Graph-based linking of point cloud and BIM elements for extended DT integration

F. C. Collins, A. Braun, A. Borrmann

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

A Digital Twin (DT) of a building is marked by a regular inflow of spatial and visual data to keep its digital representation up to date. A seamless integration of this data with the existing geometric semantic DT is key. To link the two data sources on building element-level, existing methods use 1. a proximity-based approach which relies on good spatial registration, or, 2. a key-point matching approach using characteristic geometry for specific elements. Positional and geometric deviations between the two data sources can be a challenge. In this paper, a method is proposed to link semantic instances in point cloud data to their DT equivalent using high-level geometric features and topological relationships in the building. The method is demonstrated using a small-scale case study that contains positional and geometric deviations. It is demonstrated that the method is robust to positional deviations of doors and deviating geometry.

Original languageEnglish
StatePublished - 2023
Event30th International Conference on Intelligent Computing in Engineering 2023, EG-ICE 2023 - London, United Kingdom
Duration: 4 Jul 20237 Jul 2023

Conference

Conference30th International Conference on Intelligent Computing in Engineering 2023, EG-ICE 2023
Country/TerritoryUnited Kingdom
CityLondon
Period4/07/237/07/23

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