NDLI: C16. An efficient iris localization algorithm

Content Provider	IEEE Xplore Digital Library
Author	Essam, M. Fikri, M. Elnaby, M.A. El-Samie, F.E.A.
Copyright Year	2012
Description	Author affiliation: Faculty of Engineering, Cairo University, Cairo, Egypt (Fikri, M.) \|\| Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt (El-Samie, F.E.A.) \|\| Faculty of Engineering, Tanta University, Tanta, Egypt (Essam, M.; Elnaby, M.A.)
Abstract	Iris localization is an important step in iris recognition systems; all the subsequent steps, iris normalization, feature extraction and matching, depend on its accuracy. Traditional iris localization methods often involve an exhaustive search of a three-dimensional parameter space, which is a time consuming process. This paper presents a coarse-to-fine algorithm to address the computational cost problem, while achieving an acceptable accuracy. The iris gray image is transformed to a binary image using an adaptive threshold obtained from analyzing the image intensity histogram. Morphological processing is then used to extract an initial center point, which is considered as the initial center for both pupil and iris boundaries. Finally, a refinement step is made using an integrodifferential operator to get the final iris and pupil centers and radii. This system proves to be robust against occlusions and intensity variations.
Starting Page	285
Ending Page	292
File Size	632297
Page Count	8
File Format	PDF
ISBN	9781467318846
e-ISBN	9781467318877
DOI	10.1109/NRSC.2012.6208534
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-10
Publisher Place	Egypt
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Iris recognition Accuracy Educational institutions Eyelashes Feature extraction Iris Histograms image processing Biometrics iris localization
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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