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1、Cyberspace Virtual Reality謝猛20116978What is Virtual Reality?虛擬現(xiàn)實(shí)虛擬現(xiàn)實(shí), ,就是說本來沒有的事物就是說本來沒有的事物和環(huán)境和環(huán)境, ,通過各種電腦技術(shù)虛擬出通過各種電腦技術(shù)虛擬出來來, ,讓人感覺到就如真實(shí)的一樣。讓人感覺到就如真實(shí)的一樣。The use of computers to make situations feel and look real. vVirtual reality (VR), sometimes referred to as immersive multimedia, is a computer-sim

2、ulated environment that can simulate physical presence in places in the real world or imagined worlds. Most current virtual reality environments are primarily visual experiences, displayed either on a computer screen or through special stereoscopic displays, but some simulations include additional s

3、ensory information, such as sound through speakers or headphones. Some advanced, haptic systems now include tactile information, generally known as force feedback in medical, gaming and military applications. From Wikipedia虛擬現(xiàn)實(shí)技術(shù)虛擬現(xiàn)實(shí)技術(shù)就是人們利用就是人們利用計(jì)算機(jī)計(jì)算機(jī)生成一個(gè)逼真的生成一個(gè)逼真的三維三維虛擬虛擬環(huán)境,通過自然技能使用傳感設(shè)備與之相互作用的新技術(shù)

4、。環(huán)境,通過自然技能使用傳感設(shè)備與之相互作用的新技術(shù)。它將它將模擬環(huán)境模擬環(huán)境、視景系統(tǒng)視景系統(tǒng)和和仿真系統(tǒng)仿真系統(tǒng)合三為一,并利用合三為一,并利用頭盔頭盔顯示器、圖形顯示器、圖形眼鏡眼鏡、數(shù)據(jù)、數(shù)據(jù)服服、立體聲耳機(jī)、數(shù)據(jù)、立體聲耳機(jī)、數(shù)據(jù)手套手套及及腳踏腳踏板板等等傳感裝置傳感裝置, , 把操作者與計(jì)算機(jī)生成的三維虛擬環(huán)境連結(jié)把操作者與計(jì)算機(jī)生成的三維虛擬環(huán)境連結(jié)在一起。操作者通過傳感器裝置與虛擬環(huán)境交互作用,可獲在一起。操作者通過傳感器裝置與虛擬環(huán)境交互作用,可獲得視覺、聽覺、觸覺等多種感知,并按照自己的意愿去改變得視覺、聽覺、觸覺等多種感知,并按照自己的意愿去改變“不隨心不隨心”的虛擬環(huán)

5、境。如虛擬博物館是用計(jì)算機(jī)虛擬技術(shù)的虛擬環(huán)境。如虛擬博物館是用計(jì)算機(jī)虛擬技術(shù)重現(xiàn)展示古代或現(xiàn)代物品及當(dāng)時(shí)的真實(shí)場景。整個(gè)場景以三重現(xiàn)展示古代或現(xiàn)代物品及當(dāng)時(shí)的真實(shí)場景。整個(gè)場景以三維和交互式探索形式重現(xiàn)。由于虛擬物展品和場景全部存在維和交互式探索形式重現(xiàn)。由于虛擬物展品和場景全部存在于計(jì)算機(jī)中,物體的于計(jì)算機(jī)中,物體的3D3D模型可以無限期展示,沒有被毀壞、模型可以無限期展示,沒有被毀壞、被偷竊的危險(xiǎn)。被偷竊的危險(xiǎn)。 What do you know about virtual reality technology?Special glasses, gloves and suitsequipp

6、ed with sensors The use of computers with sounds and pictures that makes you feel as if you were in a real situation.virtual realityWhich of these uses for virtual reality are possible now?virtual reality holidays learning to fly using virtual reality technology virtual reality computer games visiti

7、ng virtual museums on the Internet.Playing virtual reality computer gamesPossible uses for virtual reality now Playing virtual reality computer gamesLearning to fly using virtual reality technologyLearning to drive using virtual reality technologyLearning to drive using virtual reality technologyVis

8、iting virtual museums on the InternetVirtual reality in films Matrix (黑客帝國)Virtual reality in MatrixVirtual reality in Matrixv Avatar(阿凡達(dá))Virtual reality in the film AvatarVirtual reality in medicinevVirtual reality programs have also been used for a variety of medical emergency, mass casualty, and

9、disaster response training sessions for medical and public health professionals.VR in military&SpaceflightvOne of the first areas where virtual reality found practical application is in military training and operations.Virtual reality in military spaceAdvantages & DisadvantagesvVirtual reality also has several limitations. Virtual realities require a considerable amount of time to produce. For example it can take up to a year for programmers to make a virtual room using a real room as a blueprint vA second limitation of

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