orthorectification and geometric correction
Dubbo Dc, NSW
To remove the sensor and terrain related distortions from raw aerial imagery, orthorectification is used. Orthorectification in photogrammetry includes the following inputs for processing viz. sensor information, orbital parameters, ground control, and elevation information. Geometric correction is done when there is inadequate information for orthorectification. Sensor characteristics, orbital parameters, rational functions, or elevation information are not relied upon in Geometric correction.
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