期刊
JOURNAL OF MEDICAL SYSTEMS
卷 40, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1007/s10916-016-0454-0
关键词
Breast cancer; Computer-aided diagnosis; Feature extraction; Classification; Generalized pseudo-Zernike moments
In this paper, a novel framework of computer-aided diagnosis (CAD) system has been presented for the classification of benign/malignant breast tissues. The properties of the generalized pseudo-Zernike moments (GPZM) and pseudo-Zernike moments (PZM) are utilized as suitable texture descriptors of the suspicious region in the mammogram. An improved classifier-adaptive differential evolution wavelet neural network (Ada-DEWNN) is proposed to improve the classification accuracy of the CAD system. The efficiency of the proposed system is tested on mammograms from the Mammographic Image Analysis Society (mini-MIAS) database using the leave-one-out cross validation as well as on mammograms from the Digital Database for Screening Mammography (DDSM) database using 10-fold cross validation. The proposed method on MIAS-database attains a fair accuracy of 0.8938 and AUC of 0.935 (95 % CI=0.8213-0.9831). The proposed method is also tested for in-plane rotation and found to be highly rotation invariant. In addition, the proposed classifier is tested and compared with some well-known existing methods using receiver operating characteristic (ROC) analysis using DDSM-database. It is concluded the proposed classifier has better area under the curve (AUC) (0.9289) and highly precised with 95 % CI, 0.8216 to 0.9834 and 0.0384 standard error.
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