期刊
ADVANCES IN MECHANICAL ENGINEERING
卷 8, 期 2, 页码 -出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1687814016634243
关键词
Fractional Fourier transform; k-nearest neighbors; abnormal breast; computer-aided diagnosis; mammogram; support vector machine
资金
- NSFC [51407095, 61503188]
- Natural Science Foundation of Jiangsu Province [BK20150983, BK20150982]
- Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing [BM2013006]
- Key Supporting Science and Technology Program (Industry) of Jiangsu Province [BE2012201, BE2013012-2, BE2014009-3]
- Program of Natural Science Research of Jiangsu Higher Education Institutions [15KJB470010, 13KJB460011, 14KJB480004, 14KJB520021]
- Special Funds for Scientific and Technological Achievement Transformation Project in Jiangsu Province [BA2013058]
- Nanjing Normal University Research Foundation for Talented Scholars [2013119XGQ0061, 2014119XGQ0080]
- Open Fund of Guangxi Key Laboratory of Manufacturing System AMP
- Advanced Manufacturing Technology [15-140-30-008K]
Abnormal breast can be diagnosed using the digital mammography. Traditional manual interpretation method cannot yield high accuracy. In this study, we proposed a novel computer-aided diagnosis system for detecting abnormal breasts. Our dataset contains 200 mammogram images with size of 1024 x 1024. First, we segmented the region of interest from mammogram images. Second, the fractional Fourier transform was employed to obtain the unified time-frequency spectrum. Third, spectrum coefficients were reduced by principal component analysis. Finally, both support vector machine and k-nearest neighbors were used and compared. The proposed weighted-type fractional Fourier transform + principal component analysis + support vector machine achieved sensitivity of 92.22% +/- 4.16%, specificity of 92.10% +/- 2.75%, and accuracy of 92.16% +/- 3.60%. It is better than both the proposed weighted-type fractional Fourier transform+principal component analysis + k-nearest neighbors and other five state-of-the-art approaches in terms of sensitivity, specificity, and accuracy. The proposed computer-aided diagnosis system is effective in detecting abnormal breasts.
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