Automatic registration method of aviation and ground LiDAR data based on building contour constraint
An automatic registration and building technology, applied in image data processing, instruments, radio wave measurement systems, etc., can solve problems to be studied, and achieve the effect of accuracy advantages, reliability advantages, and precise registration
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[0072] In this embodiment, the aviation LiDAR data PA={PA i , i=0,1,2,...,C A} as a benchmark, the ground LiDAR data PB obtained by Leica ScanStation2 scanning = {PB i , i=0,1,2,...,C B} registered to the aerial data. The average point spacing of aviation LiDAR data is 1m, the elevation accuracy is 15cm, the plane accuracy is 30cm, and the number of points is about 11 million (see Figure 2-a ); the ground LiDAR data is spliced by the data of 9 stations through the target, the data accuracy is 20cm / 100m, and the number of points is about 30 million (see Figure 2-b ).
[0073] The embodiment of the present invention is based on the automatic registration method of aerial and ground LiDAR data based on building outline constraints (see the flow chart figure 1 ), including the following steps:
[0074] The first step is to extract the outline of the building - the outline of the building is extracted from the aerial LiDAR data, which is called the aerial outline; the out...
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