The Research And Achievement Of Vehicle Plate Recognition Technology Applied Mathematics

ITS (intelligent transportation systems) is progressing rapidly in recent years in China. At the same time, as the information collection method for ITS, the vehicle plate recognition technology has also developed very fast. Based on the detail analysis for the typical vehicle plate recognition systems(VPRS), the peculiar VPRS presented suitable used in China, concerning the charactristics of Chinese vehicle plate. The technology of vehicle plate recognition has won the Second Prize of Science and Technology Advancement of the Ministry of Public Security of P.R. China. The research presented here for VPRS is characteristic of the four creation points showing bellow: First, the problems which are of troubles really in the traditional image treatment technology have been successful solved in use of wavelet analysis. Second, the Acquring Image Adaptive Control System(AIACS) has been presented creatively to be adaptive in all weather conditions. Third, the vehicle plate recognition technology has been used to measure the vehicle speed, both of them are achieved at same time. This technology is at the leading position. Last, several creative arithmetic for plate location, plate segment and character recognition have proposed.