@inproceedings{ICPR-v1-2006-AndradeBF06a,
	author        = "Ernesto L. Andrade and Scott Blunsden and Robert B. Fisher",
	booktitle     = "{Proceedings of the 18th International Conference on Pattern Recognition, Volume 1}",
	doi           = "10.1109/ICPR.2006.621",
	isbn          = "0-7695-2521-0",
	pages         = "460--463",
	publisher     = "{IEEE Computer Society}",
	title         = "{Hidden Markov Models for Optical Flow Analysis in Crowds}",
	year          = 2006,
}