Domain-generalizable Face Anti-Spoofing with Patch-based Multi-tasking and Artifact Pattern Conversion

• URL: http://arxiv.org/abs/2604.09018v1
• Date: Fri, 10 Apr 2026 06:28:32 GMT
• Title: Domain-generalizable Face Anti-Spoofing with Patch-based Multi-tasking and Artifact Pattern Conversion
• Abstract summary: Face Anti-Spoofing (FAS) algorithms are designed to secure face recognition systems against spoofing.<n>They struggle with limited dataset diversity, impairing their ability to handle unseen visual domains and spoofing methods.<n>We introduce the Pattern Conversion Generative Adversarial Network (PCGAN) to enhance domain generalization in FAS.
• Score: 23.570754645724133
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Face Anti-Spoofing (FAS) algorithms, designed to secure face recognition systems against spoofing, struggle with limited dataset diversity, impairing their ability to handle unseen visual domains and spoofing methods. We introduce the Pattern Conversion Generative Adversarial Network (PCGAN) to enhance domain generalization in FAS. PCGAN effectively disentangles latent vectors for spoof artifacts and facial features, allowing to generate images with diverse artifacts. We further incorporate patch-based and multi-task learning to tackle partial attacks and overfitting issues to facial features. Our extensive experiments validate PCGAN's effectiveness in domain generalization and detecting partial attacks, giving a substantial improvement in facial recognition security.

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