有理函数模型在单幅卫星影像上人工地物高度求解中的应用

The Application of RFM in Computing the Height of Building on the Mono-satellite Image

高度信息作为人工地物的重要属性信息,在军事和民用上都具有很高的利用价值。从线阵CCD推扫式卫星影像的构像方程入手,推导出该影像上人工地物高度的计算公式,并且得出了无需DEM数据,利用该影像上的像坐标和外方位元素即可较精确地计算出人工地物高度的重要结论。又假设利用有理函数模型该结论同样成立,最后又用大量实验数据进行了证明。研究不但拓宽了有理函数模型的应用范围,而且丰富了摄影测量与遥感领域利用单幅卫星影像进行人工地物高度计算的理论与方法。

As an important attribute information of manpower building, the height information has a great value in use. In the paper, a formula of the building height＇ s measurement is deduced by using the satellite CCD images＇ imaging equation, and a conclusion that the precise building height can be computed without the DEM by using image point coordinates and elements of exterior orientation is drawn. The results of the experiment prove the above hypothesis. The research of this paper not ouly broadens the field of application, but also enriches the theories and methods of building height＇ s measurement by using the Mono-satellite image.