资源描述:
《单目视觉测量系统及随动跟踪测量技术的研究》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、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