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首页> 外文期刊>The Journal of Systems and Software >Setting the best view of a virtual teacher in a mixed reality physical-task learning support system
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Setting the best view of a virtual teacher in a mixed reality physical-task learning support system

机译：在混合现实的物理任务学习支持系统中设置虚拟老师的最佳视图

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摘要

In this research, we investigated the virtual teacher's positions and orientations that led to optimal learning outcome in mixed-reality environment First, this study showed that the virtual teacher's position and orientation have an effect on learning efficiency, when some teacher-settings are more comfortable and easy to watch than others. A sequence of physical-task learning experiments have been conducted using mixed-reality technology. The result suggested that the virtual-teacher's close side-view is the optimal view for learning physical-tasks that include significant one-hand movements. However, when both hands are used, or rotates around, a rotation-angle adjustment becomes necessary. Therefore, we proposed a software automatic-adjustment method governing the virtual teacher's horizontal rotation angle, so that the learner can easily observe important body motions. The proposed software method was revealed to be effective for motions that gradually reposition the most important moving part. Finally, to enhance the proposed method in the future, we conducted an experiment to find out the effect of setting the vertical view-angle. The result recommended that the more motion's rotation involved the more vertical view angles are wanted to see the whole motion clear.
机译：在这项研究中，我们调查了在混合现实环境中导致最佳学习结果的虚拟教师的位置和方向。首先，该研究表明，当某些教师设置更舒适时，虚拟教师的位置和方向会影响学习效率。而且比其他人容易观看。已经使用混合现实技术进行了一系列的物理任务学习实验。结果表明，虚拟教师的近距离侧视图是学习物理任务（包括大量单手动作）的最佳视图。然而，当双手被使用或旋转时，旋转角度调节是必要的。因此，我们提出了一种控制虚拟教师水平旋转角度的软件自动调整方法，使学习者可以轻松观察重要的身体动作。事实证明，所提出的软件方法对于逐渐重新定位最重要的运动部​​件的运动是有效的。最后，为了改进将来提出的方法，我们进行了一项实验，以了解设置垂直视角的效果。结果建议，要使整个运动清晰可见，就需要更多的运动旋转，从而获得更多的垂直视角。

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