6版 Project 21 課文及翻譯

電子與通信技術(shù)專業(yè)英語電子信息工程學(xué)院Project21VirtualReality(VR)andAugmentedReality(AR)VirtualReality(VR)andAugmentedReality(AR)VirtualReality(VR),theuseofcomputermodelingandsimulationthatenablesapersontointeractwithanartificialthree-dimensional(3-D)visualorothersensoryenvironment.VRapplicationsimmersetheuserinacomputer-generatedenvironmentthatsimulatesrealitythroughtheuseofinteractivedevices,whichsendandreceiveinformationandarewornasgoggles,headsets,gloves,orbodysuits.InatypicalVRformat,auserwearingahelmetwithastereoscopicscreenviewsanimatedimagesofasimulatedenvironment.Theillusionof“beingthere”(telepresence)iseffectedbymotionsensorsthatpickuptheuser'smovementsandadjusttheviewonthescreenaccordingly,usuallyinrealtime(theinstanttheuser'smovementtakesplace).Thus,ausercantourasimulatedsuiteofrooms,experiencingchangingviewpointsandperspectivesthatareconvincinglyrelatedtohisownheadturningsandsteps.Wearingdataglovesequippedwithforce-feedbackdevicesthatprovidethesensationoftouch,theusercanevenpickupandmanipulateobjectsthatheseesinthevirtualenvironment.虛擬現(xiàn)實(shí)和增強(qiáng)現(xiàn)實(shí)虛擬現(xiàn)實(shí)（VR）是使用計(jì)算機(jī)建模和仿真，使人們能夠與人造的三維（3-D）視覺或其他感官環(huán)境進(jìn)行交互的技術(shù)。VR應(yīng)用程序使用戶沉浸在計(jì)算機(jī)生成的環(huán)境中,該環(huán)境通過使用交互式設(shè)備來模擬現(xiàn)實(shí),這些設(shè)備發(fā)送和接收信息、并作為護(hù)目鏡、頭戴式耳機(jī)、手套或緊身衣褲佩戴。在典型的VR使用中，用戶佩戴帶有立體屏幕的頭盔觀看模擬環(huán)境的動(dòng)畫圖像?！吧砼R其境”(遠(yuǎn)程呈現(xiàn))的錯(cuò)覺是由運(yùn)動(dòng)傳感器實(shí)現(xiàn)的,運(yùn)動(dòng)傳感器通常會(huì)實(shí)時(shí)(用戶移動(dòng)發(fā)生的瞬間）接收到用戶的運(yùn)動(dòng)，并相應(yīng)地調(diào)整屏幕上的視圖。因此，用戶可以參觀一套模擬房間，體驗(yàn)與自己的頭部轉(zhuǎn)向和腳步有關(guān)的視角和視野的不斷變化。戴上配備有提供觸覺的力反饋設(shè)備的數(shù)據(jù)手套，用戶甚至可以拿起并操縱他在虛擬環(huán)境中看到的物體。

Forbothgamesandapps,virtualrealitycompletelysupersedesyoursurroundings,takingyoutootherplaces.Whereyouarephysicallydoesn'tmatter.Ingames,youmightsitinthecockpitofastarfighter.Inapps,youmightvirtuallytourdistantlocationsasifyouwerethere.Therearetonsofpossibilitiesinvirtualreality,andtheyallinvolvereplacingeverythingaroundyouwithsomethingelse.對(duì)于游戲和應(yīng)用程序,虛擬現(xiàn)實(shí)完全取代了周圍環(huán)境,將你帶到了其他地方。身體的位置無關(guān)緊要。在游戲中，你可能坐在星際戰(zhàn)斗機(jī)的座艙中。在應(yīng)用程序中。你可以虛擬地游覽遙遠(yuǎn)的地方，就好像你在那里一樣。虛擬現(xiàn)實(shí)中有無數(shù)種可能性，并且它們都涉及用其他東西代替你周圍的一切。

Whereasvirtualrealityreplacesyourvision,augmentedrealityaddstoit.ARdevicesliketheMicrosoftHoloLensandvariousenterprise-level“smartglasses"aretransparent，lettingyouseeeverythinginfrontofyouasifyouarewearingaweakpairofsunglasses.Thetechnologyisdesignedforcompletelyfreemovementwhileprojectingimagesoverwhateveryoulookat.TheconceptextendstosmartphoneswithARappsandgameslikePokemonGo,whichuseyourphone'scameratotrackyoursurroundingsandoverlayadditionalinformationontopofit,onthescreen.盡管虛擬現(xiàn)實(shí)代替了視覺，但增強(qiáng)現(xiàn)實(shí)卻疊加了視覺。像MicrosoftHoloLens和各種企業(yè)級(jí)“智能眼鏡”的AR設(shè)備都是透明的，你可以看到自己面前的一切，就像戴著一副弱太陽鏡一樣。該技術(shù)專為完全自由移動(dòng)而設(shè)計(jì)，同時(shí)將圖像投影到你所看到的任何物體上。該概念擴(kuò)展到具有AR應(yīng)用程序和游戲的智能手機(jī),例如PokemonGo，這些應(yīng)用程序使用手機(jī)的攝像頭來跟蹤你間圍的環(huán)境,并在屏幕上疊加其他信息。

Forgames,augmentedrealitycanbuildexperiencesusingyoursurroundings.ThedetectivegameFragmentsscansyourroomandcreatescrimescenesbasedonitslayout，placingvarioussetpiecesaroundandproducingaslightlydifferentexperiencewitheachroom.RoboRaiddetectswherethewallsareandprojectshologramsofroboticarmsbreakingthroughthemandrobotspouringout.YoungConkerplacesobstaclesalloveryourfurniture,assemblingitslevelsfromyoursurroundings.Inallofthesecases,thegameschangetofitthespace.對(duì)于游戲，增強(qiáng)現(xiàn)實(shí)可以利用你的周圍環(huán)境來構(gòu)建體驗(yàn)。偵探游戲Fragments會(huì)掃描你的房間并根據(jù)其布局創(chuàng)建犯罪現(xiàn)場(chǎng),將各種布景擺放在周圍，并且每個(gè)房間的體驗(yàn)都略有不同。RoboRaid檢測(cè)墻壁的位置，并投射出機(jī)械臂突破墻壁和機(jī)器人傾巢而出的全息圖。YoungConker在你的家具上放置了障礙物，將其與周圍的環(huán)境組合在一起。在所有這些情況下，游戲都會(huì)變化以適應(yīng)空間。Forapps,augmentedrealityhasnearlylimitlesspossibilities.Phone-basedARsoftwarehasbeenrecognizingsurroundingsandprovidingadditionalinformationaboutwhatitseesforyearsnow,offeringlivetranslationoftextorpop-upreviewsofrestaurantsasyoulookatthem.DedicatedARheadsetsliketheHoloLenscandoevenmore,lettingyouvirtuallyplacedifferentappsasfloatingwindowsaroundyou,effectivelygivingyouaninstantlymodularmulti-monitorcomputingsetup.對(duì)于應(yīng)用程序而言,增強(qiáng)現(xiàn)實(shí)幾乎具有無限的可能性?；陔娫挼腁R軟件多年來一直在識(shí)別周圍環(huán)境,并提供有關(guān)所見事物的更多信息，以及實(shí)時(shí)文本翻譯或在你查看餐廳時(shí)彈出評(píng)論。像HoloLens這樣的專用AR耳機(jī)甚至可以做更多的事情,讓你虛擬地將不同的應(yīng)用程序作為浮動(dòng)窗口放置在周圍，從面有效地為你提供即時(shí)的、模塊化的、多元監(jiān)測(cè)的計(jì)算體系。Virtualrealityandaugmentedrealityaccomplishtwoverydifferentthingsintwoverydifferentways(asshowninFig.21-1),despitethesimilardesignsofthedevicesthemselves.VRreplacesreality,takingyousomewhereelse.ARaddstoreality.projectinginformationontopofwhatyou'realreadyseeing.They'rebothpowerfultechnologiesthathaveyettomaketheirmarkwithconsumers,butshowalot