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

作　　者：王江春[1] 罗建强[1] 张申生[1] 

机构地区：[1]上海交通大学计算机集成技术实验室,上海200030

出　　处：《系统仿真学报》2004年第7期1499-1501,1515,共4页Journal of System Simulation

基　　金：国家863项目"面向大批量定制的协同商务与集成设计系统" 课题(2001AA412010)

摘　　要：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.

关 键 词：虚拟现实 导航地图 VRML 随机移动 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]