic (CAD) System for mass detection, segmentation and classification. This system performs mass detection followed by the classification as benign-malignant on the detected and segmented masses. In order to make mass detection more effective, a sequence of preprocessing steps are designed for contrast enhancement and noise effects removal as well as the effectiveness of the stage of detection. The location of suspicious masses using a new approach named Improved Against Noise Gray Level and Local Difference (IANGLLD) is developed for mass texture extraction. As the shapes of masses are fundamental in the classification between benignancy and malignancy, two shape features are used and joined with the texture features applied in mass detection to be the input of the ANN for mass classification. For the evaluation of the proposed system the Digital Database for Screening Mammography (DDSM) was applied to evaluate the performance. The obtained results are encouraging and have revealed promise of the proposed system. ER -