METHOD FOR CALIBRATING ALIGNMENT ERRORS OF AN EARTH OBSERVATION SYSTEM MAKING USE OF SYMMETRICAL EXPOSURES
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United States of America Patent
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Issued Date -
Jul 4, 2013
app pub date -
Jan 3, 2013
filing date -
Jan 3, 2012
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Abandoned
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Abstract
According to a first aspect, the invention relates to a method for calibrating alignment errors of a sight mark of an on-board imaging system inside an observation satellite, wherein a reference image of a scene is compared with a secondary image of the scene acquired by the imaging system,
- characterized in that the reference image and the secondary image consist of exposures of the scene acquired by the imaging system, the direction of motion of the observation satellite during the exposure of the secondary image being opposite to the direction of motion of the observation satellite during the exposure of the reference image.
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