Searching Central Difference Convolutional Networks for Face Anti-Spoofing
Searching Central Difference Convolutional Networks for Face Anti-Spoofing
Face anti-spoofing (FAS) plays a vital role in face recognition systems. Most state-of-the-art FAS methods 1) rely on stacked convolutions and expert-designed network, which is weak in describing detailed fine-grained information and easily being ineffective when the environment varies (e.g., different illumination), and 2) prefer to use long sequence as …