Look Locally Infer Globally: A Generalizable Face Anti-Spoofing Approach

• URL: http://arxiv.org/abs/2006.02834v3
• Date: Mon, 15 Jun 2020 19:04:10 GMT
• Title: Look Locally Infer Globally: A Generalizable Face Anti-Spoofing Approach
• Authors: Debayan Deb, Anil K. Jain
• Abstract summary: State-of-the-art spoof detection methods tend to overfit to the spoof types seen during training and fail to generalize to unknown spoof types. We propose Self-Supervised Regional Fully Convolutional Network (SSR-FCN) that is trained to learn local discriminative cues from a face image in a self-supervised manner.
• Score: 53.86588268914105
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: State-of-the-art spoof detection methods tend to overfit to the spoof types seen during training and fail to generalize to unknown spoof types. Given that face anti-spoofing is inherently a local task, we propose a face anti-spoofing framework, namely Self-Supervised Regional Fully Convolutional Network (SSR-FCN), that is trained to learn local discriminative cues from a face image in a self-supervised manner. The proposed framework improves generalizability while maintaining the computational efficiency of holistic face anti-spoofing approaches (< 4 ms on a Nvidia GTX 1080Ti GPU). The proposed method is interpretable since it localizes which parts of the face are labeled as spoofs. Experimental results show that SSR-FCN can achieve TDR = 65% @ 2.0% FDR when evaluated on a dataset comprising of 13 different spoof types under unknown attacks while achieving competitive performances under standard benchmark datasets (Oulu-NPU, CASIA-MFSD, and Replay-Attack).

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