Experiences about Fusioning 3d Digitalization Techniques for Cultural Heritage Documentation

In this paper we present three experiences about combining 3D digitalization techniques for cultural heritage documentation. Retable of Bouro (Portugal) is a big and complex wood structure from the XVII century part of the Monastery of Santa Maria do Bouro. An urgent conservation and restoration program was promoted in order to prevent further damage in the retable. A complete 3D graphical record was needed to support this intervention. The main objective was to keep control of the main structures and to detect wood deformations. This was the reason why laser scanner and direct measurement methods were used. The Gävle theatre is a XIX century building which was recorded for virtual tourism. Thus, this 3D model was made with laser scanner and photo texturing. The third case consists of a highly accurate 3D-reconstruction of parts of Santo Domingo Church, an XV century building, in order to get a detailed graphical record. Accurate laser scanning, photorealistic texture modelling and monoscopic photogrammetry methods were necessary for a complete and accurate 3D model of each part of the recording. The final outputs for each of these cases were adjusted to the needs of the conservation and restoration technicians. Bidimensional vector drawings, 3d models, orthophotographs and TIN surface orthoimages were produced in order to achieve this goal. * Cabo Verde 15, 06800 Mérida Spain, Phone.: +34-924317030 / +34-666278798