结构光3D扫描原理课件-经典必看PPT文档格式.ppt
- 文档编号:13166273
- 上传时间:2022-10-07
- 格式:PPT
- 页数:34
- 大小:7.11MB
结构光3D扫描原理课件-经典必看PPT文档格式.ppt
《结构光3D扫描原理课件-经典必看PPT文档格式.ppt》由会员分享,可在线阅读,更多相关《结构光3D扫描原理课件-经典必看PPT文档格式.ppt(34页珍藏版)》请在冰豆网上搜索。
ComputerVision,Spring201915-385,-685Instructor:
@#@S.NarasimhanWean5403T-R3:
@#@00pm4:
@#@20pmLecture#17,StructuredLight+RangeImagingLecture#17,(ThankstoSlidesfromLevoy,Rusinkiewicz,Bouguet,Perona),3DScanning,StructuredLightReconstruction,AvoidproblemsduetocorrespondenceAvoidproblemsduetosurfaceappearanceMuchmoreaccurateVerypopularinindustrialsettingsReading:
@#@MarcLevoyswebpages(Stanford)KatsuIkeuchiswebpages(UTokyo)PeterAllenswebpages(Columbia),StereoTriangulation,I,J,Correspondenceishard!
@#@,I,J,StructuredLightTriangulation,Correspondencebecomeseasier!
@#@,StructuredLight,Anyspatio-temporalpatternoflightprojectedonasurface(orvolume).Cleverlyilluminatethescenetoextractsceneproperties(eg.,3D).Avoidsproblemsof3Destimationinsceneswithcomplextexture/BRDFs.Verypopularinvisionandsuccessfulinindustrialapplications(partsassembly,inspection,etc).,LightStripeScanningSingleStripe,Camera,Source,Surface,Lightplane,OpticaltriangulationProjectasinglestripeoflaserlightScanitacrossthesurfaceoftheobjectThisisaverypreciseversionofstructuredlightscanningGoodforhighresolution3D,butneedsmanyimagesandtakestime,Triangulation,Projectlaserstripeontoobject,Object,LightPlane,Triangulation,Depthfromray-planetriangulation:
@#@Intersectcameraraywithlightplane,Laser,Object,LightPlane,ImagePoint,Example:
@#@Laserscanner,Cyberwarefaceandheadscanner,+veryaccurate0.01mmmorethan10secperscan,DigitalMichelangeloProjectgraphics.stanford.edu/projects/mich/,Example:
@#@Laserscanner,Portable3Dlaserscanner(thisonebyMinolta),FasterAcquisition?
@#@,ProjectmultiplestripessimultaneouslyCorrespondenceproblem:
@#@whichstripeiswhich?
@#@Commontypesofpatterns:
@#@,BinarycodedlightstripingGray/colorcodedlightstriping,BinaryCoding,Pattern1,Pattern2,Pattern3,Projectedovertime,Example:
@#@3binary-encodedpatternswhichallowsthemeasuringsurfacetobedividedin8sub-regions,Faster:
@#@stripesinimages.,BinaryCoding,AssigneachstripeauniqueilluminationcodeovertimePosdamer82,Space,Time,BinaryCoding,Pattern1,Pattern2,Pattern3,Projectedovertime,Example:
@#@7binarypatternsproposedbyPosdamer&@#@Altschuler,Codewordofthispxel:
@#@1010010identifiesthecorrespondingpatternstripe,Morecomplexpatterns,Zhangetal,Worksdespitecomplexappearances,Worksinreal-timeandondynamicscenes,Needveryfewimages(oneortwo).Butneedsamorecomplexcorrespondencealgorithm,ContinuumofTriangulationMethods,Slow,robust,Fast,fragile,3DAcquisitionfromShadows,Bouguet-Perona,ICCV98,3DModelAcquisitionPipeline,3DScanner,3DModelAcquisitionPipeline,3DScanner,3DModelAcquisitionPipeline,3DScanner,3DModelAcquisitionPipeline,3DScanner,3DModelAcquisitionPipeline,3DScanner,3DModelAcquisitionPipeline,3DScanner,Real-Time3DModelAcquisition,NextClass,PolyhedralObjectsandLineDrawingReadingNotes,
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 结构 扫描 原理 课件 经典