4Kurosawa Kenji,Kuroki Kenro,Saitoh Naoki.Study on recognition of degraded characters on license plate[J].Proceedings of SPIE-The International Society for Optical Engineering,1999(3576):247-252.
5Wen C Y,Yu C C.A 3D transformation to improve the legibility of license plate numbers[J].Journal of Forensic Sciences,2002,47(3):578-585.
6Nomura S,Yamanaka K,Katai O,et al.A novel adaptive morphological approach for degraded character image segmentation[J].Pattern Recognition,2005,38(11):1961-1975.
7Shigueo Nomura,Keiji Yamanaka,Osamu Kataia,et al.Anovel adaptive morphological approach for degraded character image segmentation[J].Pattern Recognition,2005(38):1961-1975.
8Comelli P, Ferragina P. Optical Recognition of Motor Vehicle License Plates[J].IEEE Transaction on Vehicle Technology, 1993,11 (44):790
9Tanabe K, Marubayashi E. PC-Based Car License Plate Reading[J].SPIE, 1994,2182:220-230
