Rapid and brief communication: Discriminative multimodal biometric authentication based on quality measures

  • Authors:
  • Julian Fierrez-Aguilar;Javier Ortega-Garcia;Joaquin Gonzalez-Rodriguez;Josef Bigun

  • Affiliations:
  • Escuela Politecnica Superior, Universidad Autonoma de Madrid, Ctra. Colmenar km. 15, E-28049 Madrid, Spain;Escuela Politecnica Superior, Universidad Autonoma de Madrid, Ctra. Colmenar km. 15, E-28049 Madrid, Spain;Escuela Politecnica Superior, Universidad Autonoma de Madrid, Ctra. Colmenar km. 15, E-28049 Madrid, Spain;Halmstad University, Box 823, S-301 18 Halmstad, Sweden

  • Venue:
  • Pattern Recognition
  • Year:
  • 2005

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Abstract

A novel score-level fusion strategy based on quality measures for multimodal biometric authentication is presented. In the proposed method, the fusion function is adapted every time an authentication claim is performed based on the estimated quality of the sensed biometric signals at this time. Experimental results combining written signatures and quality-labelled fingerprints are reported. The proposed scheme is shown to outperform significantly the fusion approach without considering quality signals. In particular, a relative improvement of approximately 20% is obtained on the publicly available MCYT bimodal database.