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Stable EEG Features for Biometric Recognition in Resting State Conditions

  • Daria La Rocca
  • Patrizio Campisi
  • Gaetano Scarano
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 452)

Abstract

In this paper electroencephalogram (EEG) signals are studied to extract biometric traits for identification of users. Different recording sessions separated in time are considered in order to infer about usability of EEG biometrics in real life applications. The aim of this work is to provide a representation of the data and a classification approach which would show repeatability of the EEG features employed in the proposed framework. The brain electrical activity has already shown some potentials to allow automatic user recognition, but an extensive analysis of EEG data aiming at retain stable and distinctive features is still missing. In this contribution we test the invariance over time of the discriminant power of the employed EEG features, which is a relevant property for a biometric identifier to be employed in real life applications. The enrolled healthy subjects performed resting state recordings on two different days. Combinations of different electrodes and spectral subbands have been analyzed to infer about the distinctiveness of different topographic traits and oscillatory activities. Autoregressive statistical modeling using reflection coefficients has been adopted and a linear classifier has been tested. The observed results show that a high degree of accuracy can be achieved considering different acquisition sessions for the enrollment and the testing stage. Moreover, a proper information fusion at the match score level showed to improve performance while reducing the sample size used for the testing stage.

Keywords

EEG Biometrics Repeatability Resting Fusion 

Notes

Acknowledgements

We would like to thank Prof. F. Babiloni, University of Rome “Sapienza”, and the Neuroelectrical Imaging and BCI Lab RCCS Fondazione Santa Lucia, Rome, for providing the dataset used in the presented analysis.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Daria La Rocca
    • 1
  • Patrizio Campisi
    • 1
  • Gaetano Scarano
    • 2
  1. 1.Section of Applied Electronics, Department of EngineeringUniversity of Roma TreRomaItaly
  2. 2.DIETSapienza Università di RomaRomaItaly

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