Method and device for determining three-dimensional coordinate values of hand key points, equipment and medium

The invention provides a method and device for determining three-dimensional coordinate values of key points of a hand, equipment and a medium. According to the specific implementation scheme, a monocular image containing the hand of a user is obtained; inputting the monocular image into a detection network to obtain hand estimation information of the user; wherein the detection network is trained according to a preset standard hand model; the hand estimation information of the user comprises a two-dimensional key point estimated for the hand of the user and a relative depth of a key point estimated for a preset standard hand model relative to a root node; according to the hand estimation information of the user and predetermined hand reference information of the user, determining a three-dimensional coordinate estimation value of a hand three-dimensional key point of the user; wherein the predetermined hand reference information of the user comprises a scaling ratio of the hand of the user relative to a pres