雨课堂学堂在线学堂云《Principle and Practice of Virtual Reality( 中传)》单元测试考核答案

注：不含主观题第1题单选题(1分)Sensingdevicesarealsoknownas();trackingdevicesarealsoknownas().Ainputdevices；outputdevicesBoutputdevices；inputdevicesCsomatosensorydevices；interactiondevicesDinteractiondevices；somatosensorydevices第2题单选题(1分)The3Icharacteristicsofvirtualrealityreferto:()Amulti-perception，interaction，immersionBfidelity,interaction，comfortCimmersion，interaction，imaginationDexperienceindex，interactionindex,realisticindex第3题单选题(1分)WhatarethepartsoftheconceptualarchitectureofVRdiscussedinthiscourse?Ahardwareplatform,softwaresystem,virtualrealitycontentBVRhelmet,VRglove,virtualrealitycontentCpeople,virtualenvironment,human-machineinterfaceforVR(includingsensingdevicesandtrackingdevices)Dsoftwaresystem,outputdevices,inputdevices第4题判断题(1分)VRhelmetsareprimarilyusedtogiveathree-dimensionalimmersiveexperience,sotheyareimportantVRsensingdevices,ratherthantrackingdevices.第5题判断题(1分)Themaindifferencebetweenvirtualrealityand3Dlandscapeanimationisthat3Dlandscapeanimationispre-renderedandhasnointeractivity.Chapter2--Testing第1题单选题(1分)Thethreekeytechnologiesintheconstructionof3Dvirtualscenesare:()Acurvemodeling;polygonmodeling;processmodelingBmodeling;rendering;animationCLODtechnology;Billboardtechnology;ExtinctiontechnologyDsimpleshapemodeling;complexobjectmodeling;Booleanoperation第2题单选题(1分)Whichofthefollowingfouroptionscontainssoftwaresthatareallvirtualrealityengines/gameengines?A3dsMax，Maya，SketchUpBPhotoshop,Illustrator，CoreDrawCOSG；Unity；VegaDVisualStudio，AutoCAD，ArcGis第3题判断题(1分)VRMLisalanguageformatproposedinthemid-1990sforbuilding3Dvirtualspacesthatcanrunonthebrowserside,butithasbeenrarelyusedinrecentyears.WebGLcanbeusedasanalternativesolutionforbuildingvirtualspacesontheWeb.Chapter3--Testing第1题单选题(1分)ThetechnicalprocessofIBMR(e.g.panorama)canbeexpressedasthefollowingthreesteps:()Asetupcameraandtripodhead;takepictures;splicingBmodeling;rendering;animationCcameracorrection;photosplicing;photoblendingDdiscreteviewpointsampling;scenemodelingbasedonsampledimages;resamplingatarbitraryviewpoints.第2题判断题(1分)Comparedtoimage-basedsceneconstructionmethod,the3Dgeometricmodel-basedmethodhas

thetwoadvantages:highauthenticityandgreateruser-friendliness.第3题判断题(1分)Image-basedsceneconstructionand3Dgeometricmodel-basedsceneconstructionaretwototallydifferentwaysofsceneconstructionandarenottechnicallyrelated.第4题判断题(1分)ThepanoramaishighlysuitedfordisplayinginVRhelmets.第5题判断题(1分)Technologiessuchasenvironmentmappingandskyballarecloselyrelatedtopanoramatechnology.Chapter4--Testing第1题单选题(1分)WhatdoesHMDstandfor?AHeavymountdisplay；BHelmet-movingdisplayCHead-mounteddisplayDHeadMovingdisplay第2题判断题(1分)AVRhelmetisonlyavirtualrealityvisualperceptiondevice.第3题判断题(1分)Iftheleftandrighteyesaregiven

differentimages,theeffectofstereocopicvisioncanbeproduced.第4题判断题(1分)Oculus,HTCViveandotherVRhelmetsareacompleteVRsysteminitself;butGoogleCardboardandothersmartphonebox-typeVRglassesareonlyavisualperceptiondevice,whichcannotconstitutesacompleteVRsystem.第5题判断题(1分)ThemostcriticaldifferencebetweenstereoscopicglassesandVRhelmetsisthatstereoscopicglassesarethinner,lighterandlessexpensive.第6题判断题(1分)Holographictechnologyistheperfectinterpretationofnakedeye3Dtechnology.Thetechnologyhasmaturedandmanyholographicdisplaydeviceshaveappearedonthemarket.5Basicgraphicstechnology-testing第1题单选题(1分)Whatisthemostcommonlyused3Dmodelrepresentationmethod?APointcloud,alsoknownaspointbasedmodelingBVolumedataCVolumegrid(representingthemodelasacollectionoftetrahedra)DRepresentingthemodelasacollectionofpolygonpatches,alsoknownasboundaryrepresentation第2题单选题(5分)Inwhichgraphicslibrarywasthecurrentgraphicspipelineoriginallyproposed?ADirect3DBDirectXCVRMLDOpenGL第3题单选题(1分)Thenamesofthethreemostbasiclightcomponentsinthelightingmodelare:()ARedlight,Greenlight,BluelightBDiffuselight,Transmittedlight,RefractedlightCDirectlight,Indirectlight,AmbientlightDDiffusereflection,Specularreflection,Ambientlight第4题判断题(1分)In1994,graphicscardswereusedinPCs,andatthattimethegraphicspipelinewasfullytransferredtothegraphicscardforimplementation.第5题判断题(1分)ThePhonglightingmodelcannoteffectivelysimulateindirectlightingeffects.第6题判断题(1分)Materialtexturescanonlybeusedtorecordcolororbumpinformationon