Point cloud processing method and system based on random downsampling
A processing method and downsampling technology, applied in the field of point cloud processing, can solve the problems of destroying the geometric information of objects, easy loss, sacrificing spatial information, etc., to reduce the number of point clouds, accurately process the results, and reduce the amount of calculation.
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[0018] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.
[0019] Such as figure 1 As shown, the present invention provides a method for processing point clouds based on random downsampling, including:
[0020] S1 performs local feature aggregation on the original point cloud;
[0021] S2 randomly downsamples the point cloud after local feature aggregation; after the local feature aggregation operation, each point carries the information of its K neighbors, so random N times downsampling of the original point cloud will not be caused by non-sampling The key points lose the information carried by the key points. Therefore, a random sampling method with a time complexity of constant level can be used, such as uniform sampling. If necessary, step S1 can be repeated to perform local feature aggregation on the ...
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