Synonym
Wavefront Coded® (Wavefront Coded® is a registered trademark of Omni Vision CDM Optics, Inc.) biometric iris recognition
Definition
Wavefront Coding™ (Wavefront Coding™ is a trademark of Omni Vision CDM Optics, Inc.) is a computational imaging technique capable of increasing the depth of field of an imaging system and increasing the amount of information captured within a given imaging volume. Iris recognition consists of using the unique texture present in the human iris to perform biometric identification. The small size of the texture details compared to the subject standoff distance and normal human motion makes it challenging to capture high quality iris images using traditional imaging techniques. The use of Wavefront Coding alleviates these requirements and shows great performance improvements by reducing the constraints in subject position while maintaining short exposure times during image capture.
Introduction
The human iris has several unique features that make it an...
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Daugman, J.G.: High confidence visual recognition of person by a test of statistical independence. IEEE Trans. PAMI 15, 1148–1161 (1993)
Daugman, J.G.: The importance of being random: statistical principles of iris recognition. Patt. Rec. 36, 279–291 (2003)
Daugman, J.G.: How iris recognition works. IEEE Trans. Circuits and Systems for Video Tech. 14(1), 21–30 (2004)
Gracht, J. van der, Pauca, V.P., Setty, H., Dowski, E.R., Plemmons, R.J., Torgersen, T.C., Prasad, S.: Iris recognition with enhanced depth-of-field image acquisition. In: Proceedings of the SPIE 5358, pp. 120–129. Orlando, FL (2004)
Plemons, R., Horvath, M., Leonhardt, E., Pauca, P., Prasad, S., Robinson, S., Setty, H., Togersen, T., Gracht, J. van der, Dowski, E., Narayanswamy, R., Silveira, P.E.X.: Computational Imaging Systems for Iris Recognition. In: Proceedings of SPIE 5559, pp. 346–357. Denver, CO (2004)
Cathey, W.T., Dowski, E.: A new paradigm for imaging systems. Appl. Opt. 41, 6080–6092 (2002)
Dowski, E., Cathey, W.T.: Extended depth of field through wavefront coding. Appl. Opt. 34, 1859–1866 (1995)
Narayanswamy, R., Baron, A.E., Chumachenco, V., Greengard, A.: Applications of Wavefront Coded Imaging. In: Proceedings of the SPIE 5299, 163–174. Orlando, FL (2004)
Silveira, P.E.X., Narayanswamy, R.: SNR Analysis of Task-based Imaging Systems with Defocus. Appl. Opt. 45, 2924–2934 (2006)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer Science+Business Media, LLC
About this entry
Cite this entry
Silveira, P.E.X., Gao, L., Narayanswamy, R. (2009). Wavefront Coding for Enhancing the Imaging Volume in Iris Recognition. In: Li, S.Z., Jain, A. (eds) Encyclopedia of Biometrics. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-73003-5_216
Download citation
DOI: https://doi.org/10.1007/978-0-387-73003-5_216
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-387-73002-8
Online ISBN: 978-0-387-73003-5
eBook Packages: Computer ScienceReference Module Computer Science and Engineering