@inproceedings{huang2015facial,
  title={Facial micro-expression recognition using spatiotemporal local binary pattern with integral projection},
  author={Huang, Xiaohua and Wang, Su-Jing and Zhao, Guoying and Piteikainen, Matti},
  booktitle={Proceedings of the IEEE international conference on computer vision workshops},
  pages={1--9},
  year={2015}
}