LOGO recognition method based on attention mechanism image retrieval

The invention discloses a LOGO recognition method based on attention mechanism image retrieval, and the method comprises the steps: judging whether there is a LOGO or not through obtaining an area containing the LOGO in an image, intercepting the area containing the LOGO in the image, and obtaining a feature tensor of the area containing the LOGO through a feature extraction network; and performing feature compression on the feature tensor containing the LOGO region to obtain a feature vector, performing feature space distance operation on the feature vector containing the LOGO region and thefeature vector of the LOGO in the image library, selecting an image with the shortest distance as the matched LOGO, reading a label corresponding to a feature code of the matched LOGO, storing the label in an image library, and determining the label of the LOGO by taking the label matched with the LOGO as the label of the LOGO to be identified. Under the logic, the situation that no LOGO exists can be filtered, the invali