By Nick Gilbert
A 3D imaging system has been designed by researchers at the University of Granada that can scan 3D models of historical buildings based on data obtained from an unmanned aerial vehicle (UAV). It is the first 3D imaging system to integrate UAV functions, virtual representation of models and image-based 3D modeling technologies to generate a realistic 3D object modeling from images.
The project’s ultimate target is to achieve a 3D model of a historical building façade, similar to a cathedral. The researchers intend carrying out this project with improved cost efficiency and reduced human maneuver. Due to its potential to rapidly and efficiently navigating through abrupt areas, avoiding large obstacles and generating information from multiple sensors, UAVs has wide application in several research fields, thus far.
The demanding UAVs autonomy enables an operator to change the battery to continue its operation. The object can therefore be efficiently scanned in record time without involving any scaffolding or cranes.
3D-digitalization technologies facilitate achieving realistic modeling of 3D objects based on imagery from stereoscopic cameras, sensors, and diverse-angled- multiple geolocated images. The virtual reality technologies generate real time high-quality 3D images.
The significant application of this technology includes rapid scanning of a façade with increased precision than 3D scanners. To capture minute details, this device contacts the object up to a few inches apart.
Basically intended for façade 3D imaging, this project can implement this new technology to any kind of architectural model such as buildings, monuments. For both construction operation, objects are geolocalized and digitalization is performed in vertical parameters.