@inproceedings{ICPR-1996-HataOKN,
	author        = "Koichi Hata and Jun Ohya and Fumio Kishino and Ryohei Nakatsu",
	booktitle     = "{Proceedings of the 13th International Conference on Pattern Recognition}",
	doi           = "10.1109/ICPR.1996.546065",
	isbn          = "0-8186-7282-X",
	pages         = "441--445",
	publisher     = "{IEEE Computer Society}",
	title         = "{Automatic extraction and tracking of contours}",
	year          = 1996,
}