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Nasal Region Contribution in 3D Face Biometrics Using Shape Analysis Framework

  • Hassen Drira
  • Boulbaba Ben Amor
  • Mohamed Daoudi
  • Anuj Srivastava
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5558)

Abstract

The main goal of this paper is to illustrate a geometric analysis of 3D facial shapes in presence of varying facial expressions using the nose region. This approach consists of the following two main steps: (i) Each nasal surface is automatically denoised and preprocessed to result in an indexed collection of nasal curves. During this step one detects the tip of the nose and defines a surface distance function with that tip as the reference point. The level curves of this distance function are the desired nasal curves. (ii) Comparisons between noses are based on optimal deformations from one to another. This, in turn, is based on optimal deformations of the corresponding nasal curves across surfaces under an elastic metric. The experimental results, generated using a subset of FRGC v2 dataset, demonstrate the success of the proposed framework in recognizing people under different facial expressions. The recognition rates obtained here exceed those for a baseline ICP algorithm on the same dataset.

Keywords

3D face/nose biometrics shape analysis automatic preprocessing 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Hassen Drira
    • 1
  • Boulbaba Ben Amor
    • 1
    • 2
  • Mohamed Daoudi
    • 1
    • 2
  • Anuj Srivastava
    • 3
  1. 1.LIFL (UMR USTL/CNRS 8022)France
  2. 2.Institut TELECOM/TELECOM Lille 1France
  3. 3.Departement of StatisticsFlorida State UniversityTallahasseeUSA

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