A feature selection method for breast x-ray images based on bfba and elm
An image feature and X-ray technology, applied in the field of image processing, can solve the problems of the analytical method or the bat algorithm easily falling into the local optimal solution, "exponential explosion", etc., and achieve the effect of improving the classification performance, accuracy and classification accuracy.
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[0050] Such as figure 1 , figure 2 Shown, a kind of breast X-ray image feature selection method based on BFBA and ELM of the present invention, concrete steps are as follows: the first step, collect used data set MIAS, i.e. the Mammographic Image Analysis Society, extract the mammographic image feature, and The data set is divided into a training set and a test set. The training set is used to train the extreme learning machine ELM, namely Extreme Learning Machine, to design the ELM classifier, and the test set is used to test the effectiveness of the ELM classifier;
[0051] The method adopted for extracting mammogram image features is a gray-scale co-occurrence matrix, extracting four kinds of statistical parameters: angular second-order moment, entropy, moment of inertia, correlation coefficient, and the direction of the gray-scale co-occurrence matrix is 0°, 45°, 90° °, 135° in four directions; first calculate the gray level co-occurrence matrix in the four directions,...
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