Alvaro SANCHEZ CORROCHANO | Enrique MARTINEZ SIERRA | Natalia GONZALEZ PERICOT
(Universidad Politecnica De Madrid (Etsam), Madrid, Spain)
Keywords: heritage, photogrammetry, laser scanner
Abstract:
Nowadays there are techniques and digitalization tools to facilitate and improve data collection process to users. Photogrammetry and laser 3D scanner have marked a before and an after in the work of digitization of the built elements, allowing to streamline data collection and maximizing the information provided.
Its high geometric precision, thoroughness, performance retrieved and especially the generation of high fidelity and precision of architectural good assets make these tools optimal for the planimetric surveys.
So this technique, using 3D model, can be not only an instrument for a dimensional and morphological survey of Cultural Heritage but also a tool to obtain a general knowledge of the building, in terms of construction techniques, materials and state of conservation. In order to enlarge the use of this technique principally for pre-design project, all the information can be re-organized inside a database to control all the different phases of the building process.
This work presents the application of these techniques on the “Salón de Reinos” (Hall of the Kingdoms) of the Prado Museum, to several objectives: the first one, to obtain a detailed drawing up to gather a deep constructive knowledge to determine the exact layout of the constructive elements for their structural consolidation. The second objective is related to the exterior of the building, where photogrammetry adds to 3D models information such as textures and a higher level of detail.
The combination of 3D laser scanner and photogrammetry can provide the base to build a virtual reconstruction of different periods of a cultural asset if they are nurtured by the information retrieved on the historical records.
Relevance for the conference: new technologies applied to heritage
Innovation: combination of new documentation technologies