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. 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.

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

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