虚拟现实场景中提取2D导航地图的方法研究

Research on Getting 2D Navigational Maps of the VR Scene

虚拟现实技术向我们展示多姿多彩的景象,并且成为人机交互的趋势。由于Internet的普及,许多虚拟场景可以从网上直接免费获取;但是,在利用这些共享资源搭建自己的虚拟世界过程有这样一个问题:如何得到虚拟场景所对应的平面导航图。这种导航图是控制漫游路线的基础数据,但也是共享资源所欠缺的。本文提出模拟操纵法,通过模拟用户在虚拟场景漫游来获取路径数据,进而形成有效的平面导航图。

Virtual reality provides a versatile view for us, and it has become a popular interactive way between computer and human. Although a lot of virtual scenic resources can be found in the Internet, its a big problem to use these shared resource to create a new virtual world. The lack of a 2D navigational map for path planning is an obstacle, which constricts the selected scope. In this paper, a simulated controller approach, which composes the map with motion traces acquired on tracking moving viewpoints of a simulated user in the virtual scene, is proposed to overcome it.