Encyclopedia of Biometrics

2009 Edition
| Editors: Stan Z. Li, Anil Jain

Iris Device

  • James R. Matey
Reference work entry
DOI: https://doi.org/10.1007/978-0-387-73003-5_16



An iris device is a device that acquires images of the iris for use in biometric recognition. More commonly referred to as iris cameras, readers or scanners, these devices typically include some form of active near infrared illumination (NIR), since the current iris recognition algorithms were designed for NIR images of the eye. In addition, the device may include features to aid subjects in properly aligning their eyes in the field of view, spoofing countermeasures, and on board processing of the acquired images.


Iris recognition is one of the strongest biometrics available [1, 2, 3, 4]. Iris recognition is a strong biometric because: (1) the human iris is a complex structure with a high degree of randomness; (2) the iris is protected; (3) the iris is accessible; and (4) the structures of the iris that are used for iris recognition are stable, from early childhood on –...

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • James R. Matey
    • 1
  1. 1.Electrical and Computer Engineering DepartmentUS Naval AcademyAnnapolisUSA