@article{twodecadesoflocalbinarypatternsasurvey,
  title = {Two decades of local binary patterns: A survey},
  author = {Matti Pietikäinen and Guoying Zhao},
  year = {2016},
  eprint = {1612.06795},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1612.06795v2},
}