A car license plate reader (CLPR) using fuzzy inference and neural network algorithm has been developed in Industrial Technology Research Institute (ITRI) and installed in highway toll stations to identify stolen cars. It takes an average of 0.7 seconds to recognize a car license plate by using a PC with 80486-50 CPU. The recognition rate of the system is about 97%. The techniques of CLPR include vehicle sensing, image grab control, optic pre- processing, lighting, and optic character recognition (OCR). The CLPR can be used in vehicle flow statistics, the checking of stolen vehicles, automatic charging systems in parking lots or garage management, and so on.
PC-based car license plate reader
Machine Vision Applications, Architectures, and Systems Integration ; 1992 ; Boston,MA,United States
Proc. SPIE ; 1823
1992-11-01
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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