An evaluation of wavelet kernels for palmprint based recognition

Authors:
Atif Bin Mansoor;Hassan Masood;Mustafa Mumtaz;Sameem Shabbir;Shoab A. Khan
Affiliations:
Center for Advanced Studies in Engineering, University of Engineering and Technology, Taxila, Pakistan and National University of Sciences and Technology, Pakistan;National University of Sciences and Technology, Pakistan;National University of Sciences and Technology, Pakistan;National University of Sciences and Technology, Pakistan;Center for Advanced Studies in Engineering, University of Engineering and Technology, Taxila, Pakistan and National University of Sciences and Technology, Pakistan
Venue:
AMDO'10 Proceedings of the 6th international conference on Articulated motion and deformable objects
Year:
2010

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Abstract

Palmprint based Identification is gaining popularity due to its traits like user acceptance, reliability and ease of acquisition. The paper presents a recognition method which extorts textural information obtainable from the palmprint, utilizing different filters of wavelet transform. Palmprint center has been computed using the chessboard metric of Distance Transform whereas the structures of best fitting ellipse help resolve the alignment of the palmprint. Region Of Interest of 256×256 pixels is clipped around the center. Next, normalized directional energy components of the decomposed subband outputs are computed for each block. Biorthogonal, Symlet, Discrete Meyer, Coiflet, Daubechies and Mexican hat wavelets are investigated on 500 palmprints acquired from 50 users with 10 samples each for their individual and concatenated combined features vectors. The performance has been analyzed using Euclidean classifier. An Equal Error Rate (EER) of 0.0217 and Genuine Acceptance Rate (GAR) of 97.12% with combined feature vector formed by Bior3.9, Sym8 and Dmeyer wavelets depict better performance over individual wavelet transforms and combination of coiflet, Daubechies and Mexican hat wavelets.