路面裂缝图像自动识别系统研究

《路面裂缝图像自动识别系统研究》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、分类号：U4910710—06241233谖孝犬海硕士学位论文路面裂缝图像自动识别系统研究赵轲导师姓名职称申请学位级别论文提交日期学位授予单位孙朝云教授答辩委员会主席学位论文评阅人赵祥模教授朱京平教授胡力群副教授AbstractWiththerapiddevelopmentofpavementtrafficindustry,thepavementcracksdiseasepreventionandtreatmentissetedgreatattentionbythemaintenancedepartment．Tradit

2、ionalmethodbasedonthevisualinspectionhasbecomeincreasinglycannotmeettherequirementsofhighwaydevelopment，andautomaticallypavementcracksdetectionbasedonimageprocessingtechnologystartedtobefocusbypeople．Althoughthetechniquesofdetectingpavementcrackshavemadegreatprog

3、ress，digitalimageprocessingalgorithmsarestilladifficultpointinthestudy．Thisarticleismainresearchaboutthesoftwareofautomaticallypavementcracksdetectionsystem．Thearticlefirstintroducesthedevelopmentoftheautomaticpavementcracksdetectionsystemathomeandabroad，andgives

4、theclassificationofpavementcracks，then，focusesontheroad—relatedimageprocessingalgorithmsoftheautomaticpavementcracksdetection，includingcracksinimageenhancement，imagesegmentation，cracksfeatureextraction，aswellascracktypeclassificationandcrackparametersestimation．D

5、igitalimageprocessingtechniquesarethecenterofthesystemandarealsothekeycontentoftheresearch．Thisarticlereviewtheexistingdigitalimageprocessingtechnologyoftheautomaticpavementcracksdetectionfirst，andchoosetheappropriateimageprocessingalgorithmsbycomparingthecharact

6、eristicsofavarietyofalgorithms，mainabetterimageprocessingresultsatlast，provideareliableguaranteeforthecracktypeclassificationandcrackparametersestimation．Inthispaper,wesmooththecrackimagebymedianfilter,andremovenoiseofcracksimageeffectively．Iterativethresholdsegm

7、entationmethodisusedtoautomaticallyacquireimagecrackthreshold，andswitchacracksimageintoabinaryimagebetter．Extractionofcrackparametersisthemainpurposeofthesystemdesign．Mainlyincludethecracktypeclassification，aswellaslength，areacalculations．Systemusesathresholdmeth

8、od，inaccordancewiththenumberofconnectedregionscomparedwiththethresholdvalue，classifiedlinearcracksandblockcrackingfirstofall；thenclassifytransversecrackingandl