In the project FreeLine we develop an automated system that acquires airborne imagery using an unmanned aerial vehicle (UAV). These images are used to metrically reconstruct the power line including its environment. By semantic classification of the components of the reconstruction and having a metric scale, undercuts of the clearance distance between the power line and surrounding vegetation can be detected and highlighted for further maintenance work. Further, the acquired data serves as basis for simulation. This includes the extent of the power lines at different load and ambient temperature.
FreeLine is a collaborative research project at Graz University of Technology (Austria), funded by the Austrian Research Promotion Agency (FFG) and OMICRON electronics GmbH as Bridge1 project 843450.