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上传者: byxoptic 2013-12-07 评分1 评论0 下载0 收藏0 阅读量98 暂无简介 简介 举报

简介:本文档为《超多视角显示pdf》,可适用于硬件技术领域,主题内容包含MultiprojectionoflenticulardisplaystoconstructaviewsupermultiviewdisplayYa符等。

MultiprojectionoflenticulardisplaystoconstructaviewsupermultiviewdisplayYasuhiroTakaki*andNichiyoNagoInstituteofSymbioticScienceandTechnology,TokyoUniversityofAgricultureandTechnology,NakachoKoganei,Tokyo,Japan*ytakakicctuatacjpAbstract:Anewsupermultiview(SMV)displaysystemthatenablesthenumberofviewstobeincreasedisproposedAllthreedimensional(D)imagesgeneratedbymultiplemultiviewflatpaneldisplaysaresuperimposedonacommonscreenusingamultiprojectionsystemTheviewingzonesoftheflatpanelDdisplayareproducedinthepupilsoftheprojectionlensesandthenimagedtotheobservationspacebyascreenlensSixteenflatpanelDdisplayshavingviewswereusedtoconstructaSMVdisplayhavingviewsTheDresolutionwasThescreensizewasinchesThehorizontalintervaloftheviewingzoneswasmmOpticalSocietyofAmericaOCIScodes:()Imagingsystems()DisplaysReferencesandlinksYKajiki,HYoshikawa,andTHonda,“Hologramlikevideoimagesbyviewstereoscopicdisplay,”ProcSPIE,–()THonda,YKajiki,KSusami,THamaguchi,TEndo,THatada,andTFujii,“Threedimensionaldisplaytechnologiessatisfying‘supermultiviewcondition,”SPIECrticalReviewsCR,–()THonda,YKajiki,SSusami,THamaguchi,TEndo,THatada,andTFujii,“AdisplaysystemfornaturalviewingofDimages,”inThreedimensionaltelevision,videoanddisplaytechnologies,BJavidi,FOkanoed(SpringerVerlag,BerlinHeidelberg,Germany,)p–THonda,DNagai,andMShimomatsu,“DevelopmentofDdisplaysystembyafanlikearrayofprojectionoptics,”ProcSPIE,–()HNakanuma,HKamei,andYTakaki,“NaturalDdisplaywithdirectionalimagesusedforhumanengineeringevaluation,”ProcSPIE,–()YTakaki,“Thintypenaturalthreedimensionaldisplaywithdirectionalimages,”ProcSPIE,–()YTakaki,“HighDensityDirectionalDisplayforGeneratingNaturalThreeDimensionalImages,”ProcIEEE(),–()YTakaki,andTDairiki,“directionaldisplayhavingVGAresolutionforhighappearanceimagegeneration,”ProcSPIE,X–()MTsuboi,MFujioka,YTakaki,andTHorikoshi,“RealTimeRenderingforaFullParallaxDDisplayUsingHighDensityDirectionalImages,”inProceedingsofthethInternationalDisplayWorkshops(IDW’),pp–()KKikuta,andYTakaki,“DevelopmentofSVGAresolutiondirectionaldisplay,”ProcSPIE,U–()LLipton,“FoundationsoftheStereoscopicCinema,”availablefordownloadfromhttp:dcurtineduaulibraryfoundationcfm,,pp–WAIjsselsteijn,HdeRidder,andJVliegen,“Effectsofstereoscopicfilmingparametersanddisplaydurationonthesubjectiveassessmentofeyestrain,”ProcSPIE,–()NADodgson,“AnalysisoftheviewingzoneoftheCambridgeautostereoscopicdisplay,”ApplOpt(),–()SKKim,DWKim,YMKwon,andJYSon,“EvaluationofthemonoculardepthcueinDdisplays,”OptExpress(),–()YKim,HChoi,JKim,SWCho,YKim,GPark,andBLee,“Depthenhancedintegralimagingdisplaysystemwithelectricallyvariableimageplanesusingpolymerdispersedliquidcrystallayers,”ApplOpt(),–()NADodgson,“AutostereoscopicDDisplays,”Computer(),–()SPHines,“Autostereoscopicvideodisplaywithmotionparallax,”ProcSPIE,–()NADodgson,JRMoore,SRLang,GMartin,andPCanepa,“AtimesequentialmultiprojectorautostereoscopicDdisplay,”JSocInfDisp(),–()#$USDReceivedFebrevisedMaracceptedAprpublishedApr(C)OSAAprilVol,NoOPTICSEXPRESSYTakaki,OYokoyama,andGHamagishi,“Flatpaneldisplaywithslantedpixelarrangementforviewdisplay,”ProcSPIE,–()CvanBerkel,andJAClarke,“CharacterizationandoptimizationofDLCDmoduledesign,”ProcSPIE,–()YKusakabe,MKanazawa,YNojiri,MFuruya,andMYoshimura,“Ahighdynamicrangeandhighresolutionprojectorwithdualmodulation,”ProcSPIE,Q()TNagoya,TKozakai,TSuzuki,MFuruya,andKIwase,“TheDILAdevicefortheworld’shighestdefinition(KK)projectionsystems,”inProceedingsofInternationalDisplayWorkshop(IDW’),pp–()IntroductionAnaturalthreedimensional(D)displayisonethatdoesnotconflictwiththehumanDperceptionsothatitisfreefromvisualfatigueAsupermultiview(SMV)display–,whichhasalargenumberofviews,wasproposedasaglassesfreeandnaturalDdisplayAhighdensitydirectional(HDD)display–,wheretheviewingzonesaregeneratedatinfinity,wasalsoproposedTheimportantpointregardingthesetwotechniquesistoincreasethenumberofviewstoevoketheaccommodationresponsesandtoprovidesmoothmotionparallaxInthepresentpaper,anewSMVdisplaysystemthatallowsthenumberofviewstobeincreasedisproposedConventionalDdisplayshavetwoproblemswithrespecttohumanDperceptionOneoftheseproblemsistheaccommodationvergenceconflict,Accommodationcausestheeyestofocusonanobject,andvergenceperceivesthedepthofanobjectfromtherotationanglesofbotheyesConventionaltwoviewandmultiviewDdisplaysprojectdifferentimagestotheleftandrighteyesWhentwodifferentimagesarepresentedtotheleftandrighteyes,vergencecorrectlyperceivesthedepthpositionofaDimageHowever,becausebothimagesaredisplayedonthedisplayscreen,accommodationmakestheeyesfocusonthedisplayscreenandnotontheDimageSincethereisacloseinteractionbetweenvergenceandaccommodation,thisconflictcausesvisualfatigueThesecondproblemistheabsenceorimperfectionofmotionparallaxMotionparallaxisthechangeinaretinalimageresultingfromthemovementofaviewer’seyepositionTwoviewDdisplaysdonotgeneratemotionparallax,andmultiviewDdisplaysgeneratediscontinuousmotionparallaxbecausearetinalimagedoesnotchangeuntiltheeyemovestoanadjacentviewingzoneThedetailedanalysisoftheviewingzonesandthemotionparallaxofmultiviewDdisplaysisgiveninRefThisreducesthepresenceandrealismofDimagesperceivedbyviewers,becausehumansunconsciouslypredicttheretinalimagechangeduetotheirmovementAnaturalDdisplayisdefinedasfreefromthesetwoproblemsTheSMVdisplaytechniquemakestheintervalbetweenviewingzonessmallerthanthepupildiameter,sothattwoormorerayspassingthroughthesamepointinspacepassthroughtheeyepupilsimultaneously–Therefore,theeyescanfocusonthatpointTheHDDdisplaytechniquesamplesrayproceedingdirectionswithasmallanglepitchtoallowtwoormoreraystopassthroughthepupilssimultaneouslyTheSMVdisplaytechniqueproducesalargenumberofparallaximages(perspectiveprojectionsofDscenes)intothecorrespondingviewingzonesTheHDDdisplaytechniqueprojectsalargenumberofdirectionalimages(orthographicprojections)withnearlyparallelraysproceedinginthecorrespondingdirectionsThedisplaysystemsdevelopedtoconstructtheSMVandHDDdisplaysareexplainedinSecAheadmounttypeSMVdisplayalsohasbeenproposedUsingthistechnique,therequirednumberofviewsisnotlargeHowever,glassesfreeobservationisimpossibleTheSMVHDDdisplaysdescribedaboveprovidehorizontalparallaxThepossibilityofrealizingfullparallaxnaturalDdisplaysusingtheintegralimagingtechniquewasinvestigatedThenumberofviewsoftheglassesfreeSMVHDDdisplayshasbeenincreasedHowever,thisincreaseresultsindifficultieswiththepreviousdisplaysystemsInthepresentstudy,anewSMVdisplaysystemthatcombinesthemultiprojectionsystemandtheflatpanelsystemisproposedtoachieveafurtherincreaseinthenumberofviewsAprototypeSMVdisplaywithviewpointsisalsodemonstrated#$USDReceivedFebrevisedMaracceptedAprpublishedApr(C)OSAAprilVol,NoOPTICSEXPRESSPreviousSMVHDDdisplaysystemsSeveralsystemshavebeenusedtoconstructautostereoscopicdisplaysAmultiprojectionsystemandaflatpanelsystemhavebeenusedtoconstructtheSMVandHDDdisplaysAnSMVdisplaywithviewswasconstructedusingafanlikearrayofprojectionoptics(FAPO)HDDdisplayswithandraydirections,,wereconstructedusingatwodimensional(D)arrayofprojectionsystemsHDDdisplayswithandraydirections,,wereconstructedusingaflatpanelsystemthatconsistsofalenticularlensandaflatpaneldisplayBesidestheabovetwosystems,thedisplaysystemusingthefocusedlightsourcearray(FLA)wasdevelopedtoconstructthefirstSMVdisplaywithviews–However,developmentoftheFLAsystemhasnotbeencontinuedThemultiprojectionsystemconsistsofalargenumberofprojectionopticsandacommonscreenThenumberofprojectorsisequaltothenumberofviewsTheadvantageofthemultiprojectionsystemisthattheresolutionofDimagesandthenumberofviewscanbeincreasedindependentlyTheresolutioncanbeincreasedbyusinghigherresolutionprojectorsThenumberofviewscanbeincreasedbyusingmoreprojectors,ie,themultiprojectionsystemisscalableDisadvantagesofthemultiprojectionsystemincludethesystemcomplexityandthesystemsizeInaddition,alargenumberofopticalcomponentsarerequired,inadditiontoalongprojectiondistanceTheflatpanelsystemconsistsofahighresolutionflatpaneldisplayandalenticularlensAdvantagesoftheflatpanelsystemincludeitssimplicityandthicknessOnedisadvantageoftheflatpanelsystemisthetradeoffbetweentheDresolutionandthenumberofviewsTheresolutionrequiredfortheflatpaneldisplayistheproductoftheDresolutionandthenumberofviewsInordertoincreasethenumberofviews,alargenumberofprojectorsarerequiredforthemultiprojectionsystem,andanultrahighresolutionflatpaneldisplayisrequiredfortheflatpanelsystemProposedSMVdisplaysystemInthepresentstudy,weproposeanewSMVdisplaysystemthatdoesnotrequirealargenumberofprojectorsandanultrahighresolutionflatpaneldisplayinordertoincreasethenumberofviewsTheproposedsystemisshowninFigSeveralflatpanelsystemsarecombinedbyamultiprojectionsystemTheflatpanelsystemsarearrangedinamodifiedDarrangementInthemodifiedDarrangement,alloftheprojectorsarearrangedtwodimensionallywithdifferenthorizontalpositionsAllDimagesproducedbythenumerousflatpanelsystemsareprojectedonaverticaldiffuser,whichisacommonscreenAlenticularlensoftheflatpanelsystemsgeneratesmultipleviewingzonesatacertaindistanceIntheproposedsystem,themultipleviewingzonesofeachflatpanelsystemaregeneratedonanincidentpupilplaneofitscorrespondingprojectionlensEachprojectionlensprojectsthedisplaysurfaceofitscorrespondingflatpanelsystemonthecommonscreenEachprojectionlensisappropriatelyshiftedtransverselyalongitsopticalaxissothatallprojectedimagesaresuperimposedatthesamepositiononthecommonscreenAscreenlens,whichislocatedonthecommonscreen,imagestheexitpupilsofalloftheprojectionlensesatacertaindistancefromthecommonlenstogenerateviewingzonesforobserversAverticaldiffuserenlargestheviewingzonesintheverticaldirection#$USDReceivedFebrevisedMaracceptedAprpublishedApr(C)OSAAprilVol,NoOPTICSEXPRESSFigSMVdisplaysystemthatcombinesmultipleflatpanelsystemsbyamultiprojectionsystemFigureshowsthehorizontalsectionalviewoftheproposedsystemThelenticularlensisshiftedspatiallyontheflatpaneldisplayinordertogenerateviewingzonesontheincidentpupilofacorrespondingprojectionlensAsexplainedpreviously,theprojectionlensesareappropriatelyshiftedtosuperimposeDimagesproducedbyallflatpanelsystemsonthecommonscreenThescreenlensimagestheviewingzonesoftheexitpupilsoftheprojectionlensesontotheobservationspacetogeneratemassiveviewingzonesforobserversFigureshowstheverticalsectionalviewoftheproposedsystemTheverticaldiffuseronthecommonscreendiffusesraysintheverticaldirectionsothattheviewingzonesgeneratedbytheprojectionlensesareenlargedverticallyTheenlargedviewingzonesoverlaponeanothertoproduceacommonverticalviewingzoneforobserversThearrangementoftheprojectionlensesisillustratedinFigTheprojectionlensesarealsoarrangedinthemodifiedDarrangementThelenticularlensoftheflatpanelsystemproducespseudoscopicviewingzones,ie,themultipleviewingzonesarerepeatedhorizontallyTheprojectionlensesoftheproposedsystemhaverectangularaperturestoblockthelightthatpassesthroughthepseudoscopicviewingzonesThemodifiedDarrangementmakesthetransparentareasofthepupilsofalloftheprojectionlensestobecontinuousinthehorizontaldirectionTherefore,themultipleviewingzonesproducedbytheflatpanelsystemsareimagedatafixeddistancefromthecommonscreenwithoutanygapsinthehorizontaldirection#$USDReceivedFebrevisedMaracceptedAprpublishedApr(C)OSAAprilVol,NoOPTICSEXPRESSFigHorizontalsectionalviewoftheproposedSMVdisplaysystemFigVerticalsectionalviewoftheproposedSMVdisplaysystemFigArrangementofprojectionlensesandviewingzonesinlensaperturesTheproposedSMVsystemiscomparedwiththemultiprojectionsystemandtheflatpanelsystemThepurposeoftheproposedSMVsystemistoincreasethenumberofviewsTheresolutionandthenumberofflatpaneldisplaysrequiredforthethreesystemsareshowninTableThetargetnumberofviewsofanSMVdisplayisdenotedbyV,andthetargetDresolutionisdenotedbyXYThenumberofflatpaneldisplaysusedintheproposedsystemisdenotedbyLForthemultiprojectionsystem,therequirednumberofflatpaneldisplaysisequaltothenumberofviews,andthesamenumberofprojectionopticsisrequiredFortheflatpanelsystem,despitethefactthatonlyoneflatpaneldisplayisrequiredandnoprojectionopticsisrequired,theresolutionrequiredfortheflatpaneldisplayincreasesinproportiontothenumberofviewsVFortheproposedSMVdisplaysystem,therequirednumberofflatpaneldisplaysislessthanthenumberofviews,andtheresolutionrequiredforflatpaneldisplaysisproportionaltoVLTherefore,theproposedSMVdisplaysystemcanbeconstructedusingamoderatenumberofflatpaneldisplaysofmoderateresolution#$USDReceivedFebrevisedMaracceptedAprpublishedApr(C)OSAAprilVol,NoOPTICSEXPRESSTableRequirementsforflatpaneldisplaysResolutionNumberofpanelsMultiprojectionsystemXYVFlatpanelsystemXYVProposedsystemXYVLLIntheaboveexplanation,theflatpanelsystemusesalenticularlenstoproducemultipleviewingzonesAparallaxbarriercanalsobeusedinsteadofalenticularlensIntheproposedsystem,thecombinationofoffsetmultipleprojectorsandaverticaldiffuserisusedThiscombinationwaspreviouslyproposedinReftoconstructmultiviewdisplaysTheproposedsystemusesaDarrayoflenticulardisplaysThecombinationofaonedimensionalarrayoftimesequentialmultiviewdisplaysandamultiprojectionsystemwaspreviouslyproposedinRefTheDdisplaysthattheauthorspreviouslydevelopedemployedeitherthemultiprojectionsystem,,ortheflatpanelsystem,,ThenewDdisplaysystemproposedinthismanuscriptcombinesbothsystemsinordertoincreasethenumberofviewsTotheauthors’knowledge,thecombinationofthemultiprojectionsystemandthelenticularsystemhasnotbeenproposedinanyotherstudyPrototypesystemWeconstructedanSMVdisplaywithviews(SMV)usingtheproposedSMVdisplaysystemSixteenflatpanelsystemswithviewswerecombinedbyamultiprojectionsystemTheviewflatpanelsystemconsistedofalenticularlensandaliquidcrystaldisplay(LCD)panelwithaspecialsubpixellayoutreferredtoastheslantedsubpixelarrangementTheDresolutionoftheLCDpanelwas,andthescreensizewasinchesThephotographofthesubpixelstructureofthisflatpaneldisplayisshowninFigSincethesubpixelarrangementisslanted,thelenticularlensisnotrequiredtobeslantedTheconventionalmultiviewdisplaysareusuallyconstructedbyslantingthelenticularlens,becausethesubpixellayoutofconventionalflatpaneldisplaysisgenerallytheRGBstripelayout,ie,thesubpixelarrangementisnotslantedIntheslantedsubpixelarrangement,oneoftheverticaledgesofonesubpixelandtheoppositeverticaledgeofanothersubpixelofthesamecolorintheadjacentrowoccupythesamehorizontalpositionTherefore,rayemittingareasofsubpixelsarecontinuousinthehorizontaldirectionforeachcolorTheuseoftheslantedsubpixelarrangementhastwoadvantagesOneisthattheviewingzonesareproducedalongahorizontalline,andtheotheristhatthecrosstalkamongviewingzonesistheoreticallyzeroUsingtheslantedlenticulartechnique,theviewingzonesarealignedalongaslantedhorizontalline,andthereisconsiderablecrosstalkamongviewingzonesFigPhotographofthesubpixelstructureofanLCDpanelwithaslantedsubpixelarrangement#$USDReceivedFebrevisedMaracceptedAprpublishedApr(C)OSAAprilVol,NoOPTICSEXPRESSInordertoproduceviewingzones,agroupofsubpixels(subpixelsforeachR,G,andBcolors)correspondstooneofcylindricallensesthatconstitutethelenticularlensTheDresolutionoftheflatpanelsystemwasThelenticularlenswasdesignedtoproduceviewingzonesinthehorizontalwidthofmmatadistanceofmmfromthelenticularlensThehorizontalpitchoftheviewingzoneswasmmThelenspitchofthelenticularlenswasmmNext,thedesignissueofthemultiprojectionsystemisdescribedThedisplayscreensizeandthepitchoftheviewingzonesareimportantparametersfordesigningthemultiprojectio

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