An Effective Method of Locating License Plate in Complex Scenes

摘要：

License plate recognition system(LPRS) is one of the most important parts of the intelligent transportation system(ITS),and the license plate location is the most important step of the LPRS,it derectly affects the performance of the character segmentation and recognition afterward.In this paper,an effective algorithm of lisence plate location is proposed.In this method,Firstly we obtain high frequency coefficient through 1-D discrete wavelet transform. Then we process the image with median filtering, binarization and morphology operation.Finally,we label and record the connected regions. Then we can locate the candidate license plates according to the region information. Experiment proved that our method performs well in the long range and complex scenes,and performs well on located speed and robustness.

关键词： LPRS license plate location 1-D discrete wavelet transform median filtering binarization morphology operation region-labeling

作者: Jianing Ling Mei Xie

作者单位: School of Electronic Engineering University of Electronic Science and Technology of China Chengdu, China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer and Automation Engineering(ICCAE 2011)(2011年第三届IEEE计算机与自动化工程国际会议)

会议地点: 重庆

会议语种:英文

页码: 566-569

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）