1. Institute of Applied Informatics, Wrocław University of Technology, Wyb. S. Wyspiańskiego 27, 50-370 Wrocław, Poland
2. Faculty of Environmental Engineering and Geodesy, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25/27, 50-375 Wrocław, Poland
3. Wrocław University of Technology, Faculty of Electronics, Wyb. S. Wyspiańskiego 27, 50-370 Wrocław, Poland