Semi-automatic CAD based Reconstruction of Industrial Installations

3D site models of industrial installations are required for tasks like maintenance management, revamping, and path planning. The traditional way of site modelling by photogrammetry relies on the measurement of numerous points and is quite time consuming. Attempts to fully automate 3D reconstruction by CAD based vision fail due to the complexity of the scenes and the lack of modelled knowledge. This paper presents an efficient reconstruction approach for 3D reconstruction which combines the strengths of the human image interpretation and the computer's image processing speed and exploits the advantages of using CAD models in an interactive manner.