1. BONISSI A, LABATI R D, PERICO L, et al. A preliminary study on continuous authentication methods for photoplethysmographic biometrics [C]//2013 IEEE Workshop on Biometric Measurements and Systems for Security and Medical Applications. Napoli, Italy: IEEE, 2013: 28–33.
2. BRUNELLI R, POGGIO T. Face recognition: Features versus templates [J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1993, 15(10): 1042–1052.
3. WINCHELL S D, RAKVIC R N. Feasibility of iris identification algorithm optimization by fractional template matching [C]//IET Conference on Image Processing. London, UK: IET, 2012: 1–5.
4. HIGGINS A L, BAHLER L G, PORTER J E. Voice identification using nearest-neighbor distance measure [C]//1993 IEEE International Conference on Acoustics, Speech, and Signal Processing. Minneapolis, MN, USA: IEEE, 1993: 375–378.
5. YAMAGUCHI O, FUKUI K, MAEDA K I. Face recognition using temporal image sequence [C]//Proceedings Third IEEE International Conference on Automatic Face and Gesture Recognition. Nara, Japan: IEEE, 1998: 318–323.