车辆导航中三维立交建模与路径引导方法研究

Research on Method of 3D Interchange Modeling and Route Guidance in Vehicle Navigation

由于传统的二维导航电子地图无法直观地反映立交的交错关系,对三维立交的建模方法进行了研究。利用三维虚拟现实的方法,采用VRML技术实现了立交桥三维虚拟场景的展示;并采用关键点匹配的方法使得导航过程中导航路径不受上下层路面的影响而准确显示。研究表明,利用该方法进行导航中三维立交的建模是可行的。

It is difficult to reflect the staggered relationship of interchange visually for traditional 2D navigation electronic map.So this paper studied the modeling method of 3D interchange.It used the 3D virtual reality and VRML technology to realize the virtual scene show of 3D interchange.And it used the key points match method to display the navigation path accurately.Experiment results show that this 3D interchange modeling method is feasible.