UAS / UAV / Drone Articles

A construction company based in North Carolina incorporates new drone photo technology with advanced software to calculate stockpile volumes quickly and efficiently, and in addition, create site topographic data.

This article describes the use of UAS by two PhotoModeler customers in civil engineering and geology work. One customer specializes in rock slope surveys, and the other in environmental monitoring and remediation. They both found that using UAS and PhotoModeler greatly reduced their costs and reduced risk.  See p. 54 in full online magazine.

“Surveying is a time and labor intensive process that requires extremely high levels of accuracy. Two North American surveyors are addressing this challenge by using photogrammetry to increase the number of points surveyed by several orders of magnitude while reducing field time by half or more. Photogrammetry is the process of generating measurements and models from photograph…”

“Many of the cultural heritages in the world have been totally or partly destroyed by natural events and human activities such as earthquake, flood and fire until the present day. Cultural heritages are legacy for us as well; it is also a fiduciary for next generation. To deliver this fiduciary to the future generations, cultural heritages have to be protected and registered. There are different methods for applying this registry but Photogrammetry is the most accurate and rapid method. Photogrammetry enables us to registry cultural heritages and generating 3D photo-realistic models. “

The authors combine data from survey, UAS-based photogrammetry, and satellite to document a remote Buddhist fortress in Bhutan.

The aim of this work is the establishment of an efficient and accurate digital camera calibration method to be used in particular working conditions, as it can be found with our UAV (Unmanned Aerial Vehicle) photogrammetric projects.

Most of the works of civil engineering, and some others applications, need to be designed using a basic cartography with a suitable scale to the accuracy and extension of the plot. The Unmanned Aerial Vehicle (UAV) Photogrammetry covers the gap between classical manned aerial photogrammetry and hand-made surveying techniques because it works in the close-range domain, combining aerial and terrestrial photogrammetry, but also introduces low-cost alternatives.The aim of this work is developing of an accurate and low-cost method to characterize landslides located on the size of a road.

For calibrating the camera, an accurate determination of the interior orientation parameters is needed. For more accurate results, the calibration images should be taken under conditions that are similar to the field samples.The aim of this work is the establishment of an efficient and accurate digital camera calibration method to be used in particular working conditions, as it can be found with our UAV (Unmanned Aerial Vehicle) photogrammetric projects.

“The paper presents work on testing of inflatable wings for unmanned aerial vehicles (UAVs). Inflatable wing history and recent research is discussed. Design and construction of inflatable wings is then covered, along with ground and flight testing”