机载LiDAR数据和航空影像基于角特征的配准

机载激光雷达(Light Detection And Ranging,LiDAR)系统近年来逐渐成为一种新兴的测量手段,是一种可以直接提供大量地面离散点的高精度三维信息的主动式遥感技术,具有依赖控制测量条件少、受天气影响小、自动化水平高等优点。然而LiDAR获取的数据主要是离散激光点云,具有高精度的空间结构信息而缺少纹理和光谱信息。将LiDAR数据和遥感影像数据进行融合将是当今测绘科学研究的方向之一。融合影像数据和点云数据的关键步骤就是将两者进行高精度的配准。

The Registration Based on Corner Features between the LiDAR Data and Remote Sensing Image

The airborne LiDAR (Light Detection And Raning,LiDAR),as a kind of active remote sensor,is a system that can provide a large number of high-precision three-dimension information of ground.It has been a new kind of measurement.It boasts the advantages of relying less on the conditions of the control survey,being affected less by the weather and high level automation.However,the LIDAR data is discrete point cloud,which has high-precision spatial structure information and less of texture and spatial information.The fusion of LiDAR data and remote sensing image will be one of the surveying and mapping science research hotspots at present.The key steps to fusion are a registration between LiDAR data and remote sensing image.