New Satellite Image Processing Workflow

Feature Description

In SuperMap iDesktopX, the satellite image production workflow is a GPA model built based on GPA tools. Through the new workflow, you can perform standardized processing on satellite images, including orthorectification, fusion, color balancing, mosaicking, etc., to improve imaging efficiency and result quality.

Only one imagery GPA based on a predefined workflow can be created in a workspace.

Feature Access

Imagery tab -> New Workflow group's Gallery dropdown control -> Satellite Data Processing Workflow group.

Instructions

  1. In the feature access above, click the workflow type to create. The New Workflow dialog box appears. Available workflows include:
    • DOM Production: Completes the full production from original image to digital orthophoto map (DOM). This workflow outputs mosaicked whole images, standard map sheet images, or images clipped by vector ranges. It is suitable for application scenarios where the study area requires multiple scene images to be mosaicked for complete coverage.

    • DOM Tessellation: Performs fusion, enhancement, and color balancing on orthorectified images, and executes mosaicking to output final results. Suitable for scenarios where ortho image data is already available, and only fusion, enhancement, color balancing, and mosaicking of panchromatic and multispectral data are required to output a mosaicked result of multiple scene images.

    • Uniform Color Production: Processes raw imagery to color-balanced single-scene images, outputting color-balanced results for one 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 of images of the same area at different times are required.
    • True Color Production: Processes raw imagery to true-color orthophotos, outputting true-color results for one or multiple independent scenes. Suitable for scenarios where color differences between multiple scene images are not a concern, and only accurate geolocation and clear, natural visual effects are required.
    • Fusion Production: Performs panchromatic and multispectral data fusion on original images, outputting fused results for one or multiple independent scenes. Suitable for scenarios where the core requirement is to obtain images with accurate geographical location and high spatial detail within a specific area, and pixel original physical meaning or radiometric consistency must be strictly preserved for quantitative analysis..
    • Orthorectification Production: Performs orthorectification on original images, outputting corrected results for one or multiple independent scenes. Suitable for scenarios where the rigid core requirement is to obtain accurate ground control system (GCS) and true shape of surface features, with no additional requirements for image visual effects, spatial details, or color aesthetics.

    • DEM Production: Extracts digital elevation model (DEM) data from original images, outputting a whole result merged and mosaicked from multiple DEM data sets.

    • Single Scene DEM Production: Extracts digital elevation model (DEM) data for one or multiple independent scenes from original images.

    • DSM Production: Extracts digital surface model (DSM) data from original images, outputting a whole result merged and mosaicked from multiple DSM data sets.

    • Single Scene DSM Production: Extracts digital surface model (DSM) data for one or multiple independent scenes from original images. Suitable for scenarios where the sole goal 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.

  2. Taking DOM Production as an example, set the following parameters:
    • Workflow Type: Displays the type of the workflow currently being created.
    • Processing Path: Specifies the storage directory for the workspace, data source, result data, and GPA files.
    • Input Image Type: Select the image type to process.
      • Panchromatic and Multispectral Data: Displays all nodes of the workflow.
      • Panchromatic Image: Does not display Multispectral and Panchromatic Registration, Image Fusion, or True Color Output.
      • Multispectral Image: Does not display Multispectral and Panchromatic Registration or Image Fusion.
    • 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 data source for storing intermediate and result datasets.
  3. After completing the above settings, click the OK button. The system will automatically create a new workspace and load the corresponding data source, workflow, and map, and you can proceed with data processing.
Notes:

After creating a workflow, you can set the Parallel Count and Parallel Strategy parameters for data processing in the Environment Variable to optimize processing performance.

Related Topics

DOM Production Workflow

DOM Tessellation Workflow

DSM/DEM Production Workflow

Setting Environment Variables