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首页 虚拟现实技术的英文文献综述

虚拟现实技术的英文文献综述.doc

虚拟现实技术的英文文献综述

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2019-02-08 0人阅读 举报 0 0 暂无简介

简介:本文档为《虚拟现实技术的英文文献综述doc》,可适用于IT/计算机领域

VirtualRealityanditsprospectNomatteryouareavideogameplayer,amovieloveroranindustrialdesigner,youmusthavelearnedalotabouttheVR(virtualreality)ManymediareportsasthefirstyearofVRAtpresent,theSteamVRplatformhasbeenabletoexperiencethevirtualrealitygamethroughViveHTCGooglehasinvested$billioninthevirtualrealitycompanyMagicLeapItissaidthatAppleandFacebookalsoformedalargeteamcomposedofvirtualrealityandaugmentedrealityexpertstocompetewiththeothercompaniesinthisnew,hightechfieldEvenfamousdirectorSpielbergdeclaredthathewouldproduceafilmaboutfamilycooperatingwithVRCcompanyVR(virtualreality)technologycanbewidelyusedinurbanplanning,interiordesign,industrialsimulation,monumentsrestoration,roadandbridgedesign,realestatesales,tourism,education,waterconservancyandelectricpower,geologicaldisasters,educationandtrainingandmanyotherfields,toprovidefeasiblesolutionsAndthevideogameisthemost eagerly awaitedapplicationnowNotlongago,avideogamecompany,Valve,releasedapromotionalvideoofitsVR:SteamVRInthisfootage,playersareinvitedtowearVRequipmentandexperienceallkindsofgames,andotherpeoplecanseetheirexperiencein"anotherworld"inavarietyofeventsonthescreenEveryonenomatterplayerorviewersayit’sreallyawesomeSowhatisVRHowdoesitworkVirtualreality,multimediaandnetworktechnologyareknownasthethreecomputertechnologywithbestmajorprospectsThistechnologyistheuseofcomputersimulationtogenerateathreedimensionalvirtualworld,toprovideuserswithvisual,auditory,tactileandothersimulation,sothatuserscanbeinanimmersiveunlimitedobservationofthingswithinthreedimensionalspaceWhentheusermovestheposition,thecomputercarriesonthecomplexcomputation,maintainingthespotfeelingInaword,VRtechnologycanbringtheuser'sperceptionintothevirtualworlditcreates,andletusersbelievethatitistrueIngeneral,anormalVRequipmentconsistsofonehelmetwhichhaveamicroprocesserandaspecialopticsystemtoproduceparallaxandmakethestereoscopictheredimensionalpictures,twohandlesforoperatingandgettingsensationliketouchingandtwospeakerstoproducethethreedimensionalsoundsAnditalsoneedstoconnecttoacomputerwhichdealswiththeinformation,runsprogramandhelptheCPUandspecialopticsystemproducesceneIt’sreallyobviousthatthemostimportantthingforVRequipmentistomakethevirtualitylikerealityThefollowingareseveralkeytechnologiestoachievethatFirstistherealtimecomputerpicturesimulationInavirtualsimulationsystem,imagerefreshisveryimportantWhiletheimagequalityrequirementsareveryhigh,coupledwithaverycomplexvirtualenvironment,theproblembecomesquitedifficultSecondtheimagesaregeneratedrespectivelydifferentlyintheuser’stwoeyes,displayedondifferentmonitorsParallaxwillbringasenseofthreedimensionalthenThird,trackingWhenweplaycomputersthemouseandkeyboardrecordourtrack,butthehelmetandhandlesareinchargeofitLastistwoimportantstepsoftheuserfeedbackOneisinteractionInthesceneofVR,notonlytheplayerandplayer,playerandenvironmentbutenvironmentandenvironmentallhaveinteractionItmakestheworldmorerealAnotherismutisensationNotonlythesoundandthesightisthreedimensional,butyoucangettouchingevensmellingbythehandlesTheybothmakethescenemorerealHoweverVirtualrealityexperiencereferstostillexistmanydefectsnowSomeanalystspointedoutthattheVRtechnologyisnotyetmature,experiencestillexistsmanyblemishes,andequipmentcostsaretoohighItwilltaketimethatVRtechnologycomesintopublicviewfrom“nichetoys”Themainproblemsaresignificantdiscomfort,asenseofvertigowhenwearing,obvioushardwarecontentandsoonForinstance,therequirementsoftheVRequipmentimageisrelativelyhighThemovieisasecondandframes,butframesasecondofVRdeviceinordertoachievehighqualityThatwillgreatlyincreasethecomputationalburdenofthehardware,whichisdifficulttoachieveacomprehensiveintheindustryBesidesthehelmetandthehandlesarealittleheavyandthepriceisstillhighforordinarypeoplenowButthereisoneword,oneflawcannotobscurethesplendorofthejadeMostspecialistsandforecastersthinktheprospectofvirtualrealityisoptimisticbeyondadoubtForexample,theGIC(GovernmentofSingaporeInvestmentCorp)forecaststhatin,global VRequipment shipmentswillgrowandincreasetobillionfrominAnotherforecasterEnfodeskevenpredictsthatthevirtualrealityrevenuesinChinawillreachtomillionofChineseyuanalthoughtheincrementspeedinisslowerthanbeforeAlthoughVRtechnologyisnotmaturenowandstillhasmuchroomforimprovement,weshouldkeepconfidenceinitThereisagoodnewsthattheHTCVivebegantosaleafewdaysagoandmorethanonehundredthousandpeoplehavereserveditevenitcosts$AccordingtotheGoogleTrends,VRwillentertheeraoflargeoutbreakinthenearfutureSoIbelieveinthenotfarfuture,thevirtualrealitywillplaytheroleofthesmartphonenowandchangeourlife,oursocialandourplanetgreatly

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虚拟现实技术的英文文献综述

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