3.3 Imagery standards
105
Fig. 3.28. Opticallayout of a pushbroom sensor (Albertz and Kreiling 1989)
The frame camera produces a matrix of image pixels. Apart from some rare exceptions, the camera is flown on an aircraft.
Fig. 3.29. Frame camera image and projection centre (IS057 2003)
c'
Calibrated focallength, given in [rum]
PPA'
Principal point of autocollimation, given in [mm] in the image coordinate system
0'
Projection centre, given in [m] in the object coordinate system
Paper andfilm scanners convert paper or film originals to a grid values matrix.
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