Audio visual person authentication by multiple nearest neighbor classifiers

  • Authors:
  • Amitava Das

  • Affiliations:
  • Microsoft Research, India, Bangalore, India

  • Venue:
  • ICB'07 Proceedings of the 2007 international conference on Advances in Biometrics
  • Year:
  • 2007

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Abstract

We propose a low-complexity audio-visual person authentication framework based on multiple features and multiple nearest-neighbor classifiers, which instead of a single template uses a set of codebooks or collection of templates. Several novel highly-discriminatory speech and face image features are introduced along with a novel "text-conditioned" speaker recognition approach. Powered by discriminative scoring and a novel fusion method, the proposed MCCN method delivers not only excellent performance (0% EER) but also a significant separation between the scores of client and imposters as observed on trials run on a unique multilingual 120-user audio-visual biometric database created for this research.