Feature Description
In SuperMap iDesktopX, the satellite image production workflow is a GPA model built based on GPA tools. By creating a new workflow, you can perform standardized processing on satellite images, including operations such as orthorectification, fusion, color balancing, and mosaicking, thereby enhancing image processing efficiency and result quality.
Only one ImageryGPA can be created based on a predefined workflow within a single workspace.
Functional Entry
Imagery Tab -> Gallery Dropdown Control in the New Workflow Group -> Satellite Data Processing Workflow Group.
Operation Instructions
- Click the desired workflow type at the functional entry mentioned above to pop up the New Workflow dialog. Available workflows include:
- DOM Production: Completes the full production process from original images to Digital Orthophoto Map (DOM). This workflow outputs mosaicked full-coverage imagery, standard map sheet imagery, or imagery clipped by vector boundaries. It is suitable for application scenarios where multiple scenes need to be stitched to fully cover the study area.
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DOM Mosaicking: Performs fusion, enhancement, and color balancing on images that have already undergone orthorectification, and executes mosaicking to output the final results. Suitable for scenarios where orthorectified image data already exists, and only fusion, enhancement, color balancing, and mosaicking of panchromatic and multispectral data are required to output a stitched result of multiple scenes.
- Color Balancing Production: Processes original imagery into color-balanced single-scene images, outputting results as single or multiple independent scenes. Suitable for scenarios where the study area can be fully covered by a single-scene image, or where color consistency processing and analysis are required for images of the same area at different times.
- True Color Production: Processes original imagery into true-color orthophoto images, outputting results as single or multiple independent scenes. Suitable for scenarios where color differences between multiple scenes are not a concern, and the only requirements are precise geolocation and clear, natural visual effects in the results.
- Fusion Production: Performs panchromatic and multispectral data fusion on original images, outputting results as single or multiple independent scenes. Suitable for scenarios where the core requirement is to obtain imagery with precise geographical location and high spatial detail within a specific area, and it is essential to strictly maintain the original physical meaning or radiometric consistency of the pixels for quantitative analysis.
- Orthorectification Production: Performs orthorectification processing on original images, outputting results as single or multiple independent scenes. Suitable for scenarios where the core rigid requirement is to obtain the precise ground coordinate system (GCS) and true shape of surface features, with no additional requirements for the visual effects, spatial detail, or color aesthetics of the imagery.
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DEM Production: Extracts Digital Elevation Model (DEM) data from original images, outputting a full-coverage result formed by merging and stitching multiple DEM datasets.
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Single-scene DEM Production: Extracts Digital Elevation Model (DEM) data for single or multiple independent scenes from original images.
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DSM Production: Extracts Digital Surface Model (DSM) data from original images, outputting a full-coverage result formed by merging and stitching multiple DSM datasets.
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Single-scene DSM Production: Extracts Digital Surface Model (DSM) data for single or multiple independent scenes from original images. Suitable for scenarios where the sole objective of the data processing task is to quickly obtain high-precision 3D geometry shapes, elevation information, or volume information for a specific area, without requiring any color, texture, or classification information.
- Taking DOM Production as an example, set the following parameters:
- Workflow Type: Displays the type of workflow currently being created.
- Processing Path: Specifies the storage directory for the workspace, datasource, result data, and GPA files.
- Workflow Name: Specifies the name of the current workflow.
- Map Name: Specifies the associated map name; the processing results will be automatically loaded into this map.
- Datasource Name: Defines the datasource for storing intermediate and result datasets.
- After completing the above settings, click the OK button. The system will automatically create a new workspace and load the corresponding datasource, workflow, and map, allowing you to proceed with data processing.
Note:After creating the workflow, you can set the Parallel Count and Parallel Strategy parameters for data processing in Environment Variables to optimize processing performance.
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