最高、最低点重叠度计算的分析研究

Analysis and Study on the Calculation of Overlap Between the Highest and Lowest Points

文章分析摄影中心与基准面高程、最高点高程、最低点高程以及相对航高之间的几何关系,在已知基准面所设重叠度的前提下,分别推导了最高点和最低点相应重叠度的计算公式,并通过绘制几何结构图及实际飞行影像数据对分析结果进行验证。实验证明该公式推导正确,提高了两者的计算精度,保障了航测参数设置的准确性。

This paper analyzes the geometric relationship between the photography center and the datum elevation, the highest point elevation, the lowest point elevation and the relative navigation height. In this paper, the calculation formulas of the corresponding overlap degree of the highest point and the lowest point are deduced respectively, and the analysis results are verified by drawing the geometric structure diagram and the actual flight image data. The experimental results show that the derivation of the formula is correct, which improves the calculation accuracy of the two methods and ensures the accuracy of the setting of aerial survey parameters.