The use of self-avatars in a VR application can enhance presence and embodiment which leads to a better user experience. In collaborative VR it also facilitates non-verbal communication. Currently it is possible to track a few body parts with cheap trackers and then apply IK methods to animate a character. However, the correspondence between trackers and avatar joints is typically fixed ad-hoc, which is enough to animate the avatar, but causes noticeable mismatches between the user's body pose and the avatar. In this paper we present a fast and easy to set up system to compute exact offset values, unique for each user, which leads to improvements in avatar movement. Our user study shows that the Sense of Embodiment increased significantly when using exact offsets as opposed to fixed ones. We also allowed the users to see a semitransparent avatar overlaid with their real body to objectively evaluate the quality of the avatar movement with our technique.
翻译:在 VR 应用程序中使用自我变异器可以加强存在和化化,从而导致更好的用户经验。 在合作变异器中,它也可以促进非语言通信。 目前,可以用廉价跟踪器跟踪几处身体部件,然后应用 IK 方法来动画字符。 然而, 跟踪器和 avatar 连接之间的通信一般都是固定的 ad-hoc, 这足以给变异器动动静, 但会造成用户身体和变异器之间的明显不匹配。 在本文中, 我们提出了一个快速和容易设置的系统来计算准确的抵消值, 每一个用户都独一无二, 从而导致对变异器运动的改进。 我们的用户研究表明, 当使用精确抵消而不是固定的抵消时, Embodiment 的感知度会大幅增加。 我们还允许用户看到一个半透明的变异器与真实身体的粘合在一起, 以便用我们的技术客观地评估变异器运动的质量。