@inproceedings{ICPR-2012-LiuL,
	author        = "Hong Liu and Jiang Li",
	booktitle     = "{Proceedings of the 21st International Conference on Pattern Recognition}",
	isbn          = "978-1-4673-2216-4",
	pages         = "3716--3720",
	publisher     = "{IEEE Computer Society}",
	title         = "{Unsupervised multi-target trajectory detection, learning and analysis in complicated environments}",
	year          = 2012,
}