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A Criterion for Analysis of Different Sensor Combinations with an Application to Face Biometrics

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Abstract

In this paper, we propose a criterion for pairwise combination of information from different sensors in order to decide how a given pair of sensors is useful for different applications. This criterion is related to the principle of maximum information preservation. We present experimental results for the case of face images at different spectral bands, which allow for the in advance evaluation of the usefulness of different sensor combinations as well as the possibility for crossed-sensor recognition (matching of images acquired in different spectral bands). The criterion that we propose is a generalization of the Fisher score for the case of mutual information, which is measured as the ratio of the interclass information to the intraclass. The score we propose measures the behavior of a pair of sensors either when they are used in combination or when they are used to discriminate between classes. Based on Information Theory measurements, we conclude that the best spectral band combination always contains the thermal image, while the best combination for crossed-sensor recognition is VIS and NIR.

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Acknowledgments

This work has been supported by COST-2102, FEDER and MEC, TEC2009-14123-C04-04. We also want to acknowledge the COST OC08057 project for providing Jiri’s support. This project was also partially financed by TEC2009-14094-C04-01.

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Authors and Affiliations

  1. EUP Mataró, Avda. Puig i Cadafalch 101, 08303, Mataro, Barcelona, Spain

    Virginia Espinosa-Duró & Marcos Faundez-Zanuy

  2. Faculty of Electrical Engineering and Communication, Department of Telecommunications, Brno University of Technology, Brno, Czech Republic

    Jiří Mekyska

  3. Department Signal Theory and Communications, Universitat Politècnica de Catalunya, Barcelona, Spain

    Enric Monte-Moreno

Authors
  1. Virginia Espinosa-Duró
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  2. Marcos Faundez-Zanuy
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  3. Jiří Mekyska
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  4. Enric Monte-Moreno
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Corresponding author

Correspondence to Marcos Faundez-Zanuy.

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Espinosa-Duró, V., Faundez-Zanuy, M., Mekyska, J. et al. A Criterion for Analysis of Different Sensor Combinations with an Application to Face Biometrics. Cogn Comput 2, 135–141 (2010). https://doi.org/10.1007/s12559-010-9060-5

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  • DOI: https://doi.org/10.1007/s12559-010-9060-5

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