Detection model training method and system, detection method and system and storage medium

The invention discloses a training method, a detection method, a system and a storage medium of a battery pole piece surface defect detection model, and relates to the technical field of battery pole piece surface detection, and the detection method comprises the steps: obtaining a normal sample image, synthesizing a preset defect into the normal sample image, and obtaining a synthesized defect image; preprocessing the synthetic defect image to obtain a preprocessed synthetic defect image; inputting the preprocessed synthetic defect image into an image reconstruction module to obtain a reconstructed image corresponding to the synthetic defect image output by the image reconstruction module; and inputting the synthesized defect image and the reconstructed image into an image segmentation module to obtain a defect mask corresponding to the synthesized defect image output by the image segmentation module. According to the invention, the image reconstruction module can be prevented from generating model degradati