License plate recognition model generation method, license plate recognition method, device and storage medium

The invention discloses a license plate recognition model generation method. The method comprises the following steps: acquiring a training license plate image, and a feature graph tensor and a text label of the training license plate image; the training license plate image is spliced with the layer as the unit, the processed image and the feature graph tensor of the processed image are determined, and the training license plate is composed of at least one layer of characters; and according to the feature graph tensor and the text label of the processed image, updating the network weight of the training license plate image so as to generate a license plate recognition model. According to the method and the device, the training license plate images can be spliced by taking layers as units, so that unified end-to-end identification on the existing single-layer license plate and double-layer license plate is realized, and the size of the processed image is controlled through the feature graph tensor of the image