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ASSESSMENT OF GEOMETRIC ACCURACY OF SATELLITE IMAGES OBTAINED BY THE EARTH REMOTE SENSING SYSTEMS IN VARIOUS RANGES OF THE ELECTROMAGNETIC SPECTRUM

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To assess the reliability of space images, special studies should be made of the measurement and visual properties of images obtained by spacecraft surveying systems in various ranges of the electromagnetic spectrum. The need for geometric processing of raw space survey materials to produce highprecision products is due to the influence of distortions that arise during the formation of images under the influence of various factors. Features of estimation of geometrical accuracy of space survey materials are considered. A mathematical description of the fundamentals of the methodology used for estimating the coordinate-measuring characteristics of images obtained by the target equipment of space remote sensing systems of the Earth is given. Several problems arising in the estimation of geometrical accuracy of images, limitations and features of the methodology chosen for implementation are considered. Ways of overcoming the problems of estimating the coordinate-measuring characteristics are proposed. A method for determining sufficiency of a sample of test objects is described. Recommendations and requirements for reference points selection are given. The ways of further development of the technology of coordinatemeasuring characteristics estimation are specified.

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