Original | Bicubic | Yang et. al. | Zeyde et. al. | Our GR | Our ANR | NE+LS | NE+NNLS | NE+LLE |
23.2(0.00) | 23.5(142.08) | 23.5(4.43) | 23.5(0.73) | 23.6(0.99) | 23.5(3.55) | 23.5(37.78) | 23.6(6.60) | |
26.2(0.00) | 26.4(150.43) | 26.8(7.62) | 26.8(1.14) | 26.7(1.56) | 26.7(6.10) | 26.7(66.49) | 26.7(11.47) | |
24.4(0.00) | 24.8(172.66) | 25.0(4.72) | 24.9(0.73) | 25.0(1.02) | 24.9(3.83) | 24.9(41.84) | 25.0(7.15) | |
26.6(0.00) | 27.0(40.91) | 27.1(1.82) | 27.0(0.27) | 27.1(0.39) | 27.0(1.45) | 27.0(16.08) | 27.1(2.71) | |
23.1(0.00) | 23.9(60.28) | 24.0(1.60) | 23.8(0.25) | 24.0(0.37) | 23.9(1.31) | 23.8(13.92) | 24.0(2.41) | |
32.8(0.00) | 33.1(23.74) | 33.5(1.38) | 33.5(0.20) | 33.6(0.31) | 33.5(1.08) | 33.5(11.74) | 33.6(2.02) | |
27.2(0.00) | 28.2(88.77) | 28.4(3.29) | 28.1(0.52) | 28.5(0.73) | 28.3(2.64) | 28.2(28.43) | 28.4(4.92) | |
31.2(0.00) | 32.0(30.58) | 33.2(1.82) | 32.3(0.28) | 33.2(0.41) | 33.2(1.47) | 32.9(15.95) | 33.2(2.72) | |
31.7(0.00) | 32.6(78.71) | 33.0(4.79) | 32.6(0.75) | 33.1(1.07) | 33.0(3.99) | 32.8(40.96) | 33.0(7.17) | |
27.0(0.00) | 27.8(123.74) | 27.9(4.75) | 27.6(0.74) | 27.9(1.03) | 27.9(3.82) | 27.7(41.18) | 27.9(7.16) | |
29.4(0.00) | 30.7(130.50) | 31.1(7.17) | 30.4(1.07) | 31.1(1.49) | 30.9(5.77) | 30.8(63.26) | 30.9(10.84) | |
32.4(0.00) | 33.3(75.56) | 34.1(4.75) | 33.2(0.73) | 33.8(1.01) | 33.9(3.83) | 33.6(41.42) | 33.8(7.15) | |
23.7(0.00) | 25.0(107.79) | 25.2(5.67) | 24.6(0.96) | 25.0(1.32) | 25.1(4.92) | 24.8(49.80) | 24.9(9.40) | |
26.6(0.00) | 28.0(129.78) | 28.5(4.19) | 27.9(0.65) | 28.4(0.89) | 28.3(3.35) | 28.1(36.41) | 28.3(6.28) | |
Average PSNR | 27.54 (0.00) | 28.31 (96.82) | 28.67 (4.14) | 28.31 (0.64) | 28.65 (0.90) | 28.59 (3.36) | 28.44 (36.09) | 28.60 (6.29) |
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 | 7415.5 seconds |
# of images | 14 |
Interpolation Kernel | bicubic |