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Research of license plate recognition and location based on SUSAN corner detection

Huan-hai Yang

Recognition technology of license plates is one of the important research subject in the field of intelligent traffic. It relates to computer vision, digital imaging processing and pattern recognition and has extensive real application background. Based on license plate location method of SUSAN corner detection, the paper proposes a location method of license plates aiming at The method firstly uses mathematical morphology for initial location on license plate area. Then, the method uses SUSAN corner detection method to detect the corner of candidate regions. Lastly, the method uses the achieved angular point figure for accurate location by using clustering method. The experiment proves that when the angle of inclination of license plates is great and even is vertical, the method not only has ideal segmentation effect, but also has rapid segmentation speed, which helps realtime location of license plates