The project applies laser and photogrammetric geotechnologies to digitalize the Castle of Turégano (Segovia) and has been awarded by one of the most important national awards in surveying.
“Application of laser and photogrammetric geotechnologies in the digitization of complex scenarios: Castle of Turégano (Segovia)” is the title of a project of Ana Martín de Frutos and Saúl Javier Yáñez Díaz and directed by Professor of the University of Salamanca Diego González Aguilera. It is a final year project to undertake documentation and dimensional modeling through nondestructive geotechnologies applied to the Castle of Turégano (Segovia) and for which the authors have obtained the third prize San Isidoro 2010, awarded by the College of Engineers Surveying.
As González Aguilera explained “San Isidoro awards are the most important awards at the national level for final projects in Surveying Engineering degree.” He also stressed that in the Polytechnic School of Ávila is not the first time they get one of these prestigious awards, as “in addition to this third prize, in the last five years we have achieved three first prizes.”
The ultimate goal of this geotechnologies such as laser and photogrammetric application project to the complex stage of the Castle of Turégano, “is to have a rigorous mapping document that can be exploited by the different agents involved in the work of restoration and conservation of architectural heritage,” the authors explain in the summary of their work.
To do this they processed the point clouds collected by different field stations in order to optimize the time of capture. This work is streamlined reducing the scanning resolution to 100 dots per square meter, resolution enough for its objective since its aim was to transfer the tedious task involved in the model vectorization.
Thus, the work of Martín de Frutos and Yáñez Díaz represents another step in the transformation of laser data to CAD models, which are lighter and more compact and offer advantages over the 3D model, such as to complete occlusions and shadows or areas without information as well as project photo textures obtaining a greater visual appeal and a great similarity with the reality.
The authors of the awarded project have also done extensive photographic documentation of the entire Castle of Turégano complex as a virtual tour that allows us to cross it and learn the details, elements and views impossible to see at street.