Fish swimming speed identification method based on machine vision

The invention relates to a fish swimming speed identification method based on machine vision, and belongs to the field of aquaculture, and the method comprises the following steps: S1, collecting video information, and constructing a fish body target detection model based on the collected video information; s2, constructing a fish body target tracking model, and performing tracking shooting on the fish body in the video information based on the fish body target detection model and the fish body target tracking model to obtain a fish body image; and S3, calculating the fish swimming speed based on the fish body image. The device has the advantages that the swimming distance and speed of the fish in the three-dimensional space are detected through the two cameras which are vertically placed and the target detection technology and the target tracking technology, the speed of the fish is detected in a non-contact mode, the efficiency is high, detection is accurate, the operation difficulty is low, and the detecti