This invention provides a
medical ultrasound image recognition method based on generator domain alignment, relating to the field of image classification technology. The method includes: creating labeled generated
medical ultrasound image samples for fine-tuning using a conditional
diffusion model, where labels characterize the category corresponding to the generated
medical ultrasound image sample; aligning each labeled generated medical
ultrasound image sample to the generator domain using an unconditional
diffusion model of the generator domain, obtaining a generator domain medical
ultrasound image set; fine-tuning the source
domain model using the generator domain medical
ultrasound image set, obtaining a generator
domain model; aligning a target medical
ultrasound image to the generator domain using the unconditional
diffusion model of the generator domain, obtaining a generator domain target medical
ultrasound image; and inputting the generator domain target medical
ultrasound image into the generator
domain model to obtain a first predicted
classification result for the target medical ultrasound image. This transforms a cross-domain task into an intra-
domain prediction task, aligning both the source domain model and the target data to the same generator domain, thereby achieving accurate predicted classification results.