Method, system and terminal for identity authentication, and computer readable storage medium

A system for identity authentication, comprising:

• one or more processors;
• and
• a storage device configured to store one or more programs, wherein
• the one or more programs, when executed by the one or more processors, enable the one or more processors to:
• acquire a human body image of a person to be authenticated, and determine from the human body image a plurality of skeleton key points of the person to be authenticated;
• convert the skeleton key points into feature data, and combine the feature data to form physique feature information characterizing the person to be authenticated;
• process the physique feature information using a physique feature model by inputting the physique feature information into the physique feature model, to obtain a processing result;
• and
• recognize the identity of the person to be authenticated based on the processing result of the physique feature model,
• wherein the one or more programs, when executed by the one or more processors, enable the one or more processors further to:
• define a plurality of feature points based on the human body image, each of the feature points having a function;
• and
• for each of feature points, performing operations on all the skeleton key points according to the function of the feature point, and summing up the results of the operations performed on all the skeleton key points according to the function, to obtain one of the feature data corresponding to the feature point.