filterNoise stage not working as it should

[vonnonn]

In notebook, 01_3DEP_Generate_DEM_User_AOI.ipynb, the filterNoise stage (lines 404-411) does not remove classes 7 and 18 using attached AOI (Yellow_creek(copy).geojson)

My workaround:

if filterNoise == True:
    
    filter_stage = {
        "type":"filters.range",
        "limits":"Classification[1:6],Classification[8:17],Classification[20:20]"
    }

    filter_interquartile_stage = {
        "type":"filters.iqr",
        "dimension":"Z",
        "k":3.5
    }
    
    pointcloud_pipeline['pipeline'].append(filter_stage)
    pointcloud_pipeline['pipeline'].append(filter_interquartile_stage)

I added the iqr filter to remove remaining noise that was not classified as either 7 or 18.

Yellow_creek (copy).zip