一拖n个cmos成像器同步影像传感系统分析-analysis of synchronous image sensing system for n cmos imagers.docxVIP

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一拖n个cmos成像器同步影像传感系统分析-analysis of synchronous image sensing system for n cmos imagers.docx

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一拖n个cmos成像器同步影像传感系统分析-analysis of synchronous image sensing system for n cmos imagers

ABSTRACTIntheapplicationofbinocularstereovision,threedimensionalimagingandmulti-objectvideosupervisory,it’sverycriticaltoacquiretheimagesofthetargetfrommultiplepositionsandvariousangles,andthemulti-channelvideoimageprocessingtechnologyistheonlywaytomeettherequirement.Inthetraditionalmulti-channelvideosystem,dataistransferredthroughindependenceinterfacesbymeansofmultiplevideochannelsindependentlytransporting.However,itincreasesthedifficultyforbackwardvideoprocessingsystemtocapturevideoandtransferdatasynchronouslyfromdifferentchannelsofvideo.Alongwiththewidespreadapplicationsofvideotechnologyinportablestereovisionmeasuringinstrumentsandmicro-miniaturevideoequipment,thedemandofmicrominiaturizationinvideoimagesystembecomesincreasinglyhigh.Asaconsequence,itwillbeofgreatsignificancetolookforavideotransmissiontechnology,whichenablestotransfermultichannelvideosynchronouslywithavideointerfaceonly.BecauseofthevariousadvantagesofCMOSsensor,suchashighintegration,relativelylowpowerconsumptionandhighcosteffectiveness,CMOSsensorhasbeenwidelyappliedinindustrialfield.Anarchitectureandimplementmethodof“onedrivingN”CMOSsensorimagesynchronizationsensingsystemisproposedinthispaper.ThesystemacquirestheimagesfromNchannelsofCMOSsensorsynchronously,andthenoutputsthemthroughavideointerface.Inordertoillustratethefeasibilityofthisdesign,animplementationmethodofdual-CMOSsensorimagesynchronizationsensingsystemisproposedinthispaper.Thesystemtransfersdual-channelvideoimagedataviaaVGAvideointerface.Inaddition,itcanbeswitchedworkingasthesinglechanneloutputmodeanddual-channelsynchronousoutputmode,withfunctionofvideofreezing.Thisarticledetailstheworkingprincipleofthesystem，andthedesignprocessofthesystem,whichincludesthedesignofsystemhardwarestructureandthebuildingofCPLDdigitallogicalsystem.Forpurposeofimprovingthereal-timeperformanceandthestabilityofthesystem,Ping-Pongoperationtechniqueisappliedinthevideostreamingtransmissionandstorage.Atlast,resultsofthetimingsimulationandhardwaredebuggingofthesystem