Research Article
Cardiac Magnetic Resonance Images Superresolution via Multichannel Residual Attention Networks
Table 2
Average PSNR/SSIM of various SSIR methods; the best and second-best results are in bold and italics.
| Algorithm | Scale | Set 5 | Set 14 | Urban 100 | PSNR | SSIM | PSNR | SSIM | PSNR | SSIM |
| Bicubic [6] | 2× | 33.69 | 0.931 | 30.25 | 0.870 | 26.88 | 0.841 | A+ [27] | 2× | 36.60 | 0.955 | 32.32 | 0.906 | 29.25 | 0.895 | SCN [28] | 2× | 36.58 | 0.954 | 32.35 | 0.905 | 29.52 | 0.897 | SRCNN [9] | 2× | 36.72 | 0.955 | 32.51 | 0.908 | 29.53 | 0.896 | FSRCNN [10] | 2× | 37.05 | 0.956 | 32.66 | 0.909 | 29.88 | 0.902 | VDSR [11] | 2× | 37.53 | 0.959 | 33.05 | 0.913 | 30.77 | 0.914 | DRCN [12] | 2× | 37.63 | 0.959 | 33.06 | 0.912 | 30.76 | 0.914 | LapSRN [14] | 2× | 37.52 | 0.959 | 33.08 | 0.913 | 30.41 | 0.910 | DRRN [29] | 2× | 37.74 | 0.959 | 33.23 | 0.914 | 31.23 | 0.919 | MCRN (ours) | 2× | 37.88 | 0.961 | 33.63 | 0.919 | 31.27 | 0.919 |
| Bicubic [6] | 3× | 30.41 | 0.869 | 27.79 | 0.775 | 24.46 | 0.735 | A+ [27] | 3× | 32.62 | 0.909 | 29.15 | 0.820 | 26.05 | 0.799 | SCN [28] | 3× | 32.62 | 0.908 | 29.16 | 0.818 | 26.21 | 0.801 | SRCNN [9] | 3× | 32.78 | 0.909 | 29.32 | 0.823 | 26.25 | 0.801 | FSRCNN [10] | 3× | 33.18 | 0.914 | 29.37 | 0.824 | 26.43 | 0.808 | VDSR [11] | 3× | 33.67 | 0.921 | 29.78 | 0.832 | 27.14 | 0.829 | DRCN [12] | 3× | 33.83 | 0.922 | 29.77 | 0.832 | 27.15 | 0.828 | LapSRN [14] | 3× | 33.82 | 0.922 | 29.87 | 0.832 | 27.07 | 0.828 | DRRN [29] | 3× | 34.03 | 0.924 | 29.96 | 0.835 | 27.53 | 0.764 | MCRN (ours) | 3× | 33.99 | 0.925 | 30.28 | 0.844 | 27.27 | 0.830 |
| Bicubic [6] | 4× | 28.43 | 0.811 | 26.22 | 0.715 | 23.14 | 0.658 | A+ [27] | 4× | 30.32 | 0.860 | 27.34 | 0.751 | 24.34 | 0.721 | SCN [28] | 4× | 30.41 | 0.863 | 27.39 | 0.751 | 24.52 | 0.726 | SRCNN [9] | 4× | 30.50 | 0.863 | 27.52 | 0.753 | 24.53 | 0.725 | FSRCNN [10] | 4× | 30.72 | 0.866 | 27.61 | 0.755 | 24.62 | 0.728 | VDSR [11] | 4× | 31.35 | 0.883 | 28.02 | 0.768 | 25.18 | 0.754 | DRCN [12] | 4× | 31.54 | 0.884 | 28.03 | 0.768 | 25.14 | 0.752 | LapSRN [14] | 4× | 31.54 | 0.885 | 28.19 | 0.772 | 25.21 | 0.756 | DRRN [29] | 4× | 31.68 | 0.888 | 28.21 | 0.772 | 25.44 | 0.764 | MCRN(ours) | 4× | 31.67 | 0.887 | 28.45 | 0.783 | 25.25 | 0.759 |
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