Non-circular iris contours localization in the visible wavelength eye images

被引：10
作者：
Jan, Farmanullah [1 ]
机构：
[1] COMSATS Inst Informat Technol, Dept Phys, Pk Rd, Islamabad 44000, Pakistan
来源：
COMPUTERS & ELECTRICAL ENGINEERING | 2017年 / 62卷
关键词：
Biometric systems; Machine vision; Iris recognition; Iris localization; Pattern recognition; RECOGNITION; SEGMENTATION; ALGORITHM;
D O I：
10.1016/j.compeleceng.2016.11.031
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Contempormy iris localization schemes perform well for ideal eye images generally acquired using near infrared (NIR) illumination, but perform poorly for non-ideal eye images acquired using Visible Wavelength (VW) illumination. Non-ideal eye images contain noise such as non-uniform illumination, defocus, etc. This study proposes a reliable iris localization algorithm, in particular for VW eye images. First, it suppresses light reflections and sharp intensity variations in the Red-component of input color eye image. Next, it marks a set of potential pixels (ROIpixels) suitable as the iris center's candidates. Using ROIpixels, it localizes potential iris location using a hybrid of Integro-differential operator (IDO) and image intensity. Then, it reuses IDO and iris/pupil's geometry to localize pupil within iris. Finally, it uses the Fourier series based scheme to regularize iris contours. Experimental results obtained on UBIRIS V1.0, MMU V1.0, and IITD V1.0 iris databases demonstrate its superior performance compared with contemporary schemes. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：166 / 177
页数：12
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