天绘一号卫星影像融合及其质量评价

Image Fusion and Quality Assessment of TH-1

以南京市天绘一号卫星影像为实验数据,运用IHS变换、Brovey变换、Wavelet变换、PCA、Pansharp等遥感影像融合方法对其全色和多光谱影像进行融合,并对5种方法的融合结果进行了定性和定量分析。实验结果表明,IHS变换法和Pansharp法能显著增强融合影像的光谱信息,提高融合影像的空间分辨率。

The experiments were carried out to i nd out the suitable ways for TH-1 panchromatic and multispectral image fusion. IHS transform, Brovey transform, Wavelet transform, PCA and Pansharp remote sensing image fusion methods were used in this paper to fuse the image of TH-1 in Nanjing. And the results of 5 methods were analyzed in qualitative and quantitative ways. The experimental results show that the IHS transform and Pansharp method can signii cantly enhance spectrum information of the fusion images and improve the spatial resolution. The two methods are more suitable for the TH-1 image data of experimental area.