基于Skyline的三维实景地图创建

Building of Real Three-Dimensional Map Based on Skyline

随着"数字城市"建设迅猛发展和三维可视化技术不断成熟完善,三维实景地图作为其基本载体,在城市空间信息共享和数字化管理水平等领域有着十分广阔的应用前景。以Skyline为平台,在采用RCD30倾斜相机航摄数据获取基础测绘产品的基础上,集成融合影像数据、地形矢量、专题数据等多源信息,构建城市三维地表数据集。结合城市实际将地物分为建筑物、植被、交通运输设施、独立地物等四类,采用3ds Max、TerraExplorer搭建地物三维框架并进行纹理映射,获取城市三维地物数据集,实现三维实景地图创建。

With the rapid development of digital city construction and continuous improvement of three-dimensional visualization technology, real three-dimensional map as the basic carrier, has a broad application prospect in the field of urban spatial information sharing and digital management. Takes skyline as the platform, on the basis of using the aerial photographic data of RCD30 oblique camera to acquire basic surveying and mapping products, integrating of image data, terrain vector, thematic data and other multi-source information, to construc- tion of urban 3D surface data set. According to the actual situation of the city, it can be divided into four categories, such as building, vegetation, transportation facilities, independent objects, and so on, using 5ds Max and TerraExplorer to build three-dimensional terrain features and texture mapping to obtain urban 3D feature data set, so as to extract real three-dimensional map building.