Wavelet Packet Based IRIS Texture Analysis for Person Authentication

Abstract

There is considerable rise in the research of iris recognition system over a period of time. Most of the researchers has been focused on the development of new iris pre-processing and recognition algorithms for good quail iris images. In this paper, iris recognition system using Haar wavelet packet is presented. Wavelet Packet Transform (WPT) which is extension of discrete wavelet transform has multi-resolution approach. In this iris information is encoded based on energy of wavelet packets.. Our proposed work significantly decreases the error rate in recognition of noisy images. A comparison of this work with non-orthogonal Gabor wavelets method is done. Computational complexity of our work is also less as compared to Gabor wavelets method. KEYWORDS Biometrics, Iris recognition, Iris segmentation, Iris normalization, Wavelet packet.