Meetup 12/12/2018: Augmented & Virtual Reality: wat zijn de mogelijkheden voor een slimme stad?
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This document provides an overview of a company that offers 3D city modeling services based on aerial imagery and LiDAR data. It discusses the company's history providing these services since 1964 across Europe. It then focuses on a case study of creating 3D models of the city of Antwerp, describing the automatic and manual processes used to generate LOD1 and LOD2 CityGML models from input LiDAR and building footprint data, including topology correction. Potential applications and added value of the 3D city models are also mentioned.
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Meetup 12/12/2018: Augmented & Virtual Reality: wat zijn de mogelijkheden voor een slimme stad?
- 1. Your Partner in Geo Information Services Frank De Boeck Victoria Jadot 12/12/2018 3D City Models
- 2. Introduction to the company Pioneer in photogrammetry, aerial photography,… since 1964 Experts in all fields regarding geo-information services Belgian origin, but with subsidiaries spread over Europe: Breda Lille Rheinbach Warsaw Prague Bratislava Budapest Bucharest Sofia France Belgium Netherlands Germany Poland Czech Rep. Slovakia Hungary Romania Bulgaria 2
- 3. History Started in 2006 with complete coverage of the Netherlands and 15 km over the border (LOD1) from 25 cm resolution aerial stereo imagery (telecom). 3 EURPres20110076–SCe/FDB–25/05/2011
- 5. Namur 3D - 2017 5 3 tenders - Namur 3D (new flight 8 cm) - Thermography - Website - → https://www.pavillon-namur.be/3d
- 6. Flanders in 3D ? 6 - GRB - DHM Vlaanderen - Open data - Automatisch of interactief
- 7. Antwerpen in 3D 7 Antwerpen in 3D • Automatic delivery of 3D Building model for entire city: o LOD1 and LOD2 : CityGML, ESRI SHP, STL o TIC + Bridges + xAL adresses are included CityGML file • Manual delivery of 3D Building model for historical city center: o LOD1 and LOD2 : CityGML, ESRI SHP, STL o TIC + xAL adresses are included CityGML file
- 8. Antwerpen in 3D 8 Prepare & QC input data LiDAR data Building Classification LiDAR Building Footprints GBG/GBA/KNW footprints ArcGis Topology check
- 9. Antwerpen in 3D 9 Automatic extraction of 3D building with TerraScan + Microstation
- 10. Antwerpen in 3D 10 Example of manual interaction in TerraScan Automatic vectorisation Manual interaction in the model
- 11. Antwerpen in 3D 11 FME Topology Topology correction and automatic classification ❑ Double vertices remover ❑ Planarity of roof planes ❑ 2D & 3D Snapping ❑ Roof type classification: flat, sloped, gabble, hipped, combination of roof forms RhinoCity Topology Topology correction ❑ Duplicates and integrity of polygons ❑ Second planarity check ❑ Roofs are snapped on footprint boundary Example of wrong integrity on polygons
- 12. Antwerpen in 3D 12 CityGML LOD2 Manual improvements Automatic part Manual interaction
- 13. Antwerpen in 3D 13 CityGML LOD2 Manual improvements Automatic part Manual interaction
- 14. Antwerpen in 3D 14 Technical issues Invalid footprints GRB different than LiDAR pointcloud GRB not present GRB present but not in point cloud GRB Updated Vectorisation done based on point cloud Building extruded 0.5m
- 15. Added Value potential Thermography Solar potential Telecom Insurance Incidents (Acces e.g. Fire fighters) VR/AI Architecture/Planning Combine with all other data bases that have common ID (e.g. address): Population … 15 EURPres20110076–SCe/FDB–25/05/2011
- 16. Your Partner in Geo Information Services Questions?