Face anti-spoofing (FAS) plays a vital role in securing face recognition systems from presentation attacks. Existing multi-modal FAS methods rely on stacked vanilla convolutions, which is weak in describing detailed intrinsic information from modalities and easily being ineffective when the domain shifts (e.g., cross attack and cross ethnicity). In this paper, we extend the central difference convolutional networks (CDCN)  to a multimodal version, intending to capture intrinsic spoofing patterns among three modalities (RGB, depth and infrared). Meanwhile, we also give an elaborate study about singlemodal based CDCN. Our approach won the first place in “Track Multi-Modal” as well as the second place in “Track Single-Modal (RGB)” of ChaLearn Face Antispoofing Attack Detection Challenge@CVPR2020 . Our final submission obtains 1.02±0.59% and 4.84±1.79% ACER in “Track Multi-Modal” and “Track Single-Modal (RGB)”, respectively. The codes are available at https://github.com/ZitongYu/CDCN.
Yu Zitong, Qin Yunxiao, Li Xiaobai, Wang Zezheng, Zhao Chenxu, Lei Zhen, Zhao Guoying
A4 Article in conference proceedings
Place of publication:
2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)
Z. Yu et al., “Multi-Modal Face Anti-Spoofing Based on Central Difference Networks,” 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), Seattle, WA, USA, 2020, pp. 2766-2774, doi: 10.1109/CVPRW50498.2020.00333
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