基于机载激光点云的建筑物高度提取方法研究

Research on the Extraction Method of Building Height Based on Laser Point Cloud

以宁波市第一次地理国情普查中的建筑高度普查专项工作为例,提出了一条基于激光点云分类成果、大比例尺地形图和DEM,快速提取建筑物高度的技术路线。实验结果表明,该方法可快速准确提取建筑高度和顶部纹理信息,从而为城市建设和规划提供了可靠的测绘地理信息服务和保障。

Taking the building height extraction project of Ningbo geographical conditions survey for example, this paper proposed a technical route for extracting building height based on classified laser point cloud, DEM and the large scale DLG products. The experimental result shows that the proposed method can get building height and the top of the building texture information at the same time, which can guarantee the reliable geographic information service for city planning and construction.