@inproceedings{ICPR-v4-2006-YuanYT,
	author        = "Tianqiang Yuan and Shuicheng Yan and Xiaoou Tang",
	booktitle     = "{Proceedings of the 18th International Conference on Pattern Recognition, Volume 4}",
	doi           = "10.1109/ICPR.2006.930",
	isbn          = "0-7695-2521-0",
	pages         = "65--68",
	publisher     = "{IEEE Computer Society}",
	title         = "{Perspective Symmetry Invariant and Its Applications}",
	year          = 2006,
}