GEOREFERENCING

GNSS RTK rovers are used to collect the geographic (GPS) coordinates of ground control points (such as those of reference sphere targets) with millimeter accuracy (roughly 8 mm). This allows us to georeference 3D data such as registered point clouds, BIM models, plant design models, 2D CAD documentation, topographic information, and ground penetrating radar data to align to the actual geographic coordinates of the area. When 3D scan data, such as a registered point cloud obtained from 3D laser scanning, is georeferenced the coordinate system of the 3D scan data adopts a geographic coordinate system instead of a local coordinate system. The type of geographic coordinate system used can be tailored to the client's needs with the standard coordinate system being WGS 84. Georeferencing 3D scan data allows for integration with geographic information systems (GIS), monitoring and change detection, more efficient and accurate planning and maintenance, and provides valuable spatial context.