IKONOS卫星遥感影像的精度分析  

Analysis for the Remote Sensing Image Precision of the Satellite IKONOS

作　　者：陈泽民[1] 马荣华[1] 

机构地区：[1]南京大学城市与资源学系,江苏南京210013

出　　处：《遥感技术与应用》2002年第1期46-53,共8页Remote Sensing Technology and Application

摘　　要：介绍了对目前最高分辨率的民用卫星 (IKONOS)遥感影像精度分析的方法及结果 ,并介绍和使用了仿射变换、线性纠正、投影变换和多项式变换等常用的 6种遥感图像纠正的方法 ,对试验区的影像进行了实例测试 ,并对不同方法所产生的残差进行了分析。计算结果表明 ,IKONOS卫星遥感影像的分辨率约为地面 1 .0 0 0 m± 0 .0 1 0 m;测试分析还表明 ,对 IKONOS卫星遥感影像的纠正以采用仿射变换的方法为最佳 ,纠正后的 IKONOS影像可以直接用于 1∶ 1 0 0 0Ways to analyze the remote sensing image precision of the civil satellite IKONOS, which resolution is the highest up to now, are presented. So does the derived result. On the basis of the mentioned above, the six image rectification methods including Helmert, Projective and Affine with different orders are introduced and the residential errors are analyzed. The result of calculation indicates that the resolution of IKONOS remote sensing image is about 1.000±0.010 m. It also makes clear that the Affine is the best method of rectification for IKONOS remote sensing image. The images after being rectified can be used directly to map the relief map scaled by 1∶10 000.

关 键 词：IKONOS 分辨率 纠正方法 精度 卫星遥感影像 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]