虚拟骑行中的三种导航界面的体验度量

Experience Measurement of Three Navigation Interfaces in Virtual Riding

相关研究显示,大部分用户在虚拟现实中会遇到导航困难,而目前对导航方式的研究仍十分稀缺。为此,以沉浸式虚拟骑行为例,对不同导航界面(地图、提示图标、寻路光带)的用户体验进行了度量,包括效率、满意度、易学性等。试验对象在虚拟环境里沿着场景里的路径骑行到达终点,在此过程中记录被试的时间、碰撞数等,以此量化用户体验的各要素。实验结果表明:提示图标导航方式一定程度上能提高虚拟骑行的效率,但不够显著,更重要的是会显著降低用户对虚拟场景的感知度;用户使用寻路光带导航方式执行任务时,易用性和易学性方面有显著的提升;使用地图导航的体验与无导航时的体验相差不大。

Relevant researches indicate that most users meet difficulties in navigation in virtual reality.However,the current study on navigation is still insufficient.Aiming at this problem,a study on immersive virtual riding is conducted to measure the user experience of different navigational interfaces including the map,the directional icon and the light path.The evaluation indicators involve efficiency,satisfaction and learnability.Subjects will ride along the paths in virtual environment to reach the destination and the system will record the riding time and the number of collisions to quantify different elements of user experience.The experimental result shows as follows.Firstly,the directional icon can increase the efficiency of virtual riding to some,but not significant degree.However,the directional icon contributes to low perception of other objects in virtual environment.Secondly,when the users use light path to navigate,the usability and the learnability are significantly improved.Lastly,there is little difference between the experience of map navigation and the experience without any navigation.