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首页> 外文期刊>IEEE Signal Processing Magazine >Creating a multiuser 3-D virtual environment
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Creating a multiuser 3-D virtual environment

机译：创建多用户3-D虚拟环境

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For many years online text chat software such as ICQ has been usednas a means of multiuser interaction. As higher bandwidth is available,nmultipoint videoconferencing systems such as NetMeeting or CUseeMe thatnallow people from different geographical locations to see and talk toneach other are becoming popular. However, these videoconferencingnsystems lack the sense of immersion because each participant sees othernparticipants in separate windows, and it is often difficult to tell whonis talking to whom. Based on user study, Argyle and Dean (1965)nsuggested that during face-to-face communication people vary physicalnproximity, eye contact, and other behaviors to optimize an overall levelnof intimacy. In addition, Tang and Isaacs (1993) found that gazenawareness is important because participants can use the visual cue tondetermine when another participant is paying attention to them. Thesenstudies suggest that a more immersive way of multiuser communication isnto connect the users in a three-dimensional (3-D) virtual environment sonthat users feel that they are communicating face to face. Moving from antext-based chat room environment to a 3-D environment creates newnchallenges in several areas such as computer animation, signalnprocessing, and computer vision. We introduce immersive interactiventechnologies used in multiuser 3-D virtual environments. We also surveynexisting systems
机译：多年以来，一直使用在线文本聊天软件（例如ICQ）作为多用户交互的手段。随着更高的带宽可用，诸如NetMeeting或CUseeMe之类的多点视频会议系统正变得越来越流行，该系统使来自不同地理位置的人们能够相互欣赏和交谈。但是，这些视频会议系统缺乏沉浸感，因为每个参与者在单独的窗口中看到其他参与者，并且通常很难分辨出whonis与谁交谈。根据用户研究，Argyle和Dean（1965）提出在面对面交流中，人们会改变身体的接近度，目光接触和其他行为，从而优化整体的亲密感。另外，Tang and Isaacs（1993）发现，警惕性很重要，因为当另一名参与者关注他们时，他们可以使用视觉提示来确定。这些研究表明，多用户通信的一种更加身临其境的方式不是将用户连接到三维（3-D）虚拟环境中，从而使用户感到自己正在面对面交流。从基于文本的聊天室环境过渡到3-D环境会在计算机动画，信号处理和计算机视觉等多个领域中引发新的挑战。我们介绍了在多用户3-D虚拟环境中使用的沉浸式交互式技术。我们还调查了nexisting系统

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