Neural network positioning swimming crab auxiliary code printing method and system

The invention discloses a neural network positioning swimming crab auxiliary code printing method, and aims to solve the problems that at present, a two-dimensional code mark arranged on a packaging box of a swimming crab is likely to be falsified, and at present, auxiliary code printing mainly depends on a mechanical structure for fixing, so that the living organism positioning effect is poor. The portunus trituberculatus is placed on the holder with the back shell facing upwards; obtaining a swimming crab image, processing the swimming crab image, and inputting the swimming crab image to a key point detection network to obtain key point information; calculating the deviation angle of the swimming crab according to the relationship between the key point information, and adjusting the holder according to the deviation angle of the swimming crab; and after the holder is adjusted, the laser coding module is used for carrying out laser coding. The key point detection network is used for positioning the back shel