@inproceedings{ICPR-2012-MengQYMCM,
	author        = "Lingxun Meng and Laiyun Qing and Peng Yang and Jun Miao and Xilin Chen and Dimitris N. Metaxas",
	booktitle     = "{Proceedings of the 21st International Conference on Pattern Recognition}",
	isbn          = "978-1-4673-2216-4",
	pages         = "609--612",
	publisher     = "{IEEE Computer Society}",
	title         = "{Activity recognition based on semantic spatial relation}",
	year          = 2012,
}