| 基于图像的铁路货车车号定位与识别 |
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| 引用本文： | 杨菊花,;陈光武,;包成启. 基于图像的铁路货车车号定位与识别[J]. 兰州交通大学学报, 2014, 0(4): 21-25 |
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| 作者姓名： | 杨菊花, 陈光武, 包成启 |
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| 作者单位： | [1]兰州交通大学 交通运输学院,甘肃兰州730070; [2]兰州交通大学 光电技术与智能控制教育部重点实验室,甘肃兰州730070 |
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| 基金项目： | 甘肃省青年基金（1208RJYA060）;兰州市科技计划项目（2013-4-62） |
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| 摘 要： | 针对铁路货车车号特征,提出一种基于图像处理的车号定位与识别方法.该方法首先对车号区域图像进行预处理并粗定位出车号区域,然后采用改进的Soble算子边缘检测技术与投影法和铁路货车车号先验知识相结合对车号区域进行精确定位,最后通过对字符进行分割和归一化处理,在粗网格特征提取字符特征的基础上采用模板匹配法快速实现了车号识别.实验结果表明,该方法对铁路货车各种车型车号区域定位和识别具有较高的准确率.
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| 关 键 词： | 图像处理 Soble算子 车号定位 模板匹配 车号识别 |
Location and Identification of Train Number Based on Image Processing |
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| Affiliation: | YANG Ju-hua, CHEN Guang-wu, BAO Cheng-qi (1. School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou 730070, China;2. Key Laboratory of Opto-eleetronie Technology and Intelligent Control of Ministry of Edueation, Lanzhou Jiaotong University, Lanzhou 730070 ,China) |
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| Abstract: | Aiming at the features of freight wagon,a new method,which is based on image process-ing,is proposed to locate and identify train number.Firstly,the number region is pretreated in or-der to roughly locate the region.Then three are combined to locate the region accurately which are the edge detection technique with modified Soble operator,proj ection method and prior knowledge of railway train number.Finally,through character division and normalization procession,tem-plate matching method is used to recognize the number and type of the freight wagon as fast as possible,which is based on character feature extraction on coarse mesh.The experimental results show that the new method performs well in accurately locating and identifying the train number. |
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| Keywords: | image processing Soble operator number location template matching number rec-ognition |
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