基于 Lidar 数据和倾斜摄影的城市三维模型构建

摘要

针对传统建模方式建模效率低、模型纹理不够丰富真实等缺点，阐述一种以机载Lidar技术来获取地面点高精度的三维坐标、用倾斜摄影测量为三维建模提供纹理的一种新兴的三维建模方式。实验表明，该建模方式不仅工作效率高、真实反应城市空间布局，而且定位精度高、具备可量测分析功能等，同时提供DOM ，DEM ，点云数据，倾斜影像等数据。%The traditional modeling method has low efficiency and inadequate . This paper expounds an airborne lidar technology to obtain the ground point and high precision of three‐dimensional coordinates , and uses oblique photography measurement to form the texture . It is a new way of 3D modeling . Experiments show that the modeling method is not only of high efficiency with real urban space layout , also of high positioning accuracy and measurable analysis function .At the same time it can provides the DOM ,DEM ,point cloud data ,and tilted image data .