Live biometric authenticity check
Harold H Szu, Charles Chia-chuen Hsu, Clifford Szu, Shoujue Wang · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2003
This research defined the underpinning concepts of a system that was highly secure, yet was efficient and non-invasive enough for everyday use. The live biometric authenticity check augmented invariant fingerprints with variable live features offered superior security by combining physical characteristics of the user’s with a passcode (numerical PIN) or passphrase (a string of words), and might also easily be augmented with other biometric video imaging devices for the utmost security.