AB

A.A. Blokland

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2 records found

Master thesis (2018) - Auke Blokland, Ramon Hanssen, Freek van Leijen, Robert Voûte
The current procedure of the 11 Air Manoeuvre Brigade (11 AMB) is based on a manual non integrated and slow method that uses only outdated and only topographical data. In the procedure are all 5 aspects of a potential landing zone taken into account, the so called 5S: Slope, Shoots, Surface, Size and Security.
This research led to an automated and fast method that uses more actual 3D data (WorldDEM) and delivers better results (validated on the Edesche Heide) than using the current method. The automated procedure has been restricted to two of the five aspects (Slope and Shoots). The aspects Size and Security are discussed in the research but not integrated in the automated method.
Using the new method the Pathfinders can be better prepared for a mission, can perform their tasks faster and can perform their tasks saver. ...
Student report (2017) - Auke Blokland, Robert Voûte, Roderik Lindenbergh, Christiaan Tiberius
From this study can be concluded that using drones equipped with cameras a 3D model van be created of an incident on the rail. From the recordings, a 3D model van be made using photogrammetry. In this model it is possible to measure post distances with an estimated error of less than 1 centimeter. The distances between the laser scanner point cloud and the point cloud created with the drone are in 78% of cases smaller or equal to two centimeters. In order to further reduce the distances between the point clouds more photos from the bottom of the train. ...