虚拟现实技术论文

云南师范大学旅游与地理科学学院虚拟现实技术论文（设计）题目虚拟现实技术学院旅游与地理科学学院专业测绘工程学号1443206000215班级14测绘工程姓名黄兴旺《虚拟现实技术》期中论文姓名：黄兴旺学号：14432060002152016-2017年第一学期-2-1.虚拟现实技术的概念与特征········································································································31.1虚拟现实的概念·················································································································31.1.1关于Virtual的释义·································································································31.1.2关于Reality的释义·································································································31.1.3我国对VirtualReality的翻译·················································································31.2虚拟现实技术的定义·········································································································41.2.1狭义虚拟现实技术的定义······················································································41.2.2广义虚拟现实技术的定义······················································································41.2.3有关虚拟现实技术的其他定义··············································································51.3虚拟现实的特征和类型·····································································································51.3.1虚拟现实技术的特征······························································································51.3.2虚拟现实技术的类型······························································································52.虚拟现实技术涉及的关键技术与问题························································································62.1虚拟现实技术的关键技术·································································································62.2虚拟现实技术的几个瓶颈问题·························································································73.虚拟现实技术的国内外研究现状································································································83.1国外虚拟现实技术研究现状·····························································································83.1.1美国··························································································································83.1.2欧洲··························································································································93.1.3亚洲··························································································································93.2国内虚拟现实技术的研究现状·······················································································104.虚拟现实技术的应用··················································································································124.1虚拟现实技术的应用领域·······························································································124.1.1军事领域················································································································124.1.2医学························································································································134.1.3教育························································································································144.1.4工程领域················································································································144.2虚拟现实技术的应用案例·······························································································155.虚拟现实技术的未来展望··········································································································186.总结·············································································································································19《虚拟现实技术》期中论文姓名：黄兴旺学号：14432060002152016-2017年第一学期3虚拟现实技术摘要虚拟现实(VirtualReality,VR)技术是近年来新兴的借助计算机及最新传感器技术创造的一种崭新的人机交互手段,其核心是建模与仿真。概括介绍了虚拟现实技术的概念、特征及原理,涉及的关键技术,研究状况,应用领域与前景展望.关键字虚拟现实技术,VR,研究现状,相关应用,信息安全1.虚拟现实技术的概念与特征1.1虚拟现实的概念1989年，美国VPA（VirtualProgrammingLanguage）公司的创作者之一Lanier首先提出“VirtualReality”这个称谓，引发了科学界对这一术语的关注和研究。1.1.1关于Virtual的释义首先从VR这个词上进行分析，VirtualReality（VR）中的Virtual是形容词，Reality是名词，Virtual是修饰Reality的。虽然不存在，但效果感觉存在；尽管事实并非如此，但就某些效果而言，也可以感觉是这样的。1.1.2关于Reality的释义VirtualReality中Reality为名词，Reality它更为复杂。很多书籍表明，Reality具有实质的状态或者性质，是真实的实际存在着，而不是仅具有表象的事物（或衍生物）。Reality表达的是世界上存在的一切事物。1.1.3我国对VirtualReality的翻译我过学者和翻译家对VirtualReality有很多种不同的认识，译名也有多种多样。有翻译为“虚真实”、“临境”、“灵境”、“电象”的，也有译为“虚拟真实”、“虚拟镜像”和“虚拟现实”的。随着对VirtualReality的认识不断加深入，以及VirtualReality研究的拓展和研究事业的转换，国内学者根据自己的理解对VirtualReality给予了不同的理解。《虚拟现实技术》期中论文姓名：黄兴旺学号：14432060002152016-2017年第一学期4有人认为世界的现象是现实，但不一定实在。“实在”在不同的条件和场合下将展开不同的现实，大至虚拟世界，虚拟城市，虚拟企业，虚拟图书馆等；小到虚拟分子，虚拟细胞等等。1.2虚拟现实技术的定义虚拟现实技术是仿真技术的一个重要方向是仿真技术与计算机图形学人机接口技术多媒体技术传感技术网络技术等多种技术的集合是一门富有挑战性的交叉技术前沿学科和研究领域。虚拟现实技术(VR)主要包括模拟环境、感知、自然技能和传感设备等方面。模拟环境是由计算机生成的、实时动态的三维立体逼真图像。感知是指理想的VR应该具有一切人所具有的感知。除计算机图形技术所生成的视觉感知外，还有听觉、触觉、力觉、运动等感知，甚至还包括嗅觉和味觉等，也称为多感知。自然技能是指人的头部转动，眼睛、手势、或其他人体行为动作，由计算机来处理与参与者的动作相适应的数据，并对用户的输入作出实时响应，并分别反馈到用户的五官。传感设备是指三维交互设备。1.2.1狭义虚拟现实技术的定义1990年在美国达拉斯召开的SIGGRAPH国际会议上，明确了VR的上要技术构成，即三维计算机图形生成技术、多功能传感式交互式接口技术及高分辨率的告诉显示技术。VR技术系统主要包括，（1）输入输出设备，如头盔式显示器、立体