@INPROCEEDINGS{BrostowCipollaCVPR2006,
  AUTHOR       = {Gabriel J. Brostow and Roberto Cipolla},
  TITLE        = {Unsupervised Bayesian Detection of Independent Motion in Crowds},
  BOOKTITLE    = {IEEE Computer Vision and Pattern Recognition},
  PAGES	       = {I: 594-601},
  YEAR         = {2006},
}