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Published in:
Introduction to the Handbook of Iris Recognition Read chapter Read first chapter

2016 | OriginalPaper | Chapter

3. Optics of Iris Imaging Systems

Author : David Ackerman

Published in: Handbook of Iris Recognition

Publisher: Springer London

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Abstract

Iris imaging systems must capture iris images of sufficient quality to populate an enrollment database or to provide probe images that reliably match to existing enrollment images. From whatever distance they are taken, the iris images must therefore resolve information from the iris sufficient for the task of recognition. This chapter reviews concepts of optics and photography needed to specify requirements on the image acquisition components of systems which create iris images for the purpose of recognition. We consider fundamental and practical limitations of components of such systems and consider as examples, iris imaging systems that operate at 0.3 and 3 m on constrained and relatively unconstrained subjects.

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previous chapter A Survey of Iris Biometrics Research: 2008–2010
next chapter Standard Iris Storage Formats
Footnotes
1
In this discussion, we assume that photons that end up in one bucket remain in that bucket. In reality, we need to consider the possibility of photons finding their way into neighboring buckets, an effect that would further degrade spatial resolution.
 
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N. Koren, Understanding image sharpness part 5: lens testing (2003)
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A. Lefohn et al., An ocularist’s approach to human iris synthesis. IEEE Comput. Graph. Appl. 23(6), 70–75 (2003)CrossRef
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A. Muroó et al., The human iris structure and its usages, vol. 39 (2000), pp. 87–95
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R. Trebino, Diffraction and the Fourier Transform (2008)
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Metadata
Title
Optics of Iris Imaging Systems
Author
David Ackerman
Copyright Year
2016
Publisher
Springer London
Book
Handbook of Iris Recognition

Print ISBN: 978-1-4471-6782-2

Electronic ISBN: 978-1-4471-6784-6

Copyright Year: 2016

DOI
https://doi.org/10.1007/978-1-4471-6784-6_3

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