@inproceedings{DRR-2009-IwamuraNHKUO,
	author        = "Masakazu Iwamura and Ryo Niwa and Akira Horimatsu and Koichi Kise and Seiichi Uchida and Shinichiro Omachi",
	booktitle     = "{Proceedings of the 16th Conference on Document Recognition and Retrieval}",
	doi           = "10.1117/12.806122",
	isbn          = "978-0-8194-7497-1",
	pages         = "1--10",
	publisher     = "{SPIE}",
	series        = "{SPIE Proceedings}",
	title         = "{Layout-free dewarping of planar document images}",
	volume        = 7247,
	year          = 2009,
}