Aerospace linear array stereo image positioning method based on optical axis position recording data

• Main Authors: WANG JIANRONG, LU XUELIANG, LYU YUAN, YANG XIUCE, MIAO YUZHE, HU YAN
• Format: Patent
• Language: Chinese; English
• Published: 17.12.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention relates to an aerospace linear array stereo image positioning method based on optical axis position recording data, and belongs to the technical field of photogrammetry and remote sensing. According to the satellite in-orbit operation state and practical experience, for the situation that the three-dimensional image positioning precision continuously becomes poor as time goes on after spaceflight linear array three-dimensional camera parameters are calibrated in orbit, the reason that the positioning precision becomes poor is deeply analyzed; the auxiliary data provided by effective loads such as an on-satellite optical axis position recorder is used for correcting the camera on-orbit calibration parameter, the applicability of the camera calibration parameter is effectively enhanced, the calibration frequency is reduced, and the positioning precision of a stereoscopic image is improved. 本发明涉及基于光轴位置记录数据的航天线阵立体影像定位方法，属于摄影测量与遥感技术领域。本发明根据卫星在轨运行状态和实践经验，针对航天线阵立体相机参数在轨标定后，立体影像定位精度随着时间推移持续变差的情况，深入分析了定位