Provided are a 3D face identity authentication method and apparatus. The method comprises the following steps: obtaining a depth image and a two-dimensional image which include a target face; performing registration on the depth image and a reference face 3D texture image, so as to obtain pose information of the target face; using the reference face 3D texture image to project a reference face two-dimensional image according to the pose information; performing similarity comparison on a target face two-dimensional image and the reference face two-dimensional image. The method combines 3D information and projection to obtain a complete reference face two-dimensional image in order to increase recognition accuracy. The method also comprises steps of eye line of sight detection, liveness detection and data updating in order to improve user examination, reduce false recognition rates and tackle problems such as facial changes.
3D FACE IDENTITY AUTHENTICATION METHOD AND APPARATUS