arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.07989cs.CVcs.LG
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基于卷积自编码器的指纹呈现攻击异常检测

Anomaly Detection with Convolutional Autoencoders for Fingerprint Presentation Attack Detection

Hochschule Darmstadt(达姆施塔特应用科学大学);Hochschule Ansbach(安斯巴赫应用科学大学);NTNU(挪威科技大学)

Jascha Kolberg, Marcel Grimmer, Marta Gomez-Barrero, Christoph Busch

摘要:

近年来,基于指纹的生物识别认证系统的普及程度显著提高。然而,尽管有许多优点,生物识别系统仍然容易受到呈现攻击(PA)。特别是,这适用于无监督的应用程序,其中可能发生系统操作员未知的新攻击。因此,呈递攻击检测(PAD)方法用于确定样品是否来源于真正的受试者或呈递攻击工具(PAI)。在这种情况下,大多数作品都致力于将PAD作为两类分类问题来解决,其中包括在真实和PA样本上训练模型。尽管报告了良好的检测率,但这些方法仍然面临从未知材料中检测PAI的困难。为了解决这个问题,我们提出了一种新的PAD技术的基础上的自动编码器(AE)只训练真正的样本(即一类),这是在短波红外域捕获。在包括45种不同PAI种类的19,711个真实PA图像和4,339个PA图像的数据库上的实验评估中,实现了2.00%的检测等出错率(D-EER)。此外,我们最好的AE模型进行比较,进一步一类分类器(支持向量机,高斯混合模型)。结果表明,AE模型的有效性,因为它显着优于以前提出的方法。

英文摘要:

In recent years, the popularity of fingerprint-based biometric authentication systems significantly increased. However, together with many advantages, biometric systems are still vulnerable to presentation attacks (PAs). In particular, this applies for unsupervised applications, where new attacks unknown to the system operator may occur. Therefore, presentation attack detection (PAD) methods are used to determine whether samples stem from a bona fide subject or from a presentation attack instrument (PAI). In this context, most works are dedicated to solve PAD as a two-class classification problem, which includes training a model on both bona fide and PA samples. In spite of the good detection rates reported, these methods still face difficulties detecting PAIs from unknown materials. To address this issue, we propose a new PAD technique based on autoencoders (AEs) trained only on bona fide samples (i.e. one-class), which are captured in the short wave infrared domain. On the experimental evaluation over a database of 19,711 bona fide and 4,339 PA images including 45 different PAI species, a detection equal error rate (D-EER) of 2.00% was achieved. Additionally, our best performing AE model is compared to further one-class classifiers (support vector machine, Gaussian mixture model). The results show the effectiveness of the AE model as it significantly outperforms the previously proposed methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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