Human body key point detection method, model training method, medium and equipment

The invention discloses a human body key point detection method, a model training method, a medium and equipment, and the method comprises the steps: firstly extracting an overall feature map of a target training image in a model training stage; detecting the detection frame prediction information of the overall feature map; cutting at least one corresponding local feature map from the overall feature map based on the human body detection frame prediction information and the mapping relationship between the target training image and the overall feature map, and detecting key point prediction information of all the local feature maps. And the computing resources are saved. And finally, calculating a total loss value according to the human body detection frame label, the human body detection frame prediction information, the key point label and the key point prediction information, and iteratively adjusting parameters of the human body key point detection model according to the total loss value until the human