geometric correction

The transformation of image data, such as Landsat data, to match spatial relationships as they are on the Earth. Includes correction for band-to-band offsets, line length, Earth rotation, and detector-to-detector sampling delay. For Landsat, a distinction is made between Data that have been geometrically corrected using systematic, or predicted, values (Level-1G) and data that have been geometrically corrected using more precise Ground control point data (orthorectified, Level-1G-Terrain).

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