Automatic extraction method of power tower in random laser point cloud data
A technology for automatic extraction of laser point cloud data, applied to radio wave measurement systems, instruments, etc.
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[0020] In the method for automatically extracting power towers from disordered laser point cloud data of the present invention, firstly, the laser point cloud data is gridded to generate an elevation image map similar to a digital image. The line segment corresponding to the power line on the elevation value image is generally only a few pixels wide, and the electric tower and potentially dangerous features are clustered point groups. The corrosion operation in mathematical morphology can eliminate the boundary of the object. Therefore, the power line can be eliminated through the corrosion operation first. , and then use the expansion operation to get the connected area, and then use the K-means clustering to get the point group of each connected area, and finally distinguish the electric tower and the potentially dangerous ground object by the size of the area. The specific process is as figure 1 shown.
[0021] The line segment corresponding to the power line on the elevat...
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