【摘要】 为了解决传统的摄影测量空间后方交会法确定外方位元素,采用间接平差数学模型需要多个地面控制点的问题,提出空间后方交会的条件平差数学模型,该方法利用具有一定精度的外方位元素的初始值作为观测值,采用1~2个控制点就可以解算出6个外方位元素,经实验满足遥感影像几何纠正的精度要求,可实现稀少控制点下的影像精确纠正。更多还原

【Abstract】 For resolving the question that the traditional RS image orientation methods must depend on certain number of ground control points (GCP), precise orientation of RS image can not be done in the regions with few GCPs. So a model for the solution of satellite image elements of exterior orientation is established and analyzed it’s precision. The key technique for precise orientation of RS image in 1-2 GCP scarce region is to obtain the high-precision 6 elements of exterior orientation at the imaging moment. The experiments prove the model is suitable for accuracy of image rectification.更多还原