Publication Date:
2011-08-16
Description:
One criterion of image quality is its geometric similarity to the control test. The ability of television, phototelevision, phototelegraphic, and other systems to transmit geometrically similar images is characterized by the geometric distortion coefficient. Linear distortions result from the inaccuracy of scanning mechanism element assembly, and distortions can be minimized during adjustment operations or may be easily compensated during image reception. Brief descriptions are given of the possible sources of nonlinear distortions which arise in these devices due to the scanning mechanism, objective distortion, or the nodding mirror.
Keywords:
EARTH RESOURCES AND REMOTE SENSING
Type:
Space Iconics (NASA-TT-F-798); p 48-51
Format:
text
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