Study of License Plate Recognition Technology

Abstract:

License plate recognition technology has been widely used with the development of intelligent traffic system, which studies vehicle identification based on digital image processing technology. This paper presents system design and realization of recognition system for license plate. License plate image is preprocessed by gradation and binaryzation at first, then the image noise caused by dirt is filtered by a mean value method. We adopt horizontal and vertical projection method to locate license plate. Character segmentation and recognition are carried out at last. Test result shows that the method presented has good accuracy, quick speed and strong robustness for realtime application.

• Periodical: Advanced Materials Research (Volumes 834-836)
• Pages: 1035-1038
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.834-836.1035
• Online since: October 2013
• Authors: Shuai Yuan, Guo Yun Zhang, Jian Hui Wu, Long Yuan Guo
• Keywords: Binaryzation, Character Segmentation, Digital Image Processing, Gradation, License Plate, Mean Value Method, Recognition

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