Tao Da, Diao Xiaofeng, Wang Tieyan, Guo Jingya, Qu Xingda
Institute of Human Factors and Ergonomics, College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, China.
Technology Management Committee, Xiamen Meiya Pico Information Co.,Ltd, Xiamen, China.
Appl Ergon. 2021 May;93:103370. doi: 10.1016/j.apergo.2021.103370. Epub 2021 Jan 23.
The past decade has seen increasing popularity of large display-based freehand interaction. This study examined the effects of body posture, interaction distance and target size on freehand interaction with a large display. Participants performed pointing and dragging tasks by freehand interaction with a large display under sitting and standing postures and at different interaction distances. Targets in both small and large sizes were examined. Results showed that interaction distance yielded a significant effect on error rate, but the effect differed by task type. Little measurable difference was found in interaction performance, perceived usability and workload between sitting and standing postures. There were significant interaction effects between posture and interaction distance on perceived workload. Larger target size led to higher efficiency and accuracy in pointing tasks, but reduced accuracy in dragging tasks. This study provided implications that are likely to improve the design and deployment of large display-based freehand interaction techniques.
在过去十年中，基于大型显示屏的徒手交互越来越受欢迎。本研究考察了身体姿势、交互距离和目标大小对与大型显示屏进行徒手交互的影响。参与者在坐着和站着的姿势下，以及在不同的交互距离下，通过与大型显示屏进行徒手交互来执行指向和拖动任务。研究了大小不同的目标。结果表明，交互距离对错误率有显著影响，但该影响因任务类型而异。在坐着和站着的姿势之间，交互性能、感知可用性和工作量方面几乎没有可测量的差异。姿势和交互距离对感知工作量有显著的交互作用。较大的目标大小在指向任务中导致更高的效率和准确性，但在拖动任务中降低了准确性。本研究为改进基于大型显示屏的徒手交互技术的设计和部署提供了启示。
