Power line point cloud completion method

The invention relates to a power line point cloud supplementing method, which comprises the following specific steps of: importing laser point cloud data by using point cloud data processing software, preprocessing the imported laser point cloud data, and distinguishing a power line point cloud from other region point clouds; re-projecting the preprocessed point cloud coordinates of the power lines, and fitting each power line through spatial clustering analysis and catenary equations according to the number and distribution condition of the power lines and the existing point cloud data of the power lines; constructing a tubular projection plane by taking each power line as a center, projecting power line point cloud data within a preset distance range to the tubular projection plane and expanding the data into a plane; constructing a delaunay triangulation network on a plane, continuously supplementing missing power line point cloud data by using the side length of each triangle in the triangulation network,