Virtualización del patrimonio arquitectónica caído: la torre de la iglesia de San Esteban en Valdespina, Palencia

The towers of the churches have an important role as the identifying element of our peoples and further define the skyline of the landscapes of Castilla (Spain). In late August 2012, the people of Valdespina (Palencia) was down a portion of the tower of the Church of San Esteban. Due to the state of ruin was left, the authorities were forced to demolish it completely, leaving only standing the lower body of the tower.The objective of this work was to recover the visual image of the tower of the Church of San Esteban by digital virtualization, making a cheap safe virtual reconstruction for the building, and tight current broadcast standards and dissemination through ICT (Information and Communication Technologies), which facilitates dissemination and released to future generations what it was that architectural element disappeared.It began making data collection by the party still standing. A laser scanner for the architectural element of a geometric pattern precision was used first. Then a ground and air high-resolution photoresist is performed by a RPAS (Remotely Piloted Aircraft Systems) in order to generate the actual texture of the stone walls by photogrammetry. Unifying the results of both processes, a 3D model with a geometric precision and high radiometric quality (texture color) was obtained.After obtaining the model was implemented in augmented reality software, in which we introduce the geometric model parameters location and the identifying features of the church to function as a control target.All this will allow any user to point the camera of your mobile device on the church of San Esteban, will be able to see the tower that once was there in real time.