Patent ID: 9154717
Filing Date: 2015-10-06
Classification: G01C,G03B,H04N

Abstract:
1. A method for correcting a distortion, caused by a forward flight movement, in an aerial photograph that is taken with an aerial camera from a flying object, the method comprising: the aerial photograph being captured by a surface sensor of the aerial camera, the surface sensor having a multiplicity of photosensitive pixels, and sensor lines being exposed at different exposure times with a slit diaphragm shutter displaced over a projected image, so that individual sensor lines each sense a terrain strip of overflown terrain at different exposure times; each of the individual sensor lines being assigned a flight altitude, current at an exposure time, above the terrain strip sensed by the individual sensor line; and there being determined, separately for each individual sensor line, a compensation factor that depends on an air speed of the flying object, on a focal length of the aerial camera and on the flight altitude assigned to the sensor line, and the distortion in the aerial photograph being corrected in linewise fashion with a compensation factor.