I'm trying to extract wall using the LIDAR. I have tried Fusion, Whitebox, Lastools in Arcgis, Saga and Envi. Those are tools that I can use. The walls I am interested are mainly 1 meter high. Some of them locate in woodland and farmland. The most problem blocked me was shrub. For example, I used 'Bare ground' tool of the softwares I mentioned above. All the wall and shrub were removed. If I worked by other workflow, the shrub will remain and complicate walls. Attached is one of my result:
How to remove shrub and remain wall?
How to convert information of wall into vector data such as polyline?
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