AR-Arm: Augmented Visualization for Guiding Arm Movement in the First-Person Perspective
AR-Arm: Augmented Visualization for Guiding Arm Movement in the First-Person Perspective
复制标题
AR-Arm：以第一人称视角引导手臂运动的增强可视化
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Y. Hung
中科院分区：
文献类型：
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作者：
Ping;Kuan;Chen;Yu;Y. Hung
在许多活动中，如武术、体育锻炼和理疗，用户被要求以高度精确的手臂位置执行一系列身体动作。有时，这些动作太复杂了，用户无法学习，即使直接模仿教练的动作也是如此。提出了一种完全沉浸式增强现实(AR)系统，该系统通过视频透视式头盔显示器(HMD)提供以自我为中心的提示来指导用户的手臂运动。通过使用该系统，用户只需在第一人称视图中移动手臂，就可以跟踪和匹配教练数据库中呈现的虚拟手臂，从而实现手臂的精确运动。为了确保渲染的虚拟手臂与用户的真实肩膀正确对齐，提出了一种预先估计用户手臂长度和头肩位置的校准方法。此外，我们将该系统应用到太极拳练习中，初步研究表明，所提出的自我中心提示可以为用户提供直观的指导，使用户能够准确地跟踪教练的手臂动作。
In many activities, such as martial arts, physical exercise, and physiotherapy, the users are asked to perform a sequence of body movements with highly accurate arm positions. Sometimes, the movements are too complicated for users to learn, even by imitating the action of the coach directly. This paper presents a fully immersive augmented reality (AR) system, which provides egocentric hints to guide the arm movement of the user via a video see-through head-mounted display (HMD). By using this system, the user can perform the exactitude of arm movement simply by moving his arms to follow and match the virtual arms, rendered from coach's movement of database, in the first-person view. To ensure the rendered virtual arms correctly aligned with the user's real shoulders, a calibration method is proposed to estimate the length of the user's arms and the positions of his head and shoulders in advance. In addition, we apply the system to Tai-Chi-Chuan practicing, our preliminary study has shown that the proposed egocentric hints can provide intuitive guidance for users to follow the arm movement of the coach with exactitude.