The invention discloses a method for authenticating human-
face identity based on three-dimensional
model reconstruction. In the method for authenticating human-
face identity, three-dimensional human-face models are reconstructed according to a photo on an identity card and a real-time video respectively, and a three-dimensional geometrical characteristic matching strategy is used for authenticating human-
face identity. The method for authenticating human-face identity comprises the steps of: (1) reconstructing a three-dimensional human-
face model according to the photo on the identity card byadopting a non-linear optimization
algorithm based on a three-dimensional deformation base; (2) reconstructing a three-dimensional human-
face model according to a real-time video by adopting a methodfor recovering a non-
rigid body three-dimensional shape from the movement; and (3) authenticating through three-dimensional human-
face matching according to the geometrical characteristics. The method for authenticating human-face identity can be used for supporting a user to authenticate by a second-generation identity card and a video of the human-face, greatly improves the contrast accuracy and efficiency, and enables the method for portrait contrast by using a computer to become a feasible technology.