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• 专论：第18届中国虚拟现实大会暨第8届国际虚拟现实与可视化会议(ChinaVR & ICVRV 2018 青岛 ) • 上一篇    下一篇

头部旋转重定向的交互效率和眩晕感研究

  

  1. 1. 中国科学院遥感与数字地球研究所，北京 100101；  
    2. 中国科学院大学，北京 100049； 
    3. 中国科学院空间应用工程与技术中心太空应用重点实验室，北京 100094；
    4. 中国科学院地理科学与资源研究所，北京 100101； 
    5. 中国科学院生物物理研究所，北京 100101； 
    6. 北京航空航天大学虚拟现实技术与系统国家重点实验室，北京 100083
  • 出版日期:2019-06-30 发布日期:2019-08-02
  • 基金资助:
    国家重点研发计划项目(2017YFB1002803)；国家自然科学基金项目(61572055)

Research on the Interaction Efficiency and Vertigo Sensation of Head Rotation

  1. 1. Institute of Remote Sensing and Digital Earch, Chinese Academy of Sciences, Beijing 100101, China;  
    2. University of Chinese Academy of Sciences, Beijing 100049, China; 
    3. Key Laboratory of Space Utilization, Technology and Engineering Center for Space Utilization, Chinese, Academy of Sciences, Beijing 100094, China; 
    4. Institute of Genographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100101, China; 5. Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, Chian; 
    6. State Key Laboratory of Virtual Reality Technology and System, Beihang University, Beijing 100083, China
  • Online:2019-06-30 Published:2019-08-02

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摘要： 如何通过重定向方法实现 360°观察，同时保证用户的较高的舒适度和较低的眩晕 感，是虚拟现实研究的一个重要话题。对放大与引导头部旋转算法的交互效率和眩晕感进行定 量研究，使用户坐姿下，通过头戴显示器(Pico neo 基础版)旋转一个舒适的角度以观看 360°虚 拟范围，并在虚拟旅行中引导头部旋转使头部回到自然前向。设计了 2 种放大头部旋转算法， 并与 2 种现有方式进行对比实验，提出了一种对于引导头部旋转中感兴趣区的自动检测算法， 动态计算虚拟对象的角度阈值区实现感兴趣区的选取，在此基础上设计了一种基于正弦的引导 旋转算法。通过用户实验，得到各个算法的实验比对结果，实现在较为复杂的虚拟环境中引导 头部旋转重定向。

关键词: 放大头部旋转, 引导头部旋转, 角度阈值区, 感兴趣区

Abstract: How to achieve 360-degree observation through the redirection method, and at the same time ensure the user’s higher comfort level and lower sense of vertigo, is an important topic in VR research. In this paper, the interaction efficiency and vertigo perception of the amplifying and guiding head rotation algorithm are studied quantitatively: the users sitting in a couch without movement and rotating to a comfortable angle when wearing a head-mounted display (Pico neo Basic Edition) to view a 360-degree virtual range. Two amplified head rotation algorithms are designed and compared with two existing methods. At the same time, an automatic detection algorithm for guiding the area of interest in head rotation is designed, and the algorithm can dynamically calculate the angle threshold  of the virtual object and select the area of interest in real-time. Based on this, a sine-based guided rotation algorithm is designed.  Through a great deal of experiments, much important information about the experimental comparison results of each algorithm is obtained. Finally, the problem of how to redirect the head rotation in a relatively complicated virtual environment is solved.

Key words: amplified head rotation, guided head rotation, threshold of angle, area of interest