@CONFERENCE{Li.anomaly.2014,
  author = {Wei-Xin LI and Vijay Mahadevan and Nuno Vasconcelos},
  title = {Anomaly Detection and Localization in Crowded Scenes},
  journal = {IEEE Transactions on Pattern Analysis and Machine Intelligence},
  volume = {36},
  number = {1},
  pages={18-32},
  year = {2014}
}