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| 一种改进的车牌区域定位算法 | |
| 引用本文： | 黄文杰,王海涛,姬建岗.一种改进的车牌区域定位算法[J].交通与计算机,2007,25(3):114-117. |
| 作者姓名： | 黄文杰 王海涛 姬建岗 |
| 作者单位： | 1. 淮阴工学院,淮安,223001 2. 南京航空航天大学,南京,210016 3. 西安公路研究所,西安,710061 |
| 摘 要： | 在分析基于灰度图像的车牌区域搜索思路的基础上,提出了一套改进的车牌区域定位算法.在图像预处理过程中,根据高速公路收费站点光照条件不断变化的特点,采用一阶差分算法并结合累积像素点确定二值化阈值的方法,完成图像边缘轮廓的提取工作.实践表明,改进的车牌区域定位算法的定位准确率为98.3%. |
| 关 键 词： | 图像预处理 一阶差分 边缘检测 车牌定位 改进 车牌 区域 定位算法 Vehicle License Plate Region Locating 定位准确率 实践 工作 提取 边缘轮廓 方法 二值化阈值 像素点 结合 差分算法 变化 光照条件 收费站点 |
| 修稿时间： | 2007-04-22 |
An Improved Algorithm of Locating Region of Vehicle License Plate |
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| HUANG Wenjie,WANG Haitao,JI Jiangang.An Improved Algorithm of Locating Region of Vehicle License Plate[J].Computer and Communications,2007,25(3):114-117. | |
| Authors: | HUANG Wenjie WANG Haitao JI Jiangang |
| Abstract: | On the basis of analyzing the thought of searching the region of VLP based on gray image, a set of algorithms were put forward. At the meantime, during the procedure of pre-processing, according to the character that the illumination conditions on the scene of the expressway toll collection frequently change a lot, the algorithm of first difference combining the method of fixing the threshold of binarization via accumulating the points was used to complete the job of extracting the outline of the image. The practice shows that the location accuracy of the improved algorithm is 98.3%. |
| Keywords: | image preprocessing first difference edge detection license plate location |
| 本文献已被 维普 万方数据 等数据库收录！ | |