@inproceedings{932e50154a734a538d127b2f116ad815,
title = "Pan-tilt-zoom based iris image capturing system for unconstrained user environments at a distance",
abstract = "This paper proposes a novel iris image capturing system using a pantilt-zoom camera for unconstrained user environments at a distance. To provide wide operating range, we are trying to develop iris image acquisition system using pan-tilt-zoom camera. This paper verifies that iris recognition is possible when iris images are captured with zoom lens at a distance from camera. Iris images are collected by changing the distance from camera to user, zoom factor to maintain face size in an image, and focus lens position. And they are assessed by Hamming distance. Experimental results show that iris images captured at a distance of 1.5-3 m from camera can be verified as genuine and proposed system has 5-10 cm depth of field. This means that users have freedom of position as 1.5 m and natural movement of a standing user can be covered.",
keywords = "Depth of field, Depth of focus, Iris image capturing system, Operating range, Pan-tilt-zoom camera",
author = "Sowon Yoon and Kwanghyuk Bae and Park, {Kang Ryoung} and Jaihie Kim",
year = "2007",
doi = "10.1007/978-3-540-74549-5_69",
language = "English",
isbn = "9783540745488",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "653--662",
booktitle = "Advances in Biometrics - International Conference, ICB 2007, Proceedings",
address = "Germany",
note = "2007 International Conference on Advances in Biometrics, ICB 2007 ; Conference date: 27-08-2007 Through 29-08-2007",
}