Patent ID: 7974446

Claim:
A face authentication system, comprising: a data input section for obtaining three-dimensional data concerning a face area of a subject at multiple points; and a processor for performing a registration process or a verification process of authentication data of the subject based on the three-dimensional data, the processor including: a quality rater for rating a quality of the three-dimensional data with respect to a specified number of points of the three-dimensional data to generate quality data; a quality distribution deriving section for deriving a distribution of the quality with respect to the face area, based on the quality data; and a judging section for judging whether the registration process or the verification process is to be executed, based on a result on the quality distribution derived by the quality distribution deriving section, the judging section performing the judgment based on a localization degree with respect to a part of the face area where the quality of the three-dimensional data is rated to be low, and a ratio of the part of the face area where the quality of the three-dimensional data is rated to be low relative to the face area.