@article{aunifiedtensorbasedactiveappearanceface,
  title = {A Unified Tensor-based Active Appearance Face Model},
  author = {Zhen-Hua Feng and Josef Kittler and William Christmas and Xiao-Jun Wu},
  year = {2016},
  eprint = {1612.09548},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1612.09548v2},
}