Using Multi-Level Precueing to Improve Performance in Path-Following Tasks in Virtual Reality
Using Multi-Level Precueing to Improve Performance in Path-Following Tasks in Virtual Reality
复制标题
使用多级预提示提高虚拟现实中路径跟踪任务的性能
DOI：
10.1109/tvcg.2021.3106476
复制
发表时间：
2021
影响因子：
5.2
通讯作者：
Feiner, Steven
中科院分区：
文献类型：
--
作者：
Liu, Jen-Shuo;Elvezio, Carmine;Tversky, Barbara;Feiner, Steven
VR和AR任务交互和可视化范式的工作通常集中在提供有关当前步骤（提示）的信息，这些信息是在执行之前或执行期间提供的。一些研究也表明，同时提供有关下一步的信息（precue）也有好处。我们探讨是否有可能通过在完成当前步骤之前预处理有关多个即将到来的步骤的信息来提高效率。为了实现这一目标，我们开发了一个远程VR用户研究，比较任务完成时间和主观指标的不同水平和风格的precueing在路径跟踪任务。我们的可视化改变了预处理级别（预先预处理的步骤数量）和风格（是否通过一条线传递到目标的路径，以及是否通过目标处的图形传递目标的位置）。在我们的研究中，参与者在给出两到三个使用线条来显示通往目标的路径的可视化过程时表现最好。然而，性能下降时，使用四个precues。另一方面，参与者表现最好，只有一个precue的可视化没有线，只显示目标的地方，和性能下降时，第二个precue。此外，参与者使用线条的可视化比没有线条的可视化表现得更好。
Work on VR and AR task interaction and visualization paradigms has typically focused on providing information about the current step (a cue) immediately before or during its performance. Some research has also shown benefits to simultaneously providing information about the next step (a precue). We explore whether it would be possible to improve efficiency by precueing information about multiple upcoming steps before completing the current step. To accomplish this, we developed a remote VR user study comparing task completion time and subjective metrics for different levels and styles of precueing in a path-following task. Our visualizations vary the precueing level (number of steps precued in advance) and style (whether the path to a target is communicated through a line to the target, and whether the place of a target is communicated through graphics at the target). Participants in our study performed best when given two to three precues for visualizations using lines to show the path to targets. However, performance degraded when four precues were used. On the other hand, participants performed best with only one precue for visualizations without lines, showing only the places of targets, and performance degraded when a second precue was given. In addition, participants performed better using visualizations with lines than ones without lines.