四元数火星快车立体测绘影像光束法平差  

Bundle adjustment of Mars express HRSC line sensor imagery based on Quaternion

作　　者：耿迅[1] 徐青[1] 邢帅[1] 蓝朝桢[1,2] 侯一凡[1] 

机构地区：[1]信息工程大学地理空间信息学院,郑州450052 [2]北京理工大学深空探测技术研究所,北京100081

出　　处：《测绘科学》2016年第1期23-27,38,共6页Science of Surveying and Mapping

基　　金：国家重点基础研究发展计划(973计划)项目(2012CB720000);国家自然科学基金项目(41371436;41401533)

摘　　要：针对火星表面缺乏控制点数据、影像匹配难度大,使用传统欧拉角解算时收敛性难以保证的问题,该文提出基于四元数以及定向片模型的HRSC线阵影像光束法平差方法:基于SIFT特征提取算子并结合影像金字塔分层匹配策略设计连接点自动生成算法,并对火星表面多个地形区域进行了试验,结果表明:设计的连接点自动生成算法高效、实用,利用该方法可显著提高欧洲火星快车HRSC线阵影像的定位精度。Aiming at the deficiency of Euler angles in expressing the attitude parameters of exterior orientation due to the lack of control points on Mars surface for image matching,the paper set up the bundle adjustment model based on quaternion through collinearity equation linearization.In order to perform the bundle adjustment of HRSC line sensor imagery of Mars Express,orientation fix model was used.The unknown exterior orientation parameters were firstly solved in orientation fix for interpolating the exterior orientation parameters of every scan line.Then SIFT algorithm combined with image pyramid matching strategy was used to generate tie points automatically.Finally,experiment results showed that the accuracy of bundle adjustment of HRSC line sensor imagery could be improved greatly by the propose method.

关 键 词：火星 火星快车 HRSC 线阵推扫式影像 光束法平差 定向片 四元数 

分 类 号：P207[天文地球—测绘科学与技术] P236