基于机载LiDAR数据的建筑物屋顶点自动提取精度提高的研究

Research about Accuracy Improvement of Airborne-Based LiDAR for Building Roof Automate Extraction

机载LiDAR测量技术的发展为大面积获取城市空间信息提供了一种全新的手段[1],其中机载LiDAR所获取的点云数据中包含有大量的建筑物屋顶信息,城市地区建筑物信息的提取对于城市数字化的建立具有重要的意义。目前主流的LiDAR处理软件均提供了建筑物屋顶点自动提取的功能,在此基础上,通过本文的方法可以进一步提高建筑物屋顶点自动提取结果的精度和完整度。

Airborne-based LiDAR technology provides a new method for acquiring large-scale spatial information in a rapid mood. Among these acquisitions,lots of useful information about building is included. Meanwhile,these informa-tion have important significance pushing on the city digitalizing progress. Nowadays,mainstream LiDAR processing soft-ware have capabilities for automate-building-detection. On the basis of that,this research focuses on the improvement for the accuracy of the automate-building-detection result. By our method,the final accuracy of the result got a signifi-cant improvement.