@inproceedings{ICPR-v3-2006-KongGT,
	author        = "Dan Kong and Douglas Gray and Hai Tao",
	booktitle     = "{Proceedings of the 18th International Conference on Pattern Recognition, Volume 3}",
	doi           = "10.1109/ICPR.2006.197",
	isbn          = "0-7695-2521-0",
	pages         = "1187--1190",
	publisher     = "{IEEE Computer Society}",
	title         = "{A Viewpoint Invariant Approach for Crowd Counting}",
	year          = 2006,
}