Acta Optica Sinica, Volume. 38, Issue 11, 1110002(2018)
Fusion of GF-3 SAR and Optical Images Based on the Nonsubsampled Contourlet Transform
Figures & Tables(10)
Fig. 1. Original images. (a) 3 m SAR image; (b) 16 m multi-spectral images; (c) 5 m SAR image; (d) 16 m multi-spectral image
Fig. 6. Fusion results of 3 m SAR and 16 m multi-spectral images. (a) Brovey-SAR; (b) IHS-SAR; (c) PCA-SAR; (d) SVR-SAR; (e) Brovey-average NSCT; (f) IHS-average NSCT; (g) PCA-average NSCT; (h) SVR-average NSCT; (i) Brovey-NSCT average; (j) IHS-NSCT average; (k) PCA-NSCT average; (l) SVR-NSCT average
Fig. 7. Fusion results of 5 m SAR and 16 m multi-spectral images. (a) Brovey-SAR; (b) IHS-SAR; (c) PCA-SAR; (d) SVR-SAR; (e) Brovey-average NSCT; (f) IHS-average NSCT; (g) PCA-average NSCT; (h) SVR-average NSCT; (i) Brovey-NSCT average; (j) IHS-NSCT average; (k) PCA-NSCT average; (l) SVR-NSCT average
Table 1. Data information
View tableTable 1. Data information
Satellite Image type Resolution /m Date Product level GF-3 SAR 3 2017-02-15 2 GF-3 SAR 5 2017-08-28 2 GF-1 Multi-spectral 16 2017-07-12 1
Table 2. Objective evaluation of 3 m SAR and 16 m multi-spectral image fusion
View tableTable 2. Objective evaluation of 3 m SAR and 16 m multi-spectral image fusion
Index A GE C CS DS IBrovey SAR 20.34 3.09 0.22 26.57 0.52 Average NSCT 14.58 2.98 0.41 21.97 0.80 NSCT average 3.90 4.29 0.98 3.69 4.45 IHS SAR 12.92 6.09 0.30 24.86 0.94 Average NSCT 11.52 6.04 0.24 25.42 0.65 NSCT average 3.17 5.88 0.84 11.14 1.41 PCA SAR 10.46 6.15 0.39 21.78 1.14 Average NSCT 10.58 6.13 0.31 22.81 0.88 NSCT average 2.62 5.88 0.82 10.67 1.18 SVR SAR 48.25 7.31 0.34 48.84 2.46 Average NSCT 8.17 6.51 0.88 9.33 5.01 NSCT average 4.22 6.27 0.98 3.83 6.76
Table 3. Objective evaluation of 5 m SAR and 16 m multi-spectral image fusion
View tableTable 3. Objective evaluation of 5 m SAR and 16 m multi-spectral image fusion
Index A GE C CS DS IBrovey SAR 13.34 4.30 0.15 15.26 0.57 Average NSCT 11.42 3.58 0.32 12.83 1.00 NSCT average 7.65 4.23 0.76 7.03 3.51 IHS SAR 13.29 5.96 0.16 15.35 0.80 Average NSCT 12.54 5.95 0.28 13.86 1.53 NSCT average 7.48 5.88 0.79 6.79 5.14 PCA SAR 13.53 5.90 0.05 16.78 0.23 Average NSCT 11.23 5.85 0.25 13.95 1.19 NSCT average 7.96 5.84 0.73 8.17 4.16 SVR SAR 34.13 7.23 0.29 29.65 2.45 Average NSCT 19.29 6.60 0.43 17.33 3.12 NSCT average 10.35 6.23 0.74 8.84 5.39
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Wei Yi, Yong Zeng, Zheng Yuan. Fusion of GF-3 SAR and Optical Images Based on the Nonsubsampled Contourlet Transform[J]. Acta Optica Sinica, 2018, 38(11): 1110002
Paper Information
Category: Image Processing
Received: May. 22, 2018
Accepted: Jun. 13, 2018
Published Online: May. 9, 2019
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