Multimodal Proxy-Free Face Anti-Spoofing Exploiting Local Patch Features

Face anti-spoofing (FAS) is vital to ensure the security of the face recognition systems, for which the essential task is to capture the unique spoof face features. Most of the existing methods extract spoof features from the whole faces, overlooking clues in local face patches. Meanwhile, researchers usually use intermediate parameters as a proxy in face classification, but this requires the desi…