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Automatic on-orbit geometric calibration framework for geostationary optical satellite imagery using open access data
- Dong, Yang, Fan, Dazhao, Ma, Qiuhe, Ji, Song, Ouyang, Huan
- International journal of remote sensing 2019 v.40 no.16 pp. 6154-6184
- calibration, geometry, image analysis, remote sensing, satellites, spatial data
- Due to a variety of factors, long-term on-orbit geometric calibrations must be performed on the geostationary optical satellite to meet the subsequent high-precision geometric processing requirements. Designing a fully automatic on-orbit geometric inspection and calibration process has great application value. In this paper, we use open-access geographic information data to achieve a more robust automatic on-orbit geometric calibration for the imaging characteristics of the geostationary optical satellite. Experiments with the high-resolution geostationary optical satellite GaoFen4. Results show that the process designed in this paper enables automatic on-orbit geometric calibration of the geostationary optical satellite and obtain high-accuracy calibration parameters, thus effectively improving the geometric positioning accuracy of satellite imagery.