测绘通报 ›› 2019, Vol. 0 ›› Issue (6): 5-10.doi: 10.13474/j.cnki.11-2246.2019.0174

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Comparison of diffirent fusion methods and their performance evaluation to high spatial resolution remote sensing data of GF

SHAO Yakui1, ZHU Changming1, ZHANG Xin2, SHEN Qian1   

  1. 1. College of Geography and Geomatics, Jiangsu Normal University, Xuzhou 221116, China;
    2. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2019-01-08 Revised:2019-03-25 Online:2019-06-25 Published:2019-07-01

Abstract:

Choosing an appropriate fusion method is conducive to better serving the practice and scientific research of remote sensing image. This paper tries to find the best fusion method for high resolution remote sensing images of China satellite at the basis of summarizing the existing image pixel-level fusion algorithms. Pansharp, Gram-Schmidt, HPF, Ehlers, Subtractive, Modified IHS transform, Brovey, PCA, NND and etc. methods were selected to fuse the panchromatic and multispectral data of high-resolution images of China satellites, and then 9 fusion results were evaluated qualitatively and quantitatively. The results show that Pansharping algorithm are the best both in the visual effect and the quantitative indicators of image quality evaluation. The results of Gram-Schmidt, NNDiffuse, Subtractive and HPF have the clearest boundary. Moreover, the result of Modified IHS, PCA and Brovey have obvious color distortion. The result of NND is more prominent in the visible band and Gram-Schmidt performs best in near infrared band. The information presented in this paper can provide technical reference for the application and research of GF-1 satellite data in the future.

Key words: GaoFen-1(GF-1), image fusion, quality assessment, remote sensing

CLC Number: