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How to extract building footprints using nDSM? The nDSM was created from a point cloud (not LIDAR data).

Question asked by on Feb 14, 2018
Latest reply on Feb 14, 2018 by acrawford-esristaff

I have created a nDSM (DSM-DEM). I have place the threshold value to 2m (in this way I have eliminated objects such as shrubs).

My problem is how to differentiate the buildings from the other objects (for example trees). 

I am using ArcMap 10.4.


Thank you in advance.