高分二号卫星影像融合技术研究  

Research on Image Fusion Technology of GF-2 Satellite

作　　者：肖昶[1] 余晓敏[1] 韩逸飞[1] 

机构地区：[1]湖北省基础地理信息中心,湖北武汉430074

出　　处：《地理空间信息》2018年第6期13-16,共4页Geospatial Information

基　　金：国家科技支撑计划资助项目(2015BAJ05B01)

摘　　要：针对高分二号卫星影像的融合方法展开研究,选取Pansharp融合、Gram-Schmidt光谱锐化、HPF融合、主成分变换、Brovey变换5种融合方法进行融合对比实验。结果表明,Pansharp融合法和Gram-Schmidt光谱锐化法效果最优,其中Pansharp融合影像的清晰度和锐化程度尤其高,Brovey变换法虽然极大地提高了融合影像的空间分辨率,但会存在色彩严重失真的情况,HPF融合法和主成分变换法融合效果相对较差。In this paper, we studied the image fusion technology of GF-2 satellite. We selected five fusion methods for fusion and contrast experiment, such as Pansharp, Gram-Schmidt, HPF, PCA, and Brovey, and analyzed and discussed the results of image fusion. The result shows that the five algorithms are listed in descending order by the fusion effects of GF-2 satellite images, such as Pansharp, Gram-Schmidt, Brovey, HPF, PCA.

关 键 词：高分二号 影像融合 Pansharp GRAM-SCHMIDT 融合效果评价 

分 类 号：P237[天文地球—摄影测量与遥感]