Face recognition technology means to match the characteristics of a face to identify or verify an individual. Camera is used to capture an image of the face, which will be processed and analyzed to identify the biometric characteristics and then recorded as a template.

When identification or verification is requested, the camera will capture the face image of user to match with the database templates, the identification or verification is successful when the user face characteristics matches with higher similarity than required.

With the implementation of face recognition system, users can enjoys the advantages of high security without the risks of token being loss or duplicated. Face recognition is currently widely used in access control and criminals detection areas.