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24 July 2001 Compact hybrid optoelectrical license plate recognition system
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Abstract
License plate automatic recognition is an important section of traffic management. In this paper, the procedure of license plate recognition is analyzed. A novel compact hybrid opto- electrical correlator and the optimum design of spatial matched filter (MSFs) are illustrated in details. The compact correlator, combining parallelism of optics and flexibility of electronics, plays a promising part in the field of image recognition. The optimal binary phase-only MSFs, based on Synthetic Discriminate Function (SDF), by means of NN Clipping and Monte Carlo learning algorithm, can greatly improve the accuracy of image recognition. The result is presented finally.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hong Hui, Hong Zhou, and LeYu Wang "Compact hybrid optoelectrical license plate recognition system", Proc. SPIE 4335, Advanced Nondestructive Evaluation for Structural and Biological Health Monitoring, (24 July 2001); https://doi.org/10.1117/12.434199
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