Abstract
Abstract. Three-dimensional (3D) models have become a great source of data for the conservation, reconstruction, and documentation of emblematic buildings of cultural heritage. In this study, photogrammetry based on Unmanned Aerial Vehicles (UAVs) was applied to perform a photogrammetric survey of a dilapidated cultural heritage building. On the basis of this survey and the historical information gathered from the building, its virtual reconstruction has been carried out using a Historic Building Information Modeling (HBIM); applying realistic materials and textures in order to document it.
Highlights
The methods of digitization or 3D virtualization based on images, today, are a very useful technique in the area of cultural heritage; related to the Unmanned Aerial Vehicles (UAVs), which represent an emerging and economic technology in the data collection of photogrammetric surveys; and can be equipped with high resolution cameras, obtaining nadiral images and oblique during low altitude flights with greater security for the operator
New challenges arise in 3D digital modeling (Barazzetti et al, 2015), such as Historic Building Information Modeling (HBIM)
In our study, a total of 8 Ground Control Points (GCPs) and 330 zenith photographs were used, so the number of GCPs per 100 photos is around 2.5, which shows an overestimation of the accuracy of the block adjustment with respect to the of the factor 3.6 model
Summary
The methods of digitization or 3D virtualization based on images, today, are a very useful technique in the area of cultural heritage; related to the Unmanned Aerial Vehicles (UAVs), which represent an emerging and economic technology in the data collection of photogrammetric surveys; and can be equipped with high resolution cameras, obtaining nadiral images and oblique during low altitude flights with greater security for the operator. The use of oblique photographs improves the results obtained by Structure from Motion (SfM) Photogrammetry, by allowing the visualization of hidden details of the nadiral views (Aicardi et al, 2016), avoiding the use of terrestrial photographs The processing of these images with SfM algorithms can provide very accurate 3D models (Chatzistamatis, Kalaitzis, Chaidas, Chatzitheodorou, Papadopoulou, Tataris and Soulakellis, 2018), obtaining as a result a three-dimensional mesh model that can be used as a reference for the creation of a Building Information Modeling (BIM) model, whose methodology covers the design, construction and administration processes of a building's data throughout its life cycle (Merchán, Salamanca, Pérez, Moreno, 2018). Parametric objects created on BIM platforms can not be used; having to create new objects and own libraries, slowing down the modeling process For this reason, new challenges arise in 3D digital modeling (Barazzetti et al, 2015), such as Historic Building Information Modeling (HBIM)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
