%0 Journal Article %A M. Bastanfard and S. Jafari and B.Jalaeian %D 2007 %J International Journal of Aerospace and Mechanical Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 3, 2007 %T Analysis of Sonographic Images of Breast %U https://publications.waset.org/pdf/1196 %V 3 %X Ultrasound images are very useful diagnostic tool to distinguish benignant from malignant masses of the breast. However, there is a considerable overlap between benignancy and malignancy in ultrasonic images which makes it difficult to interpret. In this paper, a new noise removal algorithm was used to improve the images and classification process. The masses are classified by wavelet transform's coefficients, morphological and textural features as a novel feature set for this goal. The Bayesian estimation theory is used to classify the tissues in three classes according to their features. %P 677 - 680