探索900纳米以上的多光谱虹膜识别

2009 IEEE 3rd International Conference on Biometrics: Theory, Applications, and Systems Pub Date : 2009-09-28 DOI:10.1109/BTAS.2009.5339072

A. Ross, R. Pasula, L. Hornak

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引用次数: 82

摘要

大多数虹膜识别系统在电磁波谱的700nm-900nm范围内获取眼睛的图像。在这项工作中，虹膜的波长超过900纳米。目的是了解较长波长的虹膜结构，并确定进行跨光谱虹膜匹配的可能性。首先设计了一种用于在950 nm - 1650 nm范围内对虹膜进行窄光谱成像的采集系统。接下来，采集25名受试者的左右虹膜图像进行分析。最后，研究了在匹配分数水平上进行跨光谱匹配和多光谱融合的可能性。实验结果表明:(a)利用InGaAs探测器获取900nm以上波长虹膜图像的可行性;(b)在不同波长下观察虹膜解剖结构不同的可能性;(c)进行交叉光谱匹配和多光谱融合以增强虹膜识别的潜力。

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Exploring multispectral iris recognition beyond 900nm

Most iris recognition systems acquire images of the eye in the 700nm–900nm range of the electromagnetic spectrum. In this work, the iris is examined at wavelengths beyond 900nm. The purpose is to understand the iris structure at longer wavelengths and to determine the possibility of performing cross-spectral iris matching. An acquisition system is first designed for imaging the iris at narrow spectral bands in the 950 nm–1650 nm range. Next, the left and right images of the iris are acquired from 25 subjects in order to conduct the analysis. Finally, the possibility of performing cross-spectral matching and multispectral fusion at the match score level is investigated. Experimental results suggest: (a) the feasibility of acquiring iris images in wavelengths beyond 900nm using InGaAs detectors; (b) the possibility of observing different structures in the iris anatomy at various wavelengths; and (c) the potential of performing cross-spectral matching and multispectral fusion for enhanced iris recognition.

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2009 IEEE 3rd International Conference on Biometrics: Theory, Applications, and Systems

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