基于三维空间场景的铁路选线技术研究

利用先进的机载激光雷达和数码航摄仪采集的高分辨率海量影像数据资源,建立三维空间场景。在"铁路线路虚拟踏勘系统"的海量数据管理平台上,结合CAD平面设计进行铁路选线。研究采用三维虚拟现实技术和CAD平面设计,将基础地形和线路方案相结合,实现基于三维空间场景的铁路选线,使设计方案更加合理,并在一定程度上解决了野外现场调查的人员和设备等投入大的问题。

Technical Research on Railway Route Selection Based on Three-dimensional Scene

This article focuses on establishing three-dimensional scene by using the data which were collected from light detection and ranging and digital aerial camera.Then,the date management platform named railway virtual reconnaissance system,and the CAD plane design technique were used for railway route selection.Through the virtual reality technique and CAD plane design technique,the basic terrain was combined with the railway scheme to implement the railway route selection.These methods can make the design more reasonable and reduce the cost of survey personnel and equipment in field site to some extent.