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Table 2 Applied filters

From: Use of 3D models as a didactic resource in archaeology. A case study analysis

Filter Definition  
Dark Scan Point It removes points based on a reflectance valuve
It is used to remove scan points with too much noise
Reflectance threshold 200
Distance It removes all scan points which are outside of a certain distance range Maximum distance: 30 m
Stray Point It checks if the 2D grid cell of a scan point contains a sufficient percentage of points with a distance similar to the scan point itself Grid size: 3px
Distance threshold: 0.02 m
Allocation threshold 50%
Edge Artifact It is especially useful to remove artefacts at the edges of obejects Yes
Smooth It is used to minimize noise on surfaces No