Fitness posture correction method and device based on posture estimation, equipment and medium

The invention relates to the technical field of human body posture estimation, and discloses a fitness posture correction method and device based on posture estimation, equipment and a medium. The method comprises the following steps: acquiring a human body posture image, and inputting the human body posture image into a target detection network for detection to obtain a target human body image; inputting the target human body image into a root node network for operation processing to obtain a root node three-dimensional coordinate containing depth information; inputting the three-dimensional coordinates of the root articulation point and the target human body image into a posture estimation network for posture estimation to obtain 3D posture estimation to be recognized; and comparing the 3D posture estimation to be recognized with preset standard 3D posture estimation to obtain a comparison result, and outputting a first fitness posture correction suggestion according to the comparison result. According to t