USER AUTHENTICATION DEVICE, USER AUTHENTICATION METHOD AND TRAINING METHOD FOR USER AUTHENTICATION

摘要

A user authentication method and user authentication apparatus according to an embodiment obtains an input image including a frontalized user's face, and a value is maintained in a depth image of a frontalized user's face among pixels included in the input image Calculating a confidence map including reliability values for authenticating a user corresponding to pixels, extracting a second feature vector from a second image generated based on the input image and the confidence map, and first corresponding to the registered image A feature vector is obtained, and user authentication is performed based on a correlation between the first feature vector and the second feature vector.