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ID:36421665
大小:6.53 MB
页数:79页
时间:2019-05-10
《基于ICT图像的轮廓特征重构研究与应用》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、西南交通大学硕士学位论文基于ICT图像的轮廓特征重构研究与应用姓名:董方申请学位级别:硕士专业:机械设计及理论指导教师:李柏林20090301西南交通大学硕士研究生学位论文第Ⅱ页ABSTRACTAlongwiththedevelopmentofICTtechnologyandintroductionoffeaturetechnologyintoreverseengineering,thefeature—basedreverseengineeringofICTslicingimageisproposedandhasbeenbecomingahottopic
2、ofcurrentresearchinthisarea.Inthisdissertation,somekeytechnologiesrelatedtothegeometricfeaturemodelreconstructionbasedonIndustrialCTslicingdatesarestudied.Itmainlyincludes:ImageprocessingofICTgrayimagesisfirstlyaccomplished.OnthebasisofanalyzingthefeaturesofindustrialCTimagesandt
3、hemethodsofexistentimagesegmentation,theexistingOtsumethodisresearched.TheimageissegmentedthroughimprovedmethodofchaoticPSOandtwo—dimensionalOtsu.Themethodhasstronganti-noiseabilityandgoodsegmentationresults.Atthesametime,chaoticparticleoptimizationisintroducedandprovidesanewwayf
4、ortwo—dimensionalOtsumethodofreal-timeapplications.ClassificationandPresentationoffeaturesisanalyzedandsummarizedthoroughlyinvariationdesignbasedCADmodelingmethodologyinreverseengineering.Curvaturebasedfeatureidentificationmethodaresynthesized.Theoryofmultiscaleisintroducedintose
5、ctionfeaturecurvesegmentation.Atechnicalideaofautomaticfeaturesegmentationisproposedbasedoncurvaturemulti-scaleanalysis.Basedoncurvaturescalespace,theoverallcontourgeometricfeatureandthedetailsfeatureareretained.Anewtechnicalapproachisprovidedforcapturinghighlevelproductstructure
6、.Basedontheforegoingresearch,thispaperstudiedthecontoursegmentationbasedonfeaturepoints,thesefeaturepointsareregardedasthegisttOrecognizesectionfeature.Whenthesectionfeatureisrecognized,theyshouldbefittedwithLSM.Whenthesectioncurvefeatureisfitted,theconstrainedoptimizationtechniq
7、uebetweenthecontourcurvesisstudied.TheresearchresultsofthispaperCanbeanimportantreferenceforthe西南交通大学硕士研究生学位论文第1ll页futureresearch.Keywords:IndustrialCT;Imageprocessing;Scale-space;Curvature;Featurepointdetection西南交通大学.曲南父逋大罕。学位论文版权使用授权书本学位论文作者完全了解学校有关保留、使用学位论文的规定,同意学校保留并向国家有关部门或机
8、构送交论文的复印件和电子版,允许论文被查阅和借阅。本人授权西南交通大学可以将本学
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