投影和模板匹配相结合分割车牌字符  

Unite projection and template match to segment license plate characters

作　　者：邓红耀[1] 管庶安[2] 宋秀丽[3] 

机构地区：[1]新疆大学艺术设计学院,新疆乌鲁木齐830000 [2]武汉工业学院计算机与信息工程系,湖北武汉430032 [3]重庆邮电大学计算机学院,重庆400065

出　　处：《计算机工程与设计》2008年第6期1568-1570,共3页Computer Engineering and Design

基　　金：湖北省自然科学基金项目(2004ABA033);湖北省教育厅重大基金项目(2002D01001)

摘　　要：提出了一种解决断裂、粘连、污损和部分遮挡车牌字符的分割算法。结合字符牌照的特征,对校正后的车牌图像进行投影,处理断裂和粘连的字符,实现字符初次分割。在初次分割的基础上,设计匹配模板对初次分割下来的车牌图像进行模板匹配,寻求误差最小的模板对字符重新分割。实验结果表明,该方法自适应性强,有很强的鲁棒性,可以获得最优的分割效果。A method to segment the cracked,adhesive,dirtied and partial covered characters of license plate is presented.License plate image that is rectified is projected.The cracked and adhesive characters are processed.Characters＇ segmentation is firstly completed.Then the processed characters＇ image is matched according to the template designed.The characters are segmented once more by the little error＇s template.Tests show that the method has a wide adaptability and robustness.It could get the optimization matching location to segment the characters.

关 键 词：污损字符 遮挡车牌 投影分割 模板匹配 字符分割 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]