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Wavelet-based Feature Extraction Algorithm for an Iris Recognition System

  • Panganiban, Ayra (School of Electical, Electronics and Computer Engineering, Mapua Institute of Technology) ;
  • Linsangan, Noel (School of Electical, Electronics and Computer Engineering, Mapua Institute of Technology) ;
  • Caluyo, Felicito (School of Electical, Electronics and Computer Engineering, Mapua Institute of Technology)
  • Received : 2011.02.07
  • Accepted : 2011.05.16
  • Published : 2011.09.30

Abstract

The success of iris recognition depends mainly on two factors: image acquisition and an iris recognition algorithm. In this study, we present a system that considers both factors and focuses on the latter. The proposed algorithm aims to find out the most efficient wavelet family and its coefficients for encoding the iris template of the experiment samples. The algorithm implemented in software performs segmentation, normalization, feature encoding, data storage, and matching. By using the Haar and Biorthogonal wavelet families at various levels feature encoding is performed by decomposing the normalized iris image. The vertical coefficient is encoded into the iris template and is stored in the database. The performance of the system is evaluated by using the number of degrees of freedom, False Reject Rate (FRR), False Accept Rate (FAR), and Equal Error Rate (EER) and the metrics show that the proposed algorithm can be employed for an iris recognition system.

Keywords

Biometrics;Degrees of Freedom;Iris Recognition;Wavelet

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