Face recognition system, face matching apparatus, face recognition method, and storage medium

A face recognition method comprising:

• reading, by a reader, first identification information from a medium carried by an authentication subject, the reader being installed in a gate configured to allow an authentication subject to enter an inside of a facility;
• controlling an image capturer to capture a plurality of images before the reader reads the first identification information;
• detecting, as a plurality of detected face images, a face image from the plurality of images acquired by the image capturer;
• determining if a face image associated with identification information that corresponds to the read first identification information has been already registered in the server;
• matching the plurality of detected face images with a registered face image, the detected face image captured before the reader reads the first identification information;
• and
• when there is no registered face image associated with the first identification information in a server, register in the server, the detected face image captured by the image capturer in association with the first identification information, and when receiving a signal indicating that registering the detected face image is completed open the gate to allow the authentication subject to enter the inside of the facility,
• wherein the method further comprises:
• capturing the plurality of images at a predetermined cycle,
• acquiring the plurality of images in synchronization with the predetermined cycle, and
• detecting, as the plurality of detected face images, the face image from the plurality of images acquired in synchronization with the predetermined cycle.

A non-transitory storage medium in which a program is stored, wherein the program causes a computer to execute:

• controlling a reader to read first identification information from a medium carried by an authentication subject, the reader being installed in a gate configured to allow an authentication subject to enter an inside of a facility;
• controlling an image capturer to capture a plurality of images before the reader reads the first identification information;
• detecting, as a plurality of detected face images, from the plurality of images acquired by the image capturer;
• determining if a face image associated with identification information that corresponds to the read first identification information has been already registered in the server;
• matching the plurality of detected face images with a registered face image, the detected face image captured before the reader reads the first identification information;
• and
• when there is no registered face image associated with the first identification information in a server, register in the server, the detected face image captured by the image capturer in association with the first identification information, and when receiving a signal indicating that registering the detected face image is completed and open the gate to allow the authentication subject to enter the inside of the facility,
• wherein the method further comprises:
• capturing the plurality of images at a predetermined cycle,
• acquiring the plurality of images in synchronization with the predetermined cycle, and
• detecting, as the plurality of detected face images, the face image from the plurality of images acquired in synchronization with the predetermined cycle.