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A Comparative Usability Study of Bare Hand Three-Dimensional Object Selection Techniques in Virtual Environment
Symmetry ( IF 2.940 ) Pub Date : 2020-10-19 , DOI: 10.3390/sym12101723
Xiaozhou Zhou , Hao Qin , Weiye Xiao , Lesong Jia , Chengqi Xue

Object selection is the basis of natural user–computer interaction (NUI) in a virtual environment (VE). Among the three-dimensional object selection techniques employed in virtual reality (VR), bare hand-based finger clicking interaction and ray-casting are two convenient approaches with a high level of acceptance. This study involved 14 participants, constructed a virtual laboratory environment in VR, and compared the above two finger-based interaction techniques in terms of aspects of the task performance, including the success rate, total reaction time, operational deviation, and accuracy, at different spatial positions. The results indicated that the applicable distance range of finger clicking interaction and finger ray-casting was 0.2 to 1.4 m and over 0.4 m, respectively. Within the shared applicable distance, the finger clicking interaction achieved a shorter total reaction time and higher clicking accuracy. The performance of finger clicking interaction varied remarkably at the center and edge of the horizontal field of view, while no significant difference was found among ray-casting at various horizontal azimuths. The current findings could be directly applied to the application of bare-hand interaction in VR environments.

中文翻译:

虚拟环境中裸手三维对象选择技术的比较可用性研究

对象选择是虚拟环境 (VE) 中自然用户-计算机交互 (NUI) 的基础。在虚拟现实 (VR) 中采用的三维对象选择技术中,基于裸手的手指点击交互和光线投射是两种接受度较高的便捷方法。本研究涉及 14 名参与者,在 VR 中构建了一个虚拟实验室环境,并比较了上述两种基于手指的交互技术在任务性能方面,包括成功率、总反应时间、操作偏差和准确性,在不同的情况下。空间位置。结果表明,手指点击交互和手指光线投射的适用距离范围分别为0.2~1.4 m和0.4 m以上。在共享的适用距离内,手指点击交互实现了更短的总反应时间和更高的点击准确度。在水平视场的中心和边缘,手指点击交互的性能变化显着,而在不同水平方位的光线投射之间没有发现显着差异。目前的研究结果可以直接应用于 VR 环境中的裸手交互应用。
更新日期:2020-10-19
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