中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Toward Accurate and Fast Iris Segmentation for Iris Biometrics

文献类型:期刊论文

作者He, Zhaofeng1; Tan, Tieniu; Sun, Zhenan; Qiu, Xianchao
刊名IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
出版日期2009-09-01
卷号31期号:9页码:1670-1684
关键词Biometrics iris segmentation reflection removal eyelid localization eyelash and shadow detection edge fitting
英文摘要Iris segmentation is an essential module in iris recognition because it defines the effective image region used for subsequent processing such as feature extraction. Traditional iris segmentation methods often involve an exhaustive search of a large parameter space, which is time consuming and sensitive to noise. To address these problems, this paper presents a novel algorithm for accurate and fast iris segmentation. After efficient reflection removal, an Adaboost-cascade iris detector is first built to extract a rough position of the iris center. Edge points of iris boundaries are then detected, and an elastic model named pulling and pushing is established. Under this model, the center and radius of the circular iris boundaries are iteratively refined in a way driven by the restoring forces of Hooke's law. Furthermore, a smoothing spline-based edge fitting scheme is presented to deal with noncircular iris boundaries. After that, eyelids are localized via edge detection followed by curve fitting. The novelty here is the adoption of a rank filter for noise elimination and a histogram filter for tackling the shape irregularity of eyelids. Finally, eyelashes and shadows are detected via a learned prediction model. This model provides an adaptive threshold for eyelash and shadow detection by analyzing the intensity distributions of different iris regions. Experimental results on three challenging iris image databases demonstrate that the proposed algorithm outperforms state-of-the-art methods in both accuracy and speed.
WOS标题词Science & Technology ; Technology
类目[WOS]Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
研究领域[WOS]Computer Science ; Engineering
关键词[WOS]SPLINE FUNCTIONS ; RECOGNITION ; IMAGES
收录类别SCI
语种英语
WOS记录号WOS:000267369800010
源URL[http://ir.ia.ac.cn/handle/173211/3776]  
专题自动化研究所_智能感知与计算研究中心
作者单位1.Chinese Acad Sci, Inst Automat, Ctr Biometr & Secur Res, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
He, Zhaofeng,Tan, Tieniu,Sun, Zhenan,et al. Toward Accurate and Fast Iris Segmentation for Iris Biometrics[J]. IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,2009,31(9):1670-1684.
APA He, Zhaofeng,Tan, Tieniu,Sun, Zhenan,&Qiu, Xianchao.(2009).Toward Accurate and Fast Iris Segmentation for Iris Biometrics.IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,31(9),1670-1684.
MLA He, Zhaofeng,et al."Toward Accurate and Fast Iris Segmentation for Iris Biometrics".IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE 31.9(2009):1670-1684.

入库方式: OAI收割

来源:自动化研究所

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