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1、Abstract3-DvisionmeasurementisanewbornandpromisingtechnologyanditiswidelyusedinReverseEngineering,rapidinspectionofproductetc.The3-DlasermeasurementsystemhasbeendevelopedandcommercializedintheCenterofRapidPrototypingofHUST(HuazhongUniversityofScienceandTechnology).Onthesucc
2、essoftheHRE-I3-DlasermeasurementsystembasedonthedoubleCCD,thenewmeasurementbasedonthesingleCCDisprovided.Aimingatthe3-Dlasermeasurementsystemandthejoint-typemeasurementsystem,thepaperputforwardthetechnologyoftrackingmeasurementbasedonpre-scanningandsignalseparately.Byanalyz
3、ingthetheoryandrealizationofthesingleCCDmeasurement,themethodisachieved,whichuselinearlaser,singleCCDandbuildthemodelofeyeletimagingandlaserplaneconstraint.Usingcomputertocontrolcameratoshottheobjectcontinuallyandprocesstheimagetimely,thepelscoordinatesofthelasercanbegetacc
4、urately.The2-Dcoordinatecanbechangedto3-Dcoordinatebasedonthearithmeticmodelbuildedandtheautomaticmeasurementiscompletedaftertheobjectcanberebuildaspointcloud.Thekeypartofthemeasurementsuchaslens,CCDvidiconandimagegatheringmodulecardisdissertatedinthisthesis.Duringthecourse
5、of3-Dlasermeasurementsystemscanning,becausethelimitofdepthoffield,theresultisalwaysoutofprecisionwhenthelargesurfaceundulationappear.Toassurethesurfacetobeinthedepthoffield,thetrackingcontrolisneeded.Thepaperputforwardthataccordingtoapproximatesurfaceinformationafterthepre-
6、scanning,thesameroutetrackingscanningcanassurethemeasuredsurfaceinthedepthoffieldofcamera.Bythismeans,theaccuratemeasurementcanbeachieved,Forthejoint-typemeasurementsystem,Accordingtohowtocontroltheobjectsurfaceindepthoffieldandtobeverticaltolasersurface,thepaperputforwardt
7、hesignaltrackingarithmetictoachievetrackingmeasurementandanalyzeit.Keywords:ComputerVisionReverseEngineeringImageProcessingTrackingMeasurementJoint-TypeMeasurementDepthandFieldII1绪论随着科学技术的迅猛发展和日益激烈的市场竞争制造业在产品结构生产模式和生产过程方面都发生了巨大的变化现代制造技术已逐渐向着自动化集成化智能化和柔性化的方向发展以尽可能低的成本和尽可能短的时
8、间设计出高质量符合市场需求的产品是各个生产制造企业共同的愿望反向工程就是这样应运而生其在缩短产品设计周期消化国内外的先进技术和产品中发挥着越来越重要的作用反向工程是
