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简要叙述高分辨率影像的严格几何模型,建立影像姿态角常差检校模型。通过对来自SPOT-5, QuickBird两种不同影像的试验,验证影像姿态角常差的存在。利用单个控制点检校出的常差值对角元素进行补偿后,明显提高影像的对地目标定位精度,目标点平面位置可达到4 pixels的精度水平。

The rigorous geometric model based on the collinearity equations is the basic model for object positioning of high resolution remotely sensed imagery. The location precision is strongly relevant to the ephemeris and attitude data. However, the quality of attitude data acquired by modern stellar camera is still difficult to satisfy the requirement of direct location. In this paper a calibration model of constant angular error is introduced to enhance attitude precision by few ground control points (GCP). The...