Flight altitude controller, unmanned aerial vehicle, flight altitude control method and flight altitude control program

摘要

It is possible to automatically adjust the flying height of the unmanned aerial vehicle and to appropriately photograph an object on the ground as a subject. The server device (1) includes a mark recognition unit (12) that identifies a plurality of objects located on the ground from a video captured by the camera (22) as a plurality of marks, and an area calculation unit (13) that calculates a plurality of objects And a flying height control unit (15) that controls the flying height of the unmanned aerial vehicle (2) to maximize the area of the polygon.