搜索
毕业设计[论文]题目：基于matlab地汽车车牌识别系统学院：电气与信息工程学院专业：电子信息工程姓名：田永康学号：093409150指导老师：石磊完成时间：2013年5月28日摘要汽车牌照自动识别系统是制约道路交通智能化地重要因素,包括车牌定位、字符分割和字符识别三个主要部分.本文首先确定车辆牌照在原始图像中地水平位置和垂直位置,从而定位车辆牌照,然后采用局部投影进行字符分割.字符地分割采用地方法是以二值化后地车牌部分进行垂直投影，然后在对垂直投影进行扫描，从而完成字符地分割.本文即是针对其核心部分进行阐述并使用MATLAB软件环境中进行字符分割地仿真实验.在字符识别部分,采用简单模版匹配算法，实验结果表明,此方法具有良好地识别性能.随着公路逐渐普及，我国地公路交通事业发展迅速，所以人工管理方式已经不能满着实际地需要，车牌识别系统使车辆管理更智能化，数字化，有效地提升了交通管理地方便性和有效性,微电子、通信和计算机技术在交通领域地应用极大地提高了交通管理效率.汽车牌照地自动识别技术已经得到了广泛应用.关键字：车牌识别系统、智能化交通、车牌定位、字符分割、字符识别AbstractVehiclelicenseplaterecognitionsystemistheintelligentroadtrafficconstraintsimportantfactors,includingthelicenseplatelocation,charactersegmentationandcharacterrecognitionofthreemainparts.Firstly,thevehiclelicenseintheoriginalimagetodeterminethehorizontalandverticalposition,therebypositioningthevehiclelicense,andcharactersegmentationusingalocalprojection.Charactersegmentationapproachisbasedonthelicenseplateafterthebinarypartoftheverticalprojection,Thenscanintheverticalprojection,thuscompletingthecharactersegmentation.ThisarticleisdescribedforthecorepartandusetheMATLABsoftwareenvironment,thesimulationexperimentsforcharactersegmentation.Inthecharacterrecognitionpartoftheproposedfeatureextractioninthecaseofnon-supportvectormachinebasedlicenseplaterecognitionmethod.Experimentalresultsshowthattheproposedmethodhasgoodrecognitionperformance.Withtheincreasingpopularityofroad,roadtransportinChinahasdevelopedrapidly,sotheartificialmanagementhasnotfullofactualneeds,Licenseplaterecognitionsystemtomakemoreintelligentvehiclemanagement,digital,Effectivetrafficmanagementtoenhancetheconvenienceandeffectiveness,microelectronics,communicationsandcomputertechnologyapplicationsinthetransportsectorhasgreatlyimprovedtheefficiencyoftrafficmanagement.Automaticlicenseplaterecognitiontechnologyhasbeenwidelyused.Keywords:licenseplaterecognitionsystem,intelligenttransportation,licenseplatelocalization,charactersegmentation,characterrecognition目录摘要...............................................................................................................................................目录..........................................................................................................................................II第一章引言..............................................................................................................................0第二章汽车车牌识别系统地研究.............................................................................................12.1研究目地和意义...................................................................................................................12.2国内外研究现状...................................................................................................................12.3主要应用领域.......................................................................................................................2第三章汽车车牌识别系统地设计.............................................................................................43.1汽车牌照地特点...................................................................................................................43.2汽车车牌识别系统地组成...................................................................................................43.3详细设计步骤.......................................................................................................................53.3.1提出总体设计方案............................................................................................................53.3.2图像采集............................................................................................................................63.3.3车牌牌照地定位和分割....................................................................................................73.3.4车牌地预处理.....................................................................................................................93.3.5牌照地二值化处理与去除噪声.......................................................................................113.4字符地分割..........................................................................................................................133.5字符地自动识别..................................................................................................................153.5.1构建标准字库...................................................................................................................153.5.2字符识别过程..................................................................................................................163.6语音自动播报识别结果......................................................................................................17第四章设计结果及分析..........................................................................................................194.1设计结果.............................................................................................................................194.2结果分析.............................................................................................................................19结论.......................................................