The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLVI-5/W1-2022
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-5/W1-2022, 109–114, 2022
https://doi.org/10.5194/isprs-archives-XLVI-5-W1-2022-109-2022
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-5/W1-2022, 109–114, 2022
https://doi.org/10.5194/isprs-archives-XLVI-5-W1-2022-109-2022

  03 Feb 2022

03 Feb 2022

CO-REGISTRATION OF TLS POINT CLOUDS WITH SCAN-PATCHES AND BIM-FACES

F. Gruner1, E. Romanschek1, D. Wujanz2, and C. Clemen1 F. Gruner et al.
  • 1HTW Dresden - University of Applied Sciences, Faculty of Spatial Information, Dresden, Germany
  • 2technet GmbH, Am Lehnshof 8, 13467 Berlin, Germany

Keywords: Co-Registration, BIM, point cloud, TLS

Abstract. To geometrically compare point clouds with Building Information Modeling (BIM) models, they must be transformed to the same coordinate system. The determination of the transformation parameters is called registration. If another model is used instead of control points, the term co-registration has recently been established. The plane-based (relative) registration of point clouds from terrestrial laser scanning (TLS) is successfully used in practice with high accuracy and quality assurance. Based on this, we present a special co-registration approach, that makes use of planes from BIM models. Most buildings have a large number of planar faces, so it is obvious to use faces from BIM. We present intermediate research results of an approach that uses the local planes (patches) of the TLS point clouds also to determine the transformation parameters for the registration to BIM. The aim is to avoid the need of ground control points. The approach requires a (partially) existing BIM model in which the highly precise point cloud is to be registered. In the long term, the procedure is developed for automated construction progress documentation.