The success of smart phone technologies changed the way information is processed as more and more geo-referenced structures are emerging linking information to specific locations within our environment. Thereby, Augmented Reality has become a key technology as it analyses the smart phone sensor data (camera, GPS, inertial) to derive the detailed pose of the smart phone, with the aim to correlate our real environment to the geo-referenced information space. In particular, this is relevant for application fields where 3Dmodels are used in planning and organization processes as e.g. facility management. In facility construction and management Building Information Model (BIM) was established as a standard that not only holds the 3D-building-geometry but encompasses pipe/electrical systems as well as semantic building information, for example properties and conditions of building components. With this motivation our work integrates BIM and Augmented Reality.

As large ships are never produced in masses, it often occurs that the construction process and production process overlap in time. Many shipbuilding companies have problems with discrepancies between the construction data and the real built ship. The assembly department often has to modify CAD data for a successful installation. We present an augmented reality system, where a user can visualize the construction data of pipes and modify these in the case of misalignment, collisions or any other conflicts. The modified pipe geometry can be stored and further used as input for CNC pipe bending machines. To guarantee an exactly orthogonal passage of the pipes through aligning bolt holes, we integrated an optical measurement tool into the pipe alignment process.