Identification authentication method, device, system and storage medium

The invention relates to an identification authentication method, a device, a system and a storage medium, comprising: spatial coordinates of all real feature points on a user's face are obtained; according to the spatial coordinates of all the real feature points, the corresponding face mesh model is constructed, and the face feature vector is calculated by the face mesh model; the face feature vectors are compared with the pre-stored comparison vectors in turn, and the user identity is confirmed according to the comparison results. The embodiment of the invention obtains the spatial coordinates of the feature points of the user's face, According to the spatial coordinates of each feature point, the corresponding facial feature vectors are obtained, and the comparison between the facial feature vectors and the pre-stored comparison vectors representing different users' faces is carried out, so as to realize the fast recognition and authentication of users' faces, and the recognition accuracy is high, so as t