Steel seal character recognition method and system based on Swin Transform

The invention provides a steel seal character recognition method and system based on Swin Transform, and belongs to the technical field of image recognition. The method comprises the following steps: acquiring a workpiece steel seal image through an acquisition terminal, unifying a format and simplifying data through preprocessing of gray scale transformation, cutting and compression; segmenting a workpiece steel seal image through a DBNet model to obtain a steel seal character image, constructing a training data set, and dividing the training data set into a pre-training part and a fine tuning part; the features of the steel seal character image of the pre-training part are extracted through step-by-step height downsampling by using a Swin Transform model; decoding the feature sequence of the steel seal character image based on CTC loss to obtain an identification result, and training the model until convergence; the model is tested on the steel seal character image of the fine adjustment part, and the fine