Building corner space position automatic extraction method in vehicle laser scanning point cloud
A vehicle-mounted laser scanning and laser scanning technology is applied in the field of automatic extraction of building corner spatial positions in vehicle-mounted laser scanning point clouds. Extraction effect, highly automated effect
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[0041] The basic idea of the present invention is to propose a vehicle-mounted laser scanning point cloud by studying the point-based plane projection image generated by the point cloud, using image processing, and combining the geometry and characteristics of building walls and corner points. Automatic extraction method of spatial position of building corners in cloud.
[0042] combine figure 1 As shown, the method for automatically extracting the spatial position of building corners in the vehicle-mounted laser scanning point cloud includes the following steps:
[0043] a. According to the height of the local building, the spatial layered point cloud data in the vertical direction within the local range is automatically obtained, and the spatial layered point cloud is plane projected; according to the range of the spatial layered point cloud and the spatial layered point cloud Plane coordinates project the discrete vehicle-mounted laser scanning point cloud onto the plane...
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