2. Workflows and services

IQmulus provides several pre-defined geospatial workflow and processing service as solutions to users' requirements in the targeted application areas (Showcases) of the project. The provided information about the services and workflows will help you to find the most suitable tools for your specific questions and also to create your own workflows.

Please find the overview of the IQmulus Project and Processing workflows in our Brochure here.

Below you can also find Training Materials gives you detailed information on execution procedures for each workflow.

Flood and waterlogging detection using satellite images [Workflow LS3]

Flood and waterlogging detection using satellite images [Workflow LS3]

The workflow provides quick solution for extracting flood/waterlogging information from multispectral remotely sensed images. The threshold-based thematic classification works primarily on top of atmosphere reflectance values and multiple spectral indices. You can run the workflow on TIFF or GeoTIFF images. Additionally to the image, original metadata has to be uploaded because of ToA-reflectance calculation. As a result, an uncompressed regular TIFF of GeoTIFF will be generated, containing thematic class numbers indicating the degree of flooding.

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Inspection of the quality of the representation [Workflow MS2]

Inspection of the quality of the representation [Workflow MS2]
Error checking - distance of survey data from a surface. Comparison of a new survey point cloud with existing LR -B spline approximation.

The work flow is tightly integrated with MS1 and can serve as a starting point for a more interactive deconfliction process than the one envisaged in MS1.

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Change detection by comparing DEMs from different dates [Workflow MS4]

Change detection by comparing DEMs from different dates [Workflow MS4]

Detection of surface changes from bathymetric point clouds and existing elevation models will address user stories including coastal monitoring, geomorphology, physical oceanography, etc. 2D Displacement measurement using DSM/DTM/DEM and optical images using sub- pixel image cross-correlation with spatial regularization for measuring submarine dune migration.

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Individual tree extraction from urban LMMS data [Workflow US2]

Individual tree extraction from urban LMMS data [Workflow US2]

Methods for extracting e.g. trees from LMMS data are certainly under development at different research institutes, but cannot yet be viewed as well established. It is still notably considered challenging to successfully identify individual trees from part of a point cloud classified as sampling trees.

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