Alvaro SANCHEZ CORROCHANO | Enrique MARTINEZ SIERRA | Natalia GONZALEZ PERICOT
(Universidad Politecnica De Madrid (Etsam), Madrid, Spain)

Keywords: heritage, photogrammetry, laser scanner, accessibility

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 in order to control all the different phases of the building process: its knowledge for the design project, the project of conservation and restoration and the building site phase.
The survey realized with these kind of technologies can be useful also for the realization of models and maps that can be used to make blind persons able to understand the environment in which they live. The walls of the historic tows were built without any consideration for people with disabilities but now the UN Convention on the Rights of Persons with Disabilities asks more attention for weak users that must have the chance to visit and know the Cultural Heritage.
A method for drawing up protocols on the use of these techniques applied to heritage is prepared, being fundamental in the documentation for restoration, adequacy and accessibility, consolidation, intervention and enhancement projects and virtual recreation of these architectural assets.

Relevance for the conference: new technologies applied to heritage
Innovation: combination of new documentation technologies