We can create, based on dense point cloud, a Digital Surface model (DTM), that is a surface representing the highest elevation of a terrain.
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From the Outputs bar, select Elaborate DSM
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Define the DSM settings.
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Hole fill: elect one of the available mode to fill the DSM holes.
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All: this mode fills all holes.
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Inner: in this mode, only the holes within the surface are filled.
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None: in this mode, no holes are filled.
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Cell size: reduce this value in order to increase the DSM quality.
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Click OK for the final output.
