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arXiv 1907.04048cs.CV
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基于特征的多通道自编码器领域自适应人脸抗欺骗

Domain Adaptation in Multi-Channel Autoencoder based Features for Robust Face Anti-Spoofing

Idiap Research Institute(Idiap 研究所)

Olegs Nikisins, Anjith George, Sebastien Marcel

摘要:

虽然人脸识别系统的性能在过去十年中有了显着提高,但它们被证明非常容易受到演示攻击(欺骗)。人脸呈现攻击检测(PAD)领域的大部分研究都集中在提高单个数据库中系统的性能上。人脸PAD数据集通常使用RGB相机捕获,并且具有非常有限的真实样本和呈现攻击工具。在这些数据上训练人脸PAD系统会导致性能低下,即使在闭集场景中也是如此,特别是当涉及复杂的攻击时。我们探索了两条路径来提高人脸PAD系统对具有挑战性的攻击的性能。首先,通过使用多通道(RGB,深度和NIR)数据,这些数据在许多大规模生产设备中仍然可以轻松访问。其次,我们提出了一种新的基于自动编码器+MLP的人脸PAD算法。此外,代替收集更多数据用于训练所提出的深度架构,提出了领域自适应技术,将面部外观的知识从RGB转移到多通道域。我们还证明,学习单个面部区域的特征比从整个面部学习的特征更具鉴别力。建议的系统进行了测试,最近公开的多通道PAD数据库与各种各样的演示攻击。

英文摘要:

While the performance of face recognition systems has improved significantly in the last decade, they are proved to be highly vulnerable to presentation attacks (spoofing). Most of the research in the field of face presentation attack detection (PAD), was focused on boosting the performance of the systems within a single database. Face PAD datasets are usually captured with RGB cameras, and have very limited number of both bona-fide samples and presentation attack instruments. Training face PAD systems on such data leads to poor performance, even in the closed-set scenario, especially when sophisticated attacks are involved. We explore two paths to boost the performance of the face PAD system against challenging attacks. First, by using multi-channel (RGB, Depth and NIR) data, which is still easily accessible in a number of mass production devices. Second, we develop a novel Autoencoders + MLP based face PAD algorithm. Moreover, instead of collecting more data for training of the proposed deep architecture, the domain adaptation technique is proposed, transferring the knowledge of facial appearance from RGB to multi-channel domain. We also demonstrate, that learning the features of individual facial regions, is more discriminative than the features learned from an entire face. The proposed system is tested on a very recent publicly available multi-channel PAD database with a wide variety of presentation attacks.

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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