Using the DLP Pico 2.0 Kit for Structured Light Applications .pdf

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1、ApplicationReportDLPA021A–January2010–RevisedOctober2011UsingtheDLPPico2.0KitforStructuredLightApplications.....................................................................................................................................................ABS

2、TRACTTheterm“structuredlight”generallyreferstotheprocessofprojectingaknownpatternofpixelsontoasceneorobject,usuallyusingaprojector,laserscannerorlaserinterference-basedstripegeneratingsystem.Whencombinedwithasynchronizedcamera,astructuredlightprojectorcanenab

3、lemanyinterestingapplications,including:highlyaccurate3Dsurfacescanning,dynamicsceneillumination,distortioncorrection,numeroustypesofadvancedhuman/machineinterfaces,andmanymorenewandexcitingapplications.Sincethemid-1990s,whenlowcost/highqualitydigitalprojecto

4、rsfirstbecamewidelyavailable,theareaofstructuredlightandthemoregeneralcategoryofprojector/cameraapplications,havebeenhotbedsofuniversityandindustryresearch(forsomeexamples,seewww.procams.org).DLPprojectorslonghavebeenthetoolofchoiceforstructuredlightprojectio

5、n,duetounmatchedpixelsharpness,contrastandothercriticalfiguresofmeritforprojector/camerasystems.Recently,TIhasmadeseveralimprovementstoitspopularandwidelyavailableDLPPicoDevelopersKit-commonlyreferredtoasthe“PicoKit2.0.”Mostnotablearenewmodesofoperationspecif

6、icallydesignedtoenhancestructuredlightapplicationperformance.Thisdocumentprovidestheinformationnecessarytotakeadvantageofthesenewstructuredlightmodesinyourapplication.Contents1Overview...........................................................................

7、..........................................32NewFeatures................................................................................................................33ExternalPatternExample....................................................................

8、..............................44InternalPatternExample.................................................................................................145Conclusion.......................