Abstract
Airborne laser scanning and ranging technology (Light Detection And Ranging, LiDAR) can reliably and quickly directly obtain the three-dimensional coordinate point cloud of the measured object. It is the research and application of typical tree species identification and ranging positioning of transmission line corridors One of the important technical means. Completing the precise geometric registration of multi-spectral images and LiDAR point clouds is an important foundation for subsequent work such as power line extraction, tree species classification, and tree crown extraction in related research applications. This research focuses on the related research content of the geometric registration of lidar point cloud and multispectral image of transmission line corridor, and carried out the research of image/point cloud geometric registration technology based on the idea of minimizing the distance between the intersection point of photogrammetry and the surface of the laser point cloud. The precise registration of multi-spectral image and LiDAR point cloud data has been completed.
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