Detecting and carving culverts in LiDAR DEMs

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Detecting and carving culverts in LiDAR DEMs


Dear all,


Since there is a lot of expertise on the ML in hydrology and LiDAR, I was wondering if someone is aware of a GRASS approach for identifying and carving Culverts (as well as removing bridges) in LiDAR DEMs.


Here some non-GRASS examples of what has been done earlier:


I do have an idea of how to solve this in GRASS (also conceptually a bit different from the approaches above), with a rather simple / simplistic prove of concept based on geomorphometrics.

Yet, maybe someone around has a good procedure ready? Is there collaboration potential / interest?





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