Behavioral Research in Biometrics: A New Trend

Speaker: Pohsiang Tsai

Affiliation: National Formosa University

Time: Friday 26/08/2011 from 14:00 to 15:00

Venue: Access Grid UWS. Presented from Parramatta (EB.1.32), accessible from Campbelltown (26.1.50) and Penrith (Y239).

Abstract:

Multiple biometrics are used to compensate for the limitations impinging upon uni-modal biometrics. Many fusion or combination techniques of different biometrics have been proposed for personal identification and verification in the past. Among many biometric characteristics, the facial biometric is considered the most un-intrusive single modal technology that can be deployed in the real-world visual surveillance environment. These uni-modal technologies suffer from many variation problems such as pose, illumination, or facial expression due to the real-world unconstrained environment. Considerable research has been done to cope with the variations due to poses and lighting conditions, and multiple biometrics (such as gait and ears) which can be integrated with facial biometrics have been proposed to compensate recognition performance when recognizing faces at a distance. However, little research attention has been paid to facial expression changes. In most literature, facial expression changes are considered as noise that would degrade the recognition performance. However, can these intra-personal variations be used as another behavioral biometric and also be useful for assisting the extra-personal separation to improve personal identification performance? Our hypothesis is that the dynamic information of intra-personal facial behavior could be used not only as another behavioral biometric but also could assist the extra-personal separation for recognition performance improvement. In this talk, I will introduce some work that have been done by us, and more recent works done by others, and finally point out some possible future direction on this topic.

Biography:

Pohsiang Tsai received his Ph.D. in Computing Sciences degree and B.S. (honours) with first class honours from the University of Technology, Sydney, Australia. He was the recipient of the prestigious Australian Postgraduate Award (APA) scholarship. He is currently an Assistant Professor with the Department of Computer Science and Information Engineering (CSIE) at the National Formosa University (NFU), Taiwan and the director of Machine/Human Intelligence and Multimedia (MhIM) lab. Prior to NFU, he held academic positions at the University of Technology, Sydney, Australia, the National Taipei University, and the Hwa-Shia Institute of Technology, Taiwan. His area of expertise includes machine intelligence, biometrics, computer and software engineering, and multimedia. His research interests include biometrical surveillance, network security, educational data mining, and behavioral Informatics. He has been the author or co-author of more than twenty scientific papers on international journals, conferences, and book chapters. He is affiliated with the Institute of Electrical and Electronics Engineers (IEEE), the IEEE Computational Intelligence Society (IEEE-CIS), and Australian Computer Society (ACS). He has been served as the reviewers and committee members for the international prestigious conferences and journals since 2005. He has been selected for inclusion in Marquis Who’s Who in the World, 2011 and 2012.