Anti-Spoofing and Mask-Supported Face Authentication Using mmWave Without On-Site Registration

This research presents mmFace, a face authentication system that uses millimeter wave radar (mmWave, radio signals that can penetrate materials and detect fine details) instead of cameras to verify a person's identity while resisting spoofing attacks (fake faces or replayed recordings). The system works even when users wear masks because mmWave signals can pass through them, and it uses techniques like liveness detection (checking that a face is real and alive) and amplitude modulation-based methods to prevent attackers from fooling it with fake faces or recorded videos.