Patent ID: 11861939
Assignee: NEC CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A face authentication system comprising:
a camera configured to capture second and third face images of a target;
a reader configured to read out a first face image from an identification document or an integrated circuit (IC) chip embedded within the identification document;
a display;
a memory storing instructions; and
a processor configured to execute the instructions to:
acquire the first face image of the target from the reader;
after acquiring the first face image, modify the first face image in which an object worn by the target is emphasized when the first face image includes the target wearing the object, and cause the display to display the modified first face image;
after causing the display to display the modified first face image, cause the camera to capture the second face image of the target standing in front of the camera;
detect a difference between the first face image and the second face image;
cause the display to display, based on the detected difference, first guidance that recommends the target to take off the object worn by the target;
perform a face authentication using the first face image and the third face image captured by the camera after the first guidance is output; and
control an opening and closing of a gate according to a result of the face authentication, such that opening of the gate is permitted when the face authentication is successful, and such that opening of the gate is not permitted when the face authentication is unsuccessful.