Filter DSM
Feature Description
Filter DSM refers to the process of applying filtering to DSM data to remove surface features such as buildings and vegetation, thereby obtaining DEM data.
Supported since SuperMap ImageX Pro 11i(2023) version.
Feature Entry
DSM Process Window -> Filter DSM Node.
Parameter Description
| Parameter | Description | Type |
| Dataset |
Displays the dataset for Filter DSM processing (read-only). |
DatasetMosaic |
| Filter DSM Algorithm |
Provides TSGF and UNETF algorithms. Default: TSGF.
|
DSMFilterMethod |
| Elevation Filter Value | Uniformly subtract this value from non-flat areas. Default: 10. | Double |
| Slope Threshold | Areas with slope values ≥ this threshold are considered mountainous; otherwise flat. Default: 8. | Double |
| Output Format | Uses the Output Format parameter from Set Image Path (DSM/DEM) (read-only). | FileType |
| Compression Method | Uses the Compression Method parameter from Set Image Path (DSM/DEM) (read-only). | CompressMethod |
| Output File Path | Uses the Processing Path parameter from Set Image Path (DSM/DEM) (read-only). | File |
| Create Image Pyramid | Checked by default. Builds pyramids using specified resampling method to improve image display performance. | Boolean |
| Resampling Method | Available when Create Image Pyramid is checked. Default: Average. For more methods, see Resampling Method. | PyramidResampleType |
| Asynchronously Create Statistics | Enables dynamic layer stretching during image browsing using statistics. If unchecked, statistics creation occurs during tool execution (may take time). Default: Checked. | Boolean |
Output
- Outputs filtered data.
- Automatically creates DEM mosaic dataset in OrthoData datasource.
Related Topics