I have used the lidR
package (https://github.com/Jean-Romain/lidR) to produce a normalized point cloud. I then filter out the points tagged with the overlap bit using:
opt_filter(ctg) <- "-drop_overlap"
catalog_retile(ctg)
The resulting point cloud appears to have a directional pattern, where points are present in somewhat uniform strips. It seems the unfiltered point cloud has a similar pattern but much it is much less pronounced. Is this a normal feature of lidar data?
Here is a 3d representation of the normalized and filtered point cloud with the pattern I have described: