基于图像处理的路面裂纹识别研究

《基于图像处理的路面裂纹识别研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、长沙理工大学硕士学位论文基于图像处理的路面裂纹识别研究姓名：刘德超申请学位级别：硕士专业：交通信息工程及控制指导教师：李鸿20090401关键词：路面裂纹；图像去噪；边缘检测；扩展sobeI算子；形态学去噪；神经网络ⅡABSTRACTAsChina’Srapideconomicdevelopment，transportation’Simportanceinthenationaleconomyandpeople’Slivesbecomemoreandmoreobevious．HighwayTrafficisinanimportantposition，andit’Salsobeenpaidmo

2、reattentionwiththerapiddevelopmentofChina’Seconomy．Inordertoimprovetheroadservicelife，roadmaintenanceworkhasbeenpaidmoreandmoreattention，relyingontraditionalmanualmethodsofdetectingtheroaddamagecannotadapttOtheneedsoftherapidhighwaysdevelopment，SOthereseachanddevelopmentinthesystemofautomaticdetec

3、tingroadsurfacedamagehasbeenparticularlyurgent．Thisarticledescribesthedetectionofroadcracksbasedontheimageprocessing．Firstintroducethearchitectureofthesystemindetectingroadcracks，describethemethodsandreasonsinchoosingthehardwareandtheworkingprincipleofthesystem．second，makeade-noisingpretreatmentto

4、theroadcrackimageafteranalyingthefertureoftheimage．Nomorlytheimageswecollecthavealotofnoiseforthecomplexroadconditionsandthedevice，thenoisebringalotofdifficultyindetectingtheroadcrack．Inordertomakethefollow—upworkeasier，doade—noisingpretreatmenttotheimage．AccordingtOthefeatureoftheimage，usethemedi

5、anfiltertOdothede—noisingword，andcomparetheresulttOtheonethatusemeanfilter，findoutthevalidityofusingmedianfilterandtheadvantageforfollow—upwork．Third，edgedetectionandimagesegmentationontheimagefromthesecondprocessingmakeabinaryimagewhichmaketherecognitionpossible．Comparingtheprewittoperatortotheso

6、beloperator，verifythevalidityandadvantageofsobeloperator，extendthesobeloperatortOmaketheedgeresponsemoreintense，andthatcanletUSusethedouble—humpedmethodinimagesegmentation．Therewillbesome“isolated’spotaftertheimagesegmentation，SOthefilterontheboolimageisneeded．weusethemorphologicalmethodtodothewor

7、k，andproveitworks．wecanfindthatthebooledgeisfilledupafterusingthemorphologicalmethod．Thefill—extentisrelatedtothematrix’size．Thecrackwhosesizeisbiggertanthematrixisnotfilledup，andthenumberofcrackpixelsisnotchange