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arXiv 1908.02088cs.HCcs.GRcs.MM
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虚拟现实中的地图和地球仪

Maps and Globes in Virtual Reality

Yalong Yang, Bernhard Jenny, Tim Dwyer, Kim Marriott, Haohui Chen, Maxime Cordeil

摘要:

本文探讨了在虚拟现实(VR)中绘制世界地图的不同方法。我们比较:(a)3D离心球,其中用户的视点在球的外部;(b)平面地图(在VR中渲染到平面);(c)自我中心的3D球,其中视点在球的内部;以及(d)弯曲地图,通过将地图投影到围绕用户弯曲的球体的一部分上来创建。在所有四种可视化中,地理中心可以通过标准的手持VR控制器进行平滑调整,用户可以通过头戴式耳机在可视化中移动。在距离比较上,离心球比自我球和平面地图更精确。对于面积比较,使用离心球和自我中心球比使用平面和曲面地图需要更多的时间。对于方向估计,偏心地球比其他视觉呈现更准确和更快。我们的研究参与者对地心球的偏好较弱。一般来说,曲面地图要比平面地图有优势。在几乎所有的情况下,自我中心的地球被发现是最有效的可视化。总的来说,我们的研究结果提供了支持使用偏心地球在混合现实中的地理可视化。

英文摘要:

This paper explores different ways to render world-wide geographic maps in virtual reality (VR). We compare: (a) a 3D exocentric globe, where the user's viewpoint is outside the globe; (b) a flat map (rendered to a plane in VR); (c) an egocentric 3D globe, with the viewpoint inside the globe; and (d) a curved map, created by projecting the map onto a section of a sphere which curves around the user. In all four visualisations the geographic centre can be smoothly adjusted with a standard handheld VR controller and the user, through a head-tracked headset, can physically move around the visualisation. For distance comparison, exocentric globe is more accurate than egocentric globe and flat map. For area comparison, more time is required with exocentric and egocentric globes than with flat and curved maps. For direction estimation, the exocentric globe is more accurate and faster than the other visual presentations. Our study participants had a weak preference for the exocentric globe. Generally, the curved map had benefits over the flat map. In almost all cases the egocentric globe was found to be the least effective visualisation. Overall, our results provide support for the use of exocentric globes for geographic visualisation in mixed-reality.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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