Reconstruction of the Disentis monastery from high resolution still video imagery with object oriented measurement routines

The performance and results of the three-dimensional reconstruction of the Disentis monastery from high resolution still video imagery with the software environment DIPAD are described. DIPAD combines digital photogrammetric methods with the capabilities of a CAD system. CAD models are used in an a priori and a posteriori mode. The semi-automatic processing follows the HICOM principle, where a human operator assumes responsibility for the image understanding part and the computer for the object oriented measurement and the data handling. The imagery was acquired with a Kodak DCS 460 still video camera from a helicopter and from terrestrial viewpoints. The resulting CAD-model of the monastery has a geometric accuracy of about 1.5 cm in all three coordinate axes.

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