Title :
Vehicle license-plate recognition by image analysis
Author :
Miyamoto, Kazumasa ; Nagano, Kazuo ; Tamagawa, Mitsuaki ; Fujita, Ichiro ; Yamamoto, Masayuki
Author_Institution :
Mitsubishi Heavy Ind. Ltd., Kobe, Japan
fDate :
28 Oct-1 Nov 1991
Abstract :
Automatic/unmanned control has been envisaged for entry/exit gates at tollways in Japan. It has been determined that the best way to classify the various vehicles at the toll gates is to read the classification number on the upper side of the license plates. An advanced system using image analysis has been developed, which is applicable to actual facilities on a commercial basis. It is already being run in good condition at as many as 50 entry toll gates. A remarkably high accuracy of recognition rates of more than 99% has been achieved
Keywords :
computerised pattern recognition; computerised picture processing; road traffic; road vehicles; traffic computer control; Japan; automatic/unmanned control; classification number; computerised pattern recognition; computerised picture processing; entry/exit gates; image analysis; tollways; vehicle license plate recognition; Application software; Automatic control; Cameras; Hardware; Image analysis; Image processing; Image recognition; Length measurement; Licenses; Vehicles;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.239253
