Patent ID: 11915518
Assignee: NEC CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A facial authentication device comprising:
at least one memory configured to store instructions; and
at least one processor configured to execute the instructions to perform:
detecting a plurality of face-feature-point candidates for at least one face feature point of a target face, by applying a plurality of different methods to a plurality of face images of a same face, to acquire statistical information;
calculating a reliability degree for each of the face images, from the statistical information acquired based on the face-feature-point candidates detected by applying the different methods to the face images of the same face;
selecting, based on the reliability degree calculated for each of the face images, which of the face images is to be used in authentication of the target face; and
authenticating the target face by comparing a face image stored in a storage with the selected face image,
wherein the statistical information comprises variance of respective positions of the face-feature-point candidates, and the reliability degree is calculated by using a negative exponential function of an average of the variance.