Thermographic Documentation and 3D Visualization of the Burjassot Silo Yard

Abstract

[EN] Photogrammetric documentation is essential to detect continuous damage and changes in the monument, giving the possibility to restore it in case of heavy damage (YILMAZ et al. 2007). The integration of thermal imaging in heritage documentation is highly valuable as being considered as a non-destructive method allowing users to measure invisible infrared radiation that can be converted into temperature and merge thermal information with RGB data, creating multispectral imaging. In addition, the use of ad-vance geomatics technologies as multispectral imaging, photogrammetry and terrestrial laser scanning ease proper documentation of cultural heritage, safeguarding historical objects and areas, analysing accurately their state of conservation (LERMA et al. 2011). The main goal of this survey is to acquire 3D multispectral data, detect different build-ing materials and the main alteration for the preservation of a relevant artistic historical heritage in Valencia using the low-cost method. The selected site is the Burjassot Silo-Yard ( Silos de Burjassot ), a National Historic-Artistic Monument in Valencia, Spain. Due to the current state of the Silos, where it is not possible to visit fully the monument, high-quality products were created, joining multispectral images and a metric model to help in a future restoration of the Silos.