SPOT5与ERS-2卫星影像的联合立体定位

本文将SPOT5与ERS-2卫星影像联立构成一组立体像对,并通过立体定位的方式获取了地面点的三维坐标。根据本文立体像对前方交会的特殊几何图形,推导了立体定位理论精度的计算公式,并利用实验验证了公式的正确性,同时分析了影响立体定位精度的主要因素。实验结果表明,联合具有一定重叠度的SPOT5和ERS-2影像进行立体定位具有很强的可行性,其精度已可以满足部分测绘任务的要求。

Stereoscopic positioning with SPOT5 and ERS-2 satellite images

In this paper,the stereoscopic pair composed of SPOT5 and ERS-2 satellite images has been used to achieve 3D coordinates of ground points.And the equations to calculate root mean square error of stereo positioning have been deduced according to special intersection conditions,which are proved correct by experiment results and used to analyze the major aspects that affected stereo positioning accuracy.Experimental results show that it is feasible to construct stereoscopic pair with SPOT5 and ERS-2 satellite images for stereo mapping.