Toward Advanced Security Fingerprint Biometrics Using Super-Resolution Terahertz Microscopy

IF 3.9 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Terahertz Science and Technology Pub Date : 2024-09-19 DOI:10.1109/TTHZ.2024.3465226

Yiran Cui;Panagiotis C. Theofanopoulos;Hrishikesh V. Panchawagh;Georgios C. Trichopoulos

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引用次数: 0

Abstract

We propose a high spatial resolution fingerprint scanning method that utilizes subterahertz (THz) waves to image the finger skin surface and subsurface. The fingerprint is a biomarker widely used as an identifier in security applications. However, current popular fingerprint scanners mostly detect skin surface undulation and hence are vulnerable to spoofing attacks. The proposed approach leverages THz wave penetration into the multilayered skin structure to provide a unique spectral response and enable higher security fingerprint scanning. By implementing an imaging system that scans the fingerprint using a tightly focused THz beam, we present measurement results of an in-vivo finger specimen in the 330–500 GHz range. High-resolution fingerprint images and THz frequency responses are obtained. Besides, two spoof samples are fabricated using latex for comparison. The measurement results show a noticeable discrepancy compared with real skin, which can be used to distinguish fake fingerprints (spoofs).

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利用超分辨率太赫兹显微镜实现先进的安全指纹生物识别技术

我们提出了一种高空间分辨率指纹扫描方法，利用太赫兹（THz）波对手指皮肤表面和表层下进行成像。指纹是一种生物标记，在安全应用中被广泛用作识别标志。然而，目前流行的指纹扫描仪主要检测皮肤表面的起伏，因此容易受到欺骗攻击。所提出的方法利用太赫兹波对多层皮肤结构的穿透力，提供独特的光谱响应，实现安全性更高的指纹扫描。通过使用紧密聚焦的太赫兹光束扫描指纹的成像系统，我们展示了在 330-500 GHz 范围内对活体手指样本的测量结果。我们获得了高分辨率指纹图像和太赫兹频率响应。此外，我们还使用乳胶制作了两个欺骗样本进行对比。测量结果表明，与真实皮肤相比，太赫兹频率响应存在明显差异，可用于辨别假指纹（恶搞指纹）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Terahertz Science and Technology ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

7.10

自引率

9.40%

发文量

102

期刊介绍： IEEE Transactions on Terahertz Science and Technology focuses on original research on Terahertz theory, techniques, and applications as they relate to components, devices, circuits, and systems involving the generation, transmission, and detection of Terahertz waves.