| 高分辨率光学遥感卫星在轨几何定标现状与展望 |
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| 引用本文： | 王密,田原,程宇峰.高分辨率光学遥感卫星在轨几何定标现状与展望[J].武汉大学学报(信息科学版),2017,42(11):1580-1588. |
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| 作者姓名： | 王密 田原 程宇峰 |
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| 作者单位： | 1.武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉, 430079 |
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| 基金项目： | 国家自然科学基金91438203国家自然科学基金91638301国家重点研发计划2016YFB0501402 |
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| 摘 要： | 光学遥感卫星影像在轨几何定标是确保影像几何质量的必要环节。首先介绍了光学卫星在轨几何定标方法的研究现状；然后，对于当前主流的基于地面几何检校场的在轨几何定标方法，结合光学卫星地面分辨率不断提高的发展趋势，阐述了其受限于对参考影像的依赖而存在的问题；最后，论述了无需地面定标场的在轨自主几何定标的发展趋势，并提出了多种基于多角度交叉约束成像的在轨自主几何定标方法构想。
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| 关 键 词： | 光学遥感卫星 在轨几何定标 几何检校场 自主几何定标 |
| 收稿时间： | 2017-10-10 |
Development of On-orbit Geometric Calibration for High Resolution Optical Remote Sensing Satellite |
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| Affiliation: | 1.State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China2.Collaborative Innovation Center of Geospatial Technology, Wuhan 430079, China |
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| Abstract: | On-orbit geometric calibration of remote sensing satellites is essential to the geometric quality of its imagery. This paper reviews the current status and progress in optical satellite on-orbit geometric calibration technology, based on ground calibration site and space resection theory. The construction status of calibration sites and calibration results of SPOT, IKONOS, GeoEye, ZY-3 and other mainstream high-resolution optical satellites are summarized. problems existing in current calibration methods caused by dependence on reference images of a calibration site are analyzed considering improvements in the resolution of optical satellite imagery and timeliness requirements of on-orbit calibration, For the demand of camera calibration without the constraint of ground test site, the existing work in the field of computer vision and block adjustment are discussed. The merits and faults of each self-calibration method are compared, and a self-calibration method for optical satellites based on multiple-angle imaging is introduced, and several self-calibration modes are proposed. |
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