US Patent 11868146 Photographing device and method

A flying drone for shelf label checking includes a flying mechanism, a camera, and a camera interface configured to transmit and receive data to and from the camera. A flight control interface is configured to transmit and receive data to and from the flying mechanism. A processor is configured to acquire a first image of an object from a first distance with the camera, then extract an object region for the object from the first image. The processor then sets a flight path based on the object region and controls the flying mechanism to fly the camera along the flight path to a second distance that is closer to the object than the first distance. A second image of the object is then acquired from the second distance with the camera.