K-plet and coupled BFS: a graph based fingerprint representation and matching algorithm

  • Authors:
  • Sharat Chikkerur;Alexander N. Cartwright;Venu Govindaraju

  • Affiliations:
  • Center for Unified Biometrics and Sensors, University at Buffalo, NY;Center for Unified Biometrics and Sensors, University at Buffalo, NY;Center for Unified Biometrics and Sensors, University at Buffalo, NY

  • Venue:
  • ICB'06 Proceedings of the 2006 international conference on Advances in Biometrics
  • Year:
  • 2006

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Abstract

In this paper, we present a new fingerprint matching algorithm based on graph matching principles. We define a new representation called K-plet to encode the local neighborhood of each minutiae. We also present CBFS (Coupled BFS), a new dual graph traversal algorithm for consolidating all the local neighborhood matches and analyze its computational complexity. The proposed algorithm is robust to non-linear distortion. Ambiguities in minutiae pairings are solved by employing a dynamic programming based optimization approach. We present an experimental evaluation of the proposed approach and showed that it exceeds the performance of the NIST BOZORTH3 [3] matching algorithm.