本文介绍了基于2022年国际生物识别技术联合会议（IJCB 2022）举行的基于隐私感知合成训练数据（SYN-MAD）的面部变形攻击检测的摘要。该竞赛吸引了来自学术界和行业的12个参与团队，并在11个不同的国家 /地区举行。最后，参与团队提交了七个有效的意见书，并由组织者进行评估。竞争是为了介绍和吸引解决方案的解决方案，这些解决方案涉及检测面部变形攻击的同时，同时出于道德和法律原因保护人们的隐私。为了确保这一点，培训数据仅限于组织者提供的合成数据。提交的解决方案提出了创新，导致在许多实验环境中表现优于所考虑的基线。评估基准现在可在以下网址获得：https：//github.com/marcohuber/syn-mad-2022。
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变形面的图像对面对识别的安全系统构成了严重威胁，因为它们可用于非法验证具有单个变形图像的多人身份。现代检测算法学会使用真实个体的真实图像来识别这种变形攻击。这种方法提出了各种隐私问题，并限制了公开培训数据的数量。在本文中，我们探讨了仅在不存在的人及其各自的形态上接受训练的检测算法的功效。为此，对两种专用算法进行了合成数据的训练，然后在三个现实世界数据集上进行了评估，即：FRLL-MORPHS，FERET-MORPHS和FRGC-MORPHS。我们的结果表明，合成的面部图像可以成功用于检测算法的训练过程，并将其概括为现实世界情景。
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Synthetic data generation has recently gained widespread attention as a more reliable alternative to traditional data anonymization. The involved methods are originally developed for image synthesis. Hence, their application to the typically tabular and relational datasets from healthcare, finance and other industries is non-trivial. While substantial research has been devoted to the generation of realistic tabular datasets, the study of synthetic relational databases is still in its infancy. In this paper, we combine the variational autoencoder framework with graph neural networks to generate realistic synthetic relational databases. We then apply the obtained method to two publicly available databases in computational experiments. The results indicate that real databases' structures are accurately preserved in the resulting synthetic datasets, even for large datasets with advanced data types.
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