I am working on LiDAR data from GIS and R and I want to extract landforms from the DEM. I have found a method to obtain local minima points of my LiDAR data. However, I would like to obtain the geometry of each sink. How can I do that? I have seen that Gradient Vector Flow algorithm (on matlab) and active contour can be used for it. Are there solutions to use it on GIS or R? Or another method?
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