A novel circle detection method for iris segmentation

被引：15

作者：

Van Huan, Nguyen ^{[1
]}

Kim, Hakil ^{[1
]}

机构：

[1] Inha Univ, Sch Informat & Commun Engn, Biometr Engn Res Ctr, Inchon, South Korea

来源：

CISP 2008: FIRST INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING, VOL 3, PROCEEDINGS | 2008年

关键词：

D O I：

10.1109/CISP.2008.176

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper introduces a novel approach for iris segmentation. In detecting the inner boundary of the iris, the method introduces a circular filter which is specially designed to detect circular shapes in images. The inner boundary detection process consists of two steps. Firstly, a coarse circle of the pupil is detected by the proposed circular filter after a binarization to the input iris image. Then, the inner boundary is accurately located by applying a modified circular Hough transform in an extracted region from the coarse center. The presented method further proposes a process of extracting the outer boundary of the iris by applying a linear filter to the rectangular areas transformed from arc regions around the iris. Experimental results show promising performances on iris images captured in ideal and non-ideal conditions from the CASIA iris database version 1 and 2.

引用

页码：620 / 624

页数：5

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