Fish type and number identification monitoring method and system based on underwater video

The invention discloses a fish type and number identification monitoring method and system based on an underwater video, and relates to the technical field of fish type identification, and the method comprises the steps: receiving the underwater video collected by an underwater camera in real time; performing image preprocessing and image enhancement processing on the underwater video, and storing the processed underwater video; carrying out streaming media processing on the preprocessed underwater video through a streaming media service; obtaining an underwater video through streaming media service, performing frame extraction on the underwater video, and calling the large model for identification to obtain a fish type identification result; the large model comprises a plurality of models for different conditions and applications, and the plurality of models can be fused for use; and displaying the underwater video and the fish type identification result through an online monitoring interface. According to t