Original | Bicubic | Yang et al. | Zeyde et al. | Our GR | Our ANR | NE+LS | NE+NNLS | NE+LLE | Our A+ (0.5mil) | Our A+ | Our A+ (16atoms) |
33.9(0.00) | 34.3(86.97) | 35.1(4.58) | 34.9(0.58) | 35.1(0.84) | 35.0(3.10) | 34.8(30.89) | 35.1(5.86) | 35.3(0.91) | 35.2(0.92) | 35.1(0.74) | |
32.6(0.00) | 34.1(36.70) | 34.6(1.43) | 33.9(0.16) | 34.6(0.28) | 34.4(0.96) | 34.3(9.44) | 34.6(1.78) | 35.3(0.27) | 35.5(0.29) | 34.8(0.25) | |
24.0(0.00) | 25.6(34.01) | 25.9(1.10) | 25.0(0.14) | 25.9(0.23) | 25.8(0.76) | 25.6(7.54) | 25.8(1.44) | 26.6(0.23) | 27.2(0.23) | 26.2(0.20) | |
32.9(0.00) | 33.2(25.90) | 33.6(1.33) | 33.5(0.17) | 33.6(0.28) | 33.5(0.91) | 33.5(8.87) | 33.6(1.66) | 33.8(0.27) | 33.8(0.28) | 33.7(0.23) | |
28.6(0.00) | 29.9(30.54) | 30.4(1.28) | 29.7(0.17) | 30.3(0.30) | 30.2(0.90) | 29.9(8.70) | 30.2(1.68) | 30.9(0.27) | 31.2(0.27) | 30.6(0.23) | |
Average PSNR | 30.39 (0.00) | 31.42 (42.82) | 31.90 (1.94) | 31.41 (0.24) | 31.92 (0.38) | 31.78 (1.33) | 31.60 (13.09) | 31.84 (2.48) | 32.39 (0.39) | 32.59 (0.40) | 32.07 (0.33) |
Scaling factor | x3 |
High-res. patch size | 9 x 9 |
Feature upsampling factor | 3 |
Feature dim. (original) | 324 |
Feature dim. (reduced) | 30 |
Dictionary size | 1024 |
Dictionary maximal sparsity | 3 |
Dictionary iterations | 20 |
Duration | 554.5 seconds |
# of images | 5 |
Interpolation Kernel | bicubic |