摘要
提出了基于数学形态学和纹理特征的快速定位车牌的方法.该方法包含4个步骤:预处理,利用Sobel算子进行垂直边缘检测,通过形态学操作得到连通域,利用车牌的纹理特征和字符特征最终定位车牌.使用该方法对1 144幅图片进行实测,1 102幅图片定位成功,正确识别率为96.3%,处理时间为160～200ms.
Based on mathematical morphology and texture features, a practical and fast method for vehicle license plate reeognition was presented. The method consisted of four steps： preprocessing, vertical edge detection using Sobel operator, morphological operation for obtaining connected components and plate recognition using texture features. In the experiment, 1 102 among 1 144 images were successfully located, corresponding to a recognition rate of 96.3%. The recognition time for one plate was 0. 16--0.20 ms.
出处
《物理实验》
2012年第6期13-16,共4页
Physics Experimentation
关键词
SOBEL算子
数学形态学
结构元素
连通域
纹理特征
Sobel operator
mathematical morphology
structural element
connected region
texture {eature
