Original | Bicubic | Yang et. al. | Zeyde et. al. | Our GR | Our ANR | NE+LS | NE+NNLS | NE+LLE |
31.8(0.00) | 31.1(58.57) | 33.1(2.91) | 32.8(0.60) | 33.0(0.76) | 32.9(2.35) | 32.8(22.50) | 33.0(4.18) | |
30.2(0.00) | 29.9(24.90) | 31.7(0.90) | 31.3(0.18) | 31.8(0.24) | 31.6(0.71) | 31.5(6.86) | 31.7(1.28) | |
22.1(0.00) | 22.4(21.26) | 23.6(0.72) | 23.1(0.15) | 23.5(0.21) | 23.4(0.58) | 23.3(5.35) | 23.4(1.00) | |
31.6(0.00) | 31.1(16.73) | 32.2(0.86) | 32.1(0.19) | 32.3(0.25) | 32.2(0.69) | 32.1(6.45) | 32.2(1.20) | |
26.5(0.00) | 26.3(21.60) | 27.9(0.87) | 27.4(0.18) | 27.8(0.24) | 27.6(0.68) | 27.6(6.43) | 27.7(1.21) | |
Average PSNR | 28.42 (0.00) | 28.15 (28.61) | 29.69 (1.25) | 29.34 (0.26) | 29.69 (0.34) | 29.55 (1.00) | 29.47 (9.52) | 29.61 (1.77) |
Scaling factor | x4 |
High-res. patch size | 12 x 12 |
Feature upsampling factor | 4 |
Feature dim. (original) | 576 |
Feature dim. (reduced) | 30 |
Dictionary size | 1024 |
Dictionary maximal sparsity | 3 |
Dictionary iterations | 20 |
Duration | 771.6 seconds |
# of images | 5 |
Interpolation Kernel | bicubic |