Face Scanning Security System - Biometric Computer Security Systems
Finally, face scanning security system are also one of biometric technologies. Generally, the principle of face scanning security is very similar with fingerprint scanning device, because both of them are scanning the appearance of human body (Biometric Security Technology 2009). It is using the ray to calculate the distance from human’s face to the device, and then supposedly structure an image in the security system. By the comparison with fingerprint, it can catch more characters on user’s face, which can also effectively achieve the requirement of security device.
In contrast, face scanner device also has the same disadvantage with voice security system. Commonly, human’s face changes frequently because of different factors, such as growth, illness or putting on make-up. For this reason, face scanning security system is still rarely used with its shortages.