一种非理想采集条件下的虹膜定位算法<sup>*</sup>

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Abstract The existing iris localization algorithms have fine performance for the iris images captured on ideal conditions. However, the captured iris images are greatly influenced by bad conditions, such as different luminance, eyelashes, hair, and glasses frame, which make precise localization be a hard task. To improve the robustness of iris localization, a novel localization algorithm is proposed based on the radial symmetry transform, in which the radial symmetry characteristic of the pupil is fully used to realize iris localization. Experimental results show that the proposed algorithm is robust to the influence of luminance and other complex conditions. Moreover, it realizes precise localization in a real-time system.

Key words： Iris Localization Radial Symmetry Transform NonIdeal Capturing Condition Integral Differential Operator

Received: 19 June 2006

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	Articles by authors
	ZHANG Wen-Cong
	YE Xue-Yi
	LI Bin
	YAO Peng
	ZHUANG Zhen-Quan

Cite this article:

ZHANG Wen-Cong,YE Xue-Yi,LI Bin等. A Robust Iris Localization Algorithm for NonIdeal Capturing Conditions[J]. , 2007, 20(5): 675-680.

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http://manu46.magtech.com.cn/Jweb_prai/EN/ OR http://manu46.magtech.com.cn/Jweb_prai/EN/Y2007/V20/I5/675

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