@inproceedings{ICPR-2010-ZiaeefardE,
	author        = "Maryam Ziaeefard and Hossein Ebrahimnezhad",
	booktitle     = "{Proceedings of the 20th International Conference on Pattern Recognition}",
	doi           = "10.1109/ICPR.2010.906",
	isbn          = "978-0-7695-4109-9",
	pages         = "3720--3723",
	publisher     = "{IEEE Computer Society}",
	title         = "{Hierarchical Human Action Recognition by Normalized-Polar Histogram}",
	year          = 2010,
}