城市空间三维数据快速提取与更新研究

Study on the Method of 3-Dimension Urban Spatial Data Quick Collecting and Updating

数字城市是信息时代发展的必然产物,城市建模是数字城市的重要内容。空间数据采集是城市建模中最关键的部分。但受技术水平的限制,我国的城市三维空间数据获取能力还相对比较薄弱。本文论述了城市三维空间数据提取与更新的方法,并对摄影测量与三维激光扫描方法的发展前景作了展望。

Digital city is the inevitable outcome of the development of information age, Urban modeling is the important part of the digital city. Space data acquisition is the city of the most critical part of modeling. But the current technology remains low, the 3D-data acquisition is still difficult in china. This paper discusses the methods used for collecting and updating 3D data in city. And the methods of the photography measurement and 3D-laser scanning are mainly discussed.