ITR/SY: Collaborative/RUI Research on the Perceptual Aspects of Locomotion Interfaces

ITR/SY：关于运动界面感知方面的协作/RUI 研究

• 批准号: 0121084
• 负责人: William Thompson
• 金额: --
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-15 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0121084&HistoricalAwards=false
• 关键词: ITR; SY; Collaborative; RUI; Research

No current system allows a person to naturally walk through a large-scale virtual environment. The availability of such a locomotion interface would have impacts on a broad range of applications, including education and training, design and prototyping, physical fitness, and rehabilitation; for some of these applications natural walking provides a level of realism not obtainable if movement through the simulated world is controlled by devices such as a joystick, while for others realistic walking is a fundamental requirement. Prototypes have been built for a variety of computer-controlled devices on which a person can walk, but there has been little investigation of the utility of such devices as interfaces to a virtual world and almost no study at all of the interactions of visual and biomechanical perceptual cues in such devices. This project addresses key open questions, the answers to which are needed if locomotion interfaces are to offer effective interaction between users and computer simulations. An effective locomotion interface must provide users with accurate visual and biomechanical sensations of walking; thus, a key objective of this work is to determine how to synergistically combine visual information generated by computer graphics with biomechanical information generated by devices that simulate walking on real surfaces. The PI and his collaborators will investigates methods that allow more accurate walking in a locomotion interface while accurately conveying a sense of the spaces being walked through. Specific issues to be considered include how to facilitate the perception of speed and distance traveled, how to provide a compelling sense of turning when actual walking along a curved path is not possible, how to give a user the sense that he/she is walking over a sloped surface, and more generally how to give a user a clear sense of the scale and structure of the spaces being walked through. The PI's findings on these issues will be relevant across the spectrum of possible approaches to locomotion interfaces.

当前的系统没有允许一个人自然地穿越大型虚拟环境。 这种运动界面的可用性将对广泛的应用产生影响，包括教育和培训，设计和原型，身体健康和康复； 对于这些应用中的某些应用，自然步行会提供一定的现实主义，如果通过模拟世界的移动由操纵杆等设备控制，而对于其他设备而言，而现实的步行是基本的要求。原型是为一个人可以行走的各种计算机控制的设备而建造的，但是很少研究诸如与虚拟世界的接口之类的设备的实用性，几乎没有研究在此设备中视觉和生物力学知觉线索的所有相互作用。 该项目解决了关键的开放问题，如果运动接口要在用户和计算机模拟之间提供有效的互动，则需要的答案。 有效的运动界面必须为用户提供准确的视觉和生物力学感觉。 因此，这项工作的一个关键目的是确定如何协同结合计算机图形生成的视觉信息与模拟在真实表面上行走的设备生成的生物力学信息。 PI和他的合作者将调查方法，这些方法可以使更准确的运动界面行走，同时准确地传达了要经过的空间的感觉。 要考虑的具体问题包括如何促进速度和距离的感知，当不可能沿着弯曲的路径行走时，如何提供令人信服的转弯感，如何使用户有一种感觉，即他/她在倾斜的表面上行走，以及更普遍地使用户对空间的清晰尺度和结构的范围，从而使用户走过。 PI在这些问题上的发现将在运动接口的可能方法中相关。