@article{anisotropicdiffusionbasedkernelmatrix,
  title = {Anisotropic Diffusion-based Kernel Matrix Model for Face Liveness Detection},
  author = {Changyong Yu and Yunde Jia},
  year = {2017},
  eprint = {1707.02692},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1707.02692v1},
}