摘要
采用应用研究与生产相结合的方法,介绍了城市轨道交通工程中结构断面测量的必要性和相关要求,引入地面3维激光扫描技术进行数据采集,并对采集数据进行去噪、拼接、影像匹配、点云数据抽稀、结构断面提取等操作,讨论了地面3维激光扫描技术在城市轨道交通工程结构断面测量中应用的可行性、技术优势、测量方法和数据处理方法。
This paper combines the method of study and production and introduces the necessities and relative requirements of struc- tural section measurement in urban rail transit projects by using the 3D laser scanning technology for the data collection. These collect- ed data will be used in operations like de - noising, mosaic, image matching, point cloud data and extraction of rare and structure sec- tion, etc. It also discusses the feasibility, technical advantage, measurement methods and data processing method of 3D laser scanning in urban rail transit structural section measurement.
出处
《测绘与空间地理信息》
2013年第12期209-211,共3页
Geomatics & Spatial Information Technology
关键词
3维激光扫描
地铁隧道
结构断面
点云数据
3D laser scanning
subway tunnel
structural section
point cloud data
