Blood vessel plaque identification and analysis method based on image processing

The invention relates to a blood vessel plaque recognition and analysis method, in particular to a blood vessel plaque recognition and analysis method based on image processing. The method comprises the following steps: firstly, preprocessing input blood vessels, including images of which the image contrast is enhanced by using adaptive histogram equalization and the noise is removed by using a non-local mean value noise reduction algorithm; then key features of the vascular plaque are extracted through a convolutional neural network, and multi-scale analysis is carried out on the features under different scales through scale invariant feature transformation; then, blood vessels and plaques are distinguished by using a graph cut algorithm, and plaque regions are accurately positioned and segmented in combination with a region growing algorithm; and finally, classifying the extracted plaque features by using a support vector machine classifier, and evaluating the type and severity of the plaque by combining a