Title: An integrated authentication framework based on multi-tier biometrics

Authors: Prasanta Bhattacharya, Praveen Ranjan Srivastava, Abhilash Rajakoti, V. Vasanth Kumar

Addresses: Computer Science and Information Systems Group, Birla Institute of Technology and Science (BITS), Pilani 333031, Rajasthan, India. ' Computer Science and Information Systems Group, Birla Institute of Technology and Science (BITS), Pilani 333031, Rajasthan, India. ' Computer Science and Information Systems Group, Birla Institute of Technology and Science (BITS), Pilani 333031, Rajasthan, India. ' Computer Science and Information Systems Group, Birla Institute of Technology and Science (BITS), Pilani 333031, Rajasthan, India

Abstract: Biometric techniques exploit the human physiological and behavioural traits for verification and identification purposes. Biometrics powered systems make effective use of the face, fingerprint, iris etc. as physiological and signature, gait, posture and voice recognition as behavioural metrics for identification. This paper explains the inadequacy of uni-modal strategies and the pressing need for a multimodal system. The concerns over the cost effectiveness of current multimodal strategies are discussed and a novel tier-based solution is proposed. In this paper, we use a face-ear multimodal biometric framework to demonstrate the efficiency of the tier-based approach and to discuss the template storage aspects.

Keywords: multimodal fusion; ear biometrics; face biometrics; colour spaces; normalisation; 2D Gabor filter; EGT; PSO; template security; multi-tier biometrics; authentication; template storage; enhanced Gabor filter; particle swarm optimisation.

DOI: 10.1504/IJBM.2011.037712

International Journal of Biometrics, 2011 Vol.3 No.1, pp.13 - 39

Published online: 25 Dec 2010 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article