“…The use of drones to collect visual information for the condition of arable crops is one of the modern activities as part of precision agriculture. The advantages and disadvantages of this method of crop monitoring have been known (Ekielski A. et al, 2017), (Van der Wal et al, 2013) and the advantages of small drones equipped with onboard sensors over satellites have been pointed out in details (Biserkov, 2017). For complex environmental tasks, quadcopters have been the most appropriate, (Rao Mogili U.…”