计算机工程与应用Issue(8)：169-173,5.DOI:10.3778/j.issn.1002-8331.1205-0134
基于双边缘检测的车牌识别算法
License plate recognition based on double-edge detection
摘要
Abstract
With the development of intelligent transportation, license plate recognition system has become an important part of it. License plate recognition can be divided into three procedures, including license plate location, character segmentation and character recognition. In order to achieve accurate license plate recognition, a novel approach is proposed in this paper. During the task of locating license plate, the double-edge detection method is adopted for positioning the license plate. And the combina-tion of finding connected domains and traditional segmentation of projection is applied for character segmentation. Regarding character recognition, three kinds of classifiers are utilized for improving classification accuracy and the strategy of reclassifica-tion of confusing characters is employed, which can shorten the training time and get higher accuracy. Experimental results dem-onstrate that proposed approach is able to achieve high recognition rate with reasonable computational complexity.关键词
车牌定位/边缘检测/字符分割/连通域/垂直投影/字符识别/支持向量机(SVM)Key words
license plate location/edge detection/character segmentation/connected domains/vertical projection/character rec-ognition/Support Vector Machine(SVM)分类
信息技术与安全科学引用本文复制引用
王磊,王瀚漓,何良华..基于双边缘检测的车牌识别算法[J].计算机工程与应用,2013,(8):169-173,5.基金项目
上海市科技创新行动计划重大专项(No.10DJ1400300) （No.10DJ1400300）
上海市启明星计划(No.10QA1407100) （No.10QA1407100）
