计算机工程与应用2012，Vol.48Issue(4)：193-196,4.DOI:10.3778/j.issn.1002-8331.2012.04.057
一种基于形态学的虹膜定位快速算法
Fast iris localization algorithm based on morphology
摘要
Abstract
This paper presents a fast iris localization algorithm based on morphology concerning problems that iris pattern which is disturbed by eyelid, eyelash and faucal, localization with low-speed and low accuracy, etc. It employs gray projection algorithm and morphology to realize coarse localization of the pupil and carries out fine localization to both inner and outer iris circles within a small range by using both Hough algorithm and circumference differential algorithm. It adopts improved template algorithm and circumference gradient algorithm to locate eyelid. It uses gray threshold algorithm combined with morphology to detect eyelash. The experimental results show that the proposed method achieves excellent results in terms of both speed and accuracy for localization.关键词
虹膜定位/Hough算法/圆周差分算法/模板检测/灰度投影Key words
iris localization/ Hough algorithm/ circumference differential algorithm/ template detect/ gray projection分类
信息技术与安全科学引用本文复制引用
彭建,向军..一种基于形态学的虹膜定位快速算法[J].计算机工程与应用,2012,48(4):193-196,4.基金项目
湖南省自然科学基金(No.09JJ3120) （No.09JJ3120）
湖南省科技计划项目(No.2009GK3012). （No.2009GK3012）
