Chinese Optics, Volume. 16, Issue 5, 1056(2023)
Multispectral demosaicing method based on an improved guided filter
Fig. 1. (a) Binary tree splitting process and (b) arrangement of Five-band MSFA
Fig. 6. Comparison of Balloons images reconstructed by different algorithms
Fig. 7. Comparison of CD images reconstructed by different algorithms
Fig. 8. Comparison of party images reconstructed by different algorithms
Table 1. Objective evaluation metrics of the three methods on the CAVE dataset
View tableView in ArticleTable 1. Objective evaluation metrics of the three methods on the CAVE dataset
CAVE sRGB PSNR/dB sRGB SSIM CIEDE 2000 GF APMID Pro GF APMID Pro GF APMID Pro Balloons 41.62 42.68 43.11 0.9859 0.9916 0.9936 1.18 1.06 0.99 Clay 37.33 37.63 38.69 0.8758 0.8817 0.8852 1.07 0.94 0.89 Beers 41.57 42.18 43.52 0.9816 0.9868 0.9894 1.25 1.28 1.07 Lemons 42.91 42.87 42.91 0.9749 0.9805 0.9822 1.11 1.08 1.03 Peppers 42.14 42.08 42.52 0.9715 0.9801 0.9805 0.89 0.78 0.73 Feathers 35.64 35.94 35.99 0.9413 0.9593 0.9614 2.30 2.10 2.04 Flowers 38.93 41.18 42.50 0.9523 0.9778 0.9824 1.26 0.91 0.83 Paints 36.16 34.88 36.32 0.9696 0.9729 0.9797 2.40 2.43 2.17 Apples 45.24 45.10 45.68 0.9838 0.9875 0.9886 0.77 0.75 0.70 Toys 38.83 41.29 42.77 0.9666 0.9845 0.9891 1.24 0.90 0.80 Avg 40.04 40.58 41.40 0.9603 0.9703 0.9732 1.35 1.22 1.13
Table 2. Objective evaluation metrics of the three methods on the TokyoTech dataset
View tableView in ArticleTable 2. Objective evaluation metrics of the three methods on the TokyoTech dataset
TokyoTech sRGB PSNR/dB sRGB SSIM CIEDE 2000 GF APMID Pro GF APMID Pro GF APMID Pro Butterfly 37.53 38.95 40.44 0.9596 0.9678 0.9810 1.60 1.42 1.17 Butterfly3 38.42 42.94 41.99 0.9487 0.9777 0.9793 1.37 0.91 0.84 Butterfly4 40.63 40.73 42.37 0.9691 0.9590 0.9827 1.12 1.23 0.87 CD 32.20 32.78 32.87 0.9450 0.9580 0.9629 1.97 1.72 1.65 Character 37.74 37.45 38.14 0.9673 0.9736 0.9835 1.83 1.94 1.73 Cloth 34.18 35.00 35.87 0.9321 0.9481 0.9573 3.34 3.22 2.75 Color 39.22 38.62 41.36 0.9782 0.9630 0.9895 1.74 2.00 1.47 Colorchart 42.83 44.79 47.80 0.9819 0.9847 0.9941 0.92 0.77 0.55 Fan2 32.68 33.29 34.09 0.9257 0.9426 0.9629 2.63 2.34 2.04 Party 32.79 33.45 35.78 0.9366 0.9509 0.9693 2.06 1.66 1.36 Avg 36.82 37.80 39.07 0.9544 0.9625 0.9762 1.86 1.72 1.44
Table 3. Running times of different methods on the two datasets
(s) View tableView in ArticleTable 3. Running times of different methods on the two datasets
(s) 数据集 GF APMID Pro CAVE 1.49 0.71 1.33 TokyoTech 1.36 0.56 1.29
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Hai-chao QI, Yan-song SONG, Bo ZHANG, Zong-lin LIANG, Gang-qi YAN, Jia-yin XUE, Yi-qun ZHANG, Bin REN. Multispectral demosaicing method based on an improved guided filter[J]. Chinese Optics, 2023, 16(5): 1056
Category: Original Article
Received: Nov. 13, 2022
Accepted: --
Published Online: Oct. 27, 2023
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