@article{zhou2012face,
  title={Face image feature extraction method based on sparse tensor},
  author={Zhou, Chun-Guang and Sun, Ming-Fang and Wang, Su-Jing and Chen, Qian and Liu, Xiao-Hua and Liu, Yu-Hao},
  journal={Journal of Jilin University(Engineering and Technology Edition)},
  volume={42},
  number={6},
  pages={1521--1526},
  year={2012},
  publisher={Jilin University}
}