|
<< Click to Display Table of Contents >> General Tools - Digital Elevation Model Fusion - 1 - Data Preparation |
![]() ![]()
|
Purpose
This tool is used to bring two DEM files generated at different resolutions and on different frames at the same Pixel Spacing and on overlapping zones in order to be exploited in Raster Level DEM Fusion.
The quality files of each DEM must be resampled as well. for the SAR and Optical case these files are the following:
•Precison file (_precision) for the SAR case;
•Cross Correlation File (_cc) for the Optical case.
Technical Note
Two input files are needed, a coarser and a finer DEM files. The coarser file will be resampled to the pixel spacing of the finer one. Additionally, the input files will be cut to a common overlapping area, again based on the finer level DEM. The same process is automatically carried out with the respective accuracy/reliability (respectively "_precision" and "_cc") files, given that the root name remains the same. Note that the reference file is always the finer DEM. The files must have been produced with either SARscape or OPTICALscape.
The Input files must be in the same Cartographic System.
Input Files
Input File
The file at coarser ground resolution to be resampled. Both the DEM and corresponding Precision/accuracy files should undergo this process. This file is mandatory.
Input Weight File
The Precision/accuracy file at coarser ground resolution to be resampled. This file is mandatory.
Reference DEM File
The DEM file at finer ground resolution to be used as reference file for the resampling. This file is mandatory.
Output Files
Output file
Name of the output root. This file is mandatory.
Output Weight file
Name of the resampled Precision/accuracy output. This file is mandatory.
_dem
Resampled and cut DEM or accuracy/precision file (.sml, .hdr).
General Functions
Exec
The processing step is executed.
Store Batch
The processing step is stored in the batch list. The Batch Browser button allows to load the batch processing list.
Close
The window will be closed.
Help
Specific help document section.
Specific Function(s)
None.
Task
References -