DSM Filtering

Feature Description

DSM Filtering refers to the process of filtering DSM data to remove surface features such as buildings and vegetation, thereby obtaining DEM data.

SuperMap iDesktopX11i(2023) version starts to support it.

Parameter Description

Parameter Name Parameter Interpretation Parameter Type
Dataset

Displays the data used for DSM filtering processing, and it is not editable.

 DatasetMosaic
DSM Filtering Algorithm

Provides two algorithms: TSGF and UNETF, with TSGF as the default.

  • TSGF: Suitable for processing medium and low-resolution DSM data.
  • UNETF: Can adapt to complex terrain conditions, especially suitable for DSM filtering processing in urban areas.
 DSMFilterMethod
Elevation Filter Value A uniform elevation filter value is subtracted from non-flat areas. The default is 10. Double
Slope Threshold If the slope value is greater than or equal to this slope threshold, the area is considered a high mountain area; otherwise, it is a flat area. The default value is 8. Double
Output Format Uses the Output format parameter from Set Image Path (dsm/dem), and it is not editable. FileType
Compression Method Uses the Compression method parameter from Set Image Path (dsm/dem), and it is not editable. CompressMethod
Output File Path Uses the Processing path parameter from Set Image Path (dsm/dem), and it is not editable.
File

Output Result

  • Outputs the filtered data.
  • Automatically creates a DEM mosaic dataset in the OrthoData data source based on this data.

Related Topics

Set Image Path (dsm/dem)

Generate DSM

Output Results (DEM/DSM)