中、低空机载成像光谱图像的几何校正研究

Study on image geometric correction of mid-low altitude airborne hyperspectral imagery

本文针对我国上海技术物理所研制的OMIS机载 1 2 8道成像光谱系统试飞所获取的图像、定位和飞行姿态等数据 ,进行了图像几何修正处理和实用软件开发研究。详细分析了该系统所获取的定位与飞行姿态数据及存在的问题 ,并制定了相应的处理方案。根据该系统提供的各种参数 ,建立了航空高光谱图像单因素几何校正模型和几何畸变综合校正方法。对该系统在辽东湾地区试验飞行获取的1 0条航带图像进行几何校正和多航带镶嵌处理 。

Thispaperdiscussestheimagegeometriccorrectionandthesoftwaredevelopmentofthedata,such asimage,positionandattitudeacquiredby 1 2 8 bandairborneOMISsystem ,whichisdevelopedandmanufac turedbytheShanghaiInstituteoftechnologicalphysics.Thedataofpositionandflightattitudeacquiredbythe OMISsystem ,andproblemsexistinginthesystemareanalyzedandcorrespondingmeasuresareproposed .Ac cordingtovariousparametersprovidedbythesystem ,thesinglefactorgeometriccorrectionmodelandthe comprehensivegeometriccorrectionmethodhavebeensetup .Thegeometriccorrectionandthemosaicprocess ingofimagesacquiredbythesystemintestflightinLiaodongBayhaveyieldedanidealeffect.