关键字：车牌识别；图像预处理；倾斜校正；OpenCV；模式识别；
Design OfAdvanced License Plate Recognition Algorithm
YUYue, YU Hong-Tao,GU Mei-Xia
(Key Laboratory of Photo electronic Imaging Technology and System of theMinistry of Education of China, School of Optics and Electronics,Beijing Institute of Technology, Beijing 100081,China)
Abstract：License plate recognition system has been widely usedas intelligent traffic system (ITS) the indispensable important constituent part.The license plate recognition algorithm is mature but there are still many places needs to be improved.Based on the principle of license plate recognition, this paperputs forward some new algorithm in the license plate image preprocessing and pattern recognition, includingthe tilt correction processing.Not only reduce the license plate image quality requirements, improve the recognition accuracy, but also improve the recognition accuracy. On the basis of improved algorithm, this paper, by using OpenCV and MFC to complete the algorithm, and using this software to process a series of license plate images has made great identification results.
Key words：License plate recognition;Image preprocessing; Tilt correction; OpenCV; Pattern recognition;