Filter DSM

TSGF: Suitable for processing low- and medium-resolution DSM data.
UNETF: Can adapt to complex terrain conditions, especially suitable for Filter DSM processing in urban areas.

Feature Description

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

Parameter Name	Parameter Interpretation	Parameter Type
Dataset	Displays the data used for Filter DSM processing. Not editable.	DatasetMosaic
DSM filtering algorithm	Provides two algorithms: TSGF and UNETF. The default is TSGF. TSGF: Suitable for processing low- and medium-resolution DSM data. UNETF: Can adapt to complex terrain conditions, especially suitable for Filter DSM processing in urban areas.	DSMFilterMethod
Elevation filter value	Uniformly subtract the elevation filter value for non-flat areas. 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. Default value is 8.	Double
Output format	Uses the Output format parameter from Set Image Path (DSM/DEM), not editable.	FileType
Compression method	Uses the Compression method parameter from Set Image Path (DSM/DEM), not editable.	CompressMethod
Output file path	Uses the Processing path parameter from Set Image Path (DSM/DEM), not editable.	File
Output orthometric height image	Specifies whether to convert the ellipsoidal height image data of the result to orthometric height image data. Selected: The result ellipsoidal height image data is converted to orthometric height image data. Not selected (default): Only outputs image results calculated based on ellipsoidal height.	Boolean

Outputs the data after filtering processing.
Based on this data, a DEM mosaic dataset is automatically created in the OrthoData datasource.