Performance evaluation of feature extraction methods for classifying abnormalities in ultrasound liver images using...

Image analysis techniques have played an important role in several medical applications. In general, the applications involve the automatic extraction of features from the image which is further used for a variety of classification tasks, such as distinguishing normal tissue from abnormal tissue. In this paper, the classification of ultrasonic liver images is studied by using texture features extracted from Laws' method, autocorrelation method, Gabor wavelet and edge frequency method. The features from these methods are used to classify three sets of ultrasonic liver images-normal, cyst and benign and how well they suit in classifying the abnormalities is reported. A neural network classifier is employed to evaluate the performance of these features based on their recognition ability.