Ultrasonic video identification method and system based on distracted attention

The invention discloses an ultrasonic video identification method and system based on distraction. The method comprises the following steps: acquiring an ultrasonic video; inputting the ultrasonic video into a trained recognition model to obtain a classification prediction result; wherein the recognition model obtains the overall representation of the ultrasonic video by using a plurality of stages, each stage comprises a space-time block representation module, a diffusion window attention module and a space-time block merging module, and the space-time block representation module is used for performing space-time division on the input ultrasonic video to obtain a discrete space-time block set; the diffusion window attention module establishes a distance dependency relationship between space-time blocks by alternately using a fixed window attention mechanism and a diffusion window attention mechanism; and the space-time block merging module is used for downsampling the features output by the diffusion window