Page 137 - AC/E Digital Culture Annual Report

Pórtico de la Gloria VirtualPórtico de la Gloria Virtual66 is a long-term project run by the University of Santiago de Compostela. It was begun in 2010 as part of the Programa Catedral.67 Developed in collaboration with the Fundación Barri , this project arose with the aim of gleaning the data needed to analyse and diagnose the work required with a view to drawing up a preventive conservation plan for the Portal of Glory in Santiago cathedral and a comprehensive intervention proposal.During the preliminary stage documentation work was carried out to ascertain the condition of the portal using a high-resolution 3D scanner and thorough high-resolution photographs, which provided extensive complementary information.This documentation was used by a team from the USC’s Department of Electronics and Computing to create a three-dimensional virtual model of the portal in the greatest possible detail in order to pinpoint the various pathol- ogies and assess its condition with a view to future intervention. The audiovisual production entitled Pórtico de la Gloria Virtual68 featured a virtual stroll through the Portal of Glory through this 3D model, providing unusual perspectives and details not previously seen, as well as raising awareness of its state of conservation and the need for intervention. The team’s ultimate goal is to develop a tool for exploring and helping study and conserve this monument.Tomb of Seti IThe tomb of this pharaoh of the 19th dynasty is located in the Valley of the Kings and is one of the largest and most beautiful on the complex. Visits have been regulated and stopped in recent years to help conserve it.This fact spurred the initiative to create a full- size reproduction69 of the tomb using digital technology in a project on which the FundaciónFactum70 (Madrid) and the University of Basel (Switzerland) are collaborating for the Egyptian Ministry of Antiquities. The project is part of the initiative for the conservation of the Theban necropolis started up by the foundation.It is tting to stress the considerable scope of this project, which was begun in May 2016 and is still underway, as it uses various technologies to achieve a reproduction of the tomb that is as lifelike as possible: short- and long-range3D laser scanning, short- and medium-range photogrammetry, and high-de nition colour photography. For the data acquisition process, two 3D scanners were rst used to obtain 70% of the high-resolution images of the walls of the tomb. A few technical limitations of the scanners led this technology to be combined with 3D photogrammetry in areas more di cult to reach with the scanner, such as corners and the upper and lower sections of the walls and rooms. Finally, high-de nition photography was used to document the wall decoration of the tombs in greater detail and capture the colours properly, though in some cases it was also employed for sections of wall without reliefs or any other type of decoration.Post-processing of the digital documentation began at the end of 2016 with the rendering of digital images and construction of a few panels of the Egyptian tomb in polyurethane resin blocks using 3D printing.Arc/k ProjectAimed at saving monuments “in danger of extinction” and handing them down to future generations, the Arc/k Project71 collects pho- togrammetric documentation on some of the constructions in the city of Palmyra (Syria) that were partially destroyed by Islamic State.The Arc/k project was started up as a non- pro t organisation that sets out to use digital techniques for the digital conservation and protection of heritage, particularly that which isAC/E DIGITAL CULTURE ANNUAL REPORT 2017137The use of digital technologies in the conservation, analysis and dissemination of cultural heritage