Analysis of the Performance of Classifiers on Wavelet Features with PCA and GA for the Detection of Breast Cancer in Ultrasound Images
Journal Title: IOSR journal of VLSI and Signal Processing - Year 2018, Vol 8, Issue 1
Abstract
Breast cancer is the most commonly diagnosed life threatening cancer in women worldwide. Breast cancer is the leading cause of cancer death among women. Early detection is of great significance and essential to the treatment of breast cancer. Ultrasonography is one of the most widespread imaging modality used to detect and classify abnormalities of the breast. This paper proposes the use of wavelet transform and its coefficients as texture features for the detection of abnormalities in the breast. Gray level co-occurrence matrix is computed from wavelet coefficients at two levels. Principal component analysis and genetic algorithms are used for feature reduction and selection. Support vector machine (SVM) and Naïve Bayes (NB) are used to differentiate benign and malignant lesions. Their performances are evaluated using diagnostic accuracy, sensitivity, specificity, positive predictive value, negative predictive value and Mathew’s correlation coefficient. The proposed method results in high classification accuracy of 98.57% in a data set containing 70 (30 benign and 40 malignant) breast ultrasound images. Results indicate that the proposed features can effectively characterize the properties of breast lesions in ultrasound images.
Authors and Affiliations
Nanda S1 ,, Sukumar M2
Keywords
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