@inproceedings{ICPR-v3-2006-WangWKH,
	author        = "Ya-Dong Wang and Jian-Kang Wu and Ashraf A. Kassim and Weimin Huang",
	booktitle     = "{Proceedings of the 18th International Conference on Pattern Recognition, Volume 3}",
	doi           = "10.1109/ICPR.2006.1131",
	isbn          = "0-7695-2521-0",
	pages         = "1127--1130",
	publisher     = "{IEEE Computer Society}",
	title         = "{Tracking a Variable Number of Human Groups in Video Using Probability Hypothesis Density}",
	year          = 2006,
}