基于LiDAR数据与数字相机快速生成正射影像技术研究

介绍机载LiDAR系统获取地表三维信息的基本原理以及DSS数字相机与LiDAR系统的硬件组成和数据处理流程,讨论LiDAR设备的检校方法,利用GPS/INS提供的像片外方位元素信息和LiDAR提供的高精度DEM,避免空中三角测量数据处理,快速生成正射影像.摄区试验证明,快速生成正射影像周期短,节约成本,满足了应急测绘需求.

Research on quick implement for the DOM based on LiDAR data and digital camera

It introduces the basic principles of obtaining 3D surface information and the hardware components of DSS/LiDAR system,and presents the data processing flow.A method for calibration of LiDAR is discussed which can complete DOM by the elements of exterior orientation from GPS/INS and the high precision DEM from LiDAR without analytical aerial triangulation.The related experiment of the survey area proves that the DOM is good for short cycle and low-cost which is satisfied for the need of the emergent mapping.