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多源高空间分辨率遥感图像平差方法

DOI: 10.6046/gtzyyg.2013.02.04, PP. 21-26

Keywords: 高空间分辨率遥感图像,多源传感器,有理多项式系数(RPC),平差模型

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Abstract:

多源高空间分辨率遥感图像的综合分析处理对地表测绘、灾害应急响应、军事侦察等领域具有重要意义,而如何获取较高精度的地面点坐标是多源遥感图像综合分析与应用所需解决的首要问题。为解决该问题,在有理多项式系数(rationalpolynomialcoefficient,RPC)的理论框架下,构建了基于RPC的多源遥感图像平差模型,用于改正初始RPC模型的系统误差,以得到较高精度的定位结果。为验证本文提出的平差方法的正确性,采用IKONOS和GeoEye-1全色立体像对进行了联合平差试验。结果表明,基于RPC的多源遥感图像联合平差模型是正确的,对控制点依赖较少,定位精度较单源立体像对平差的定位精度高,具有较大的应用潜力。

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