@article{improvingfaceantispoofingby3dvirtual,
  title = {Improving Face Anti-Spoofing by 3D Virtual Synthesis},
  author = {Jianzhu Guo and Xiangyu Zhu and Jinchuan Xiao and Zhen Lei and Genxun Wan and Stan Z. Li},
  year = {2019},
  eprint = {1901.00488},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1901.00488v3},
}