Damer, Naser ; Spiller, Noémie ; Fang, Meiling ; Boutros, Fadi ; Kirchbuchner, Florian ; Kuijper, Arjan (2021)
PW-MAD: Pixel-Wise Supervision for Generalized Face Morphing Attack Detection.
16th International Symposium on Visual Computing. virtual Conference (04.-06.10.2021)
doi: 10.1007/978-3-030-90439-5_23
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Kurzbeschreibung (Abstract)

A face morphing attack image can be verified to multiple identities, making this attack a major vulnerability to processes based on identity verification, such as border checks. Various methods have been proposed to detect face morphing attacks, however, with low generalizability to unexpected post-morphing processes. A major post-morphing process is the print and scan operation performed in many countries when issuing a passport or identity document. In this work, we address this generalization problem by adapting a pixel-wise supervision approach where we train a network to classify each pixel of the image into an attack or not, rather than only having one label for the whole image. Our pixel-wise morphing attack detection (PW-MAD) solution proved to perform more accurately than a set of established baselines. More importantly, PW-MAD shows high generalizability in comparison to related works, when evaluated on unknown re-digitized attacks. Additionally to our PW-MAD approach, we create a new face morphing attack dataset with digital and re-digitized samples, namely the LMA-DRD dataset that is publicly available for research purposes upon request.

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