AI4TWINNING

Subproject: Digital twin data consistency across multiple representations

Principle Investigator

Prof. Dr. Thomas H. Kolbe,
Chair of Geoinformatics

Project contributor

Medhini Heeramaglore, M.Tech.,
Chair of Geoinformatics

Project summary

Develop objective measures to assess the level of consistency between various 3D representation types when compared against each other to

  1. enable AI/ML algorithms to learn to reconstruct and segment building objects according to semantic modelling standards.
  2. to assess the changes over time
  3. to allow information flow between 3D representations across spatial and temporal scales

Project (preliminary) results

  • Identifying a common representation type that can flexibly accommodate variation in geometry, semantics levels of detail and spatial extents i.e a)   
  • ‘Volumetric Pixels’ or ‘Voxels’ so that a match can be established.

    Developing an ontology for matching the various model representation in terms of

       Level 1.     Semantic classification level

       Level 2.     Spatial Extent

       Level 3.     Component level match

Project publications

Heeramaglore, Medhini; Kolbe, Thomas H.: Semantically Enriched Voxels as a Common Representation for Comparison and Evaluation of 3D Building Models. Proceedings of the 17th International 3D GeoInfo Conference 2022 (ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences), 2022 [Full text DOI]