When contemplating the site of the “Born Centro Cultural” (Born Cultural Centre) in Barcelona, you can imagine daily life in Barcelona in the late 17th and early 18th centuries. It’s like walking the streets of the city that resisted the siege of the troops of Felipe V (Philip V) until its surrender on 11 September 1714. With an area of 8,000 square meters, this is the largest urban site in Europe. Furthermore, it is a unique and exceptional archaeological space because of its dimensions, its state of preservation, and the historical progression that it represents, and also because the historical documentation has allowed names to be put to the families who lived there.
Despite the expanse and the spectacular nature of what can be seen today, this site housed inthe interior of the Born Cultural Centre is one that has not been exhausted in terms of area, depth or research. Therefore, the “Instituto de Cultura de Barcelona (ICUB)” (Cultural Institute of Barcelona) is promoting the creation of an app that collects all of this knowledge, allowing the rich heritage represented by the Born Cultural Centre to be discovered.
Creueta 119 is responsible for the project and for coordinating the different teams involved in the development of this app. To facilitate the rendition of the site and make it more accessible, it is proposed to carry out a realistic 3D survey in full detail. Creueta 119 is incorporating the experience of Captae and Leonard Blum to carry out 3D scanning of the entire surface of the site and to create a mesh with real textures in high resolution that is optimised for iOS and Android. The team formed by Captae and Leonard Blum means the perfect pairing – combining Captae’s experience in digitisation using the 3D laser scanner with Leonard Blum’s experience in the photographic correction, texturisation and optimization of the model.
Digitisation with the FARO Focus3D terrestrial laser scanner allowed an extremely high percentage of the surface of the entire site to be obtained. Even so, there were areas that were difficult to access and that had complicated morphology (wells, ovens, etc.), which could not be fully digitised. The intrinsic geometric characteristics of the site and the distinctive features of the environment made it the perfect candidate to utilise the technology of the FARO Freestyle3D scanner – a handheld scanner with excellent quality and precision that is used especially to cover areas that are difficult to access or narrow spaces. Thanks to a scan volume of up to 8m3, it quickly and reliably documents rooms, structures and objects in 3D and creates high-definition point clouds. With a precision of less than 1.5mm, it is suitable for any application where installations or properties need to be measured quickly from various perspectives.
On the Born site, as this scanner is smaller, lighter, more manageable, and does not have to carry out the digitisation from a static position, the Freestyle3D allowed access to many more nooks and crannies, enabling a point cloud to be obtained that had similar characteristics to that obtained with the terrestrial scanner. Thanks to its lightweight carbon fibre structure, this handheld scanner weighs less than a kilogram and is therefore extremely practical and portable. The tablet software SCENE Capture includes an intuitive user guide – even for users who have not had any training.
In addition, as this is a professional tool by the FARO brand, it is guaranteed that the digitised elements have the same pinpoint accuracy as the Focus3D scanner, and that there is also full compatibility between the data formats generated by the two scanners.
Captae used the system to carry out the digitization of an oven with small dimensions in order to put the limitations of the new device to the test and check that the data obtained could be integrated into the existing model of the complete Born site. The results were convincing, since it was possible to digitise the element and all of its nooks and crannies in just over 20 minutes, whereas this would have taken four times longer using a terrestrial scanner and it would not have been possible to obtain the complete geometry.
The total integration of the data from the two scanners thanks to the SCENE 5.4 software allowed a precise fit between the model of the oven and that of the complete site. Following this test, it can be confirmed that the two systems complement each other perfectly.