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) |
23.2(0.00) | 23.5(144.19) | 23.5(4.21) | 23.5(0.48) | 23.6(0.83) | 23.5(2.80) | 23.5(27.78) | 23.6(5.36) | 23.6(0.83) | 23.6(0.83) | 23.6(0.67) | |
26.2(0.00) | 26.4(152.74) | 26.8(7.31) | 26.8(0.87) | 26.7(1.48) | 26.7(4.96) | 26.7(49.45) | 26.7(9.91) | 26.7(1.44) | 26.5(1.44) | 26.6(1.19) | |
24.4(0.00) | 24.8(173.34) | 25.0(4.67) | 24.9(0.52) | 25.0(0.89) | 24.9(3.07) | 24.9(30.63) | 25.0(5.79) | 25.1(0.89) | 25.2(0.89) | 25.0(0.72) | |
26.6(0.00) | 27.0(41.15) | 27.1(1.80) | 27.0(0.19) | 27.1(0.32) | 27.0(1.16) | 27.0(11.95) | 27.1(2.24) | 27.2(0.32) | 27.3(0.32) | 27.0(0.26) | |
23.1(0.00) | 23.9(60.23) | 24.0(1.56) | 23.8(0.16) | 24.0(0.29) | 23.9(1.00) | 23.8(10.30) | 24.0(1.97) | 24.3(0.28) | 24.4(0.28) | 24.1(0.23) | |
32.8(0.00) | 33.1(24.64) | 33.5(1.33) | 33.5(0.15) | 33.6(0.27) | 33.5(0.92) | 33.5(8.81) | 33.6(1.65) | 33.8(0.25) | 33.8(0.25) | 33.7(0.20) | |
27.2(0.00) | 28.2(89.43) | 28.4(3.16) | 28.1(0.35) | 28.5(0.61) | 28.3(2.14) | 28.2(21.16) | 28.4(4.07) | 28.8(0.62) | 29.0(0.60) | 28.5(0.50) | |
31.2(0.00) | 32.0(30.71) | 33.2(1.74) | 32.3(0.19) | 33.2(0.32) | 33.2(1.15) | 32.9(11.61) | 33.2(2.26) | 34.0(0.32) | 34.3(0.33) | 33.0(0.26) | |
31.7(0.00) | 32.6(82.56) | 33.0(4.83) | 32.6(0.61) | 33.1(1.02) | 33.0(3.24) | 32.8(32.29) | 33.0(6.24) | 33.4(0.94) | 33.5(0.95) | 33.2(0.77) | |
27.0(0.00) | 27.8(126.93) | 27.9(4.66) | 27.6(0.54) | 27.9(0.93) | 27.9(3.13) | 27.7(31.89) | 27.9(6.11) | 28.2(0.93) | 28.3(0.93) | 28.0(0.77) | |
29.4(0.00) | 30.7(133.08) | 31.1(7.15) | 30.4(0.84) | 31.1(1.40) | 30.9(4.62) | 30.8(45.65) | 30.9(8.67) | 31.7(1.40) | 32.1(1.38) | 31.3(1.17) | |
32.4(0.00) | 33.3(75.75) | 34.1(4.69) | 33.2(0.55) | 33.8(0.96) | 33.9(3.25) | 33.6(31.71) | 33.8(6.08) | 34.4(0.89) | 34.7(0.90) | 34.0(0.77) | |
23.7(0.00) | 25.0(110.57) | 25.2(5.57) | 24.6(0.74) | 25.0(1.20) | 25.1(3.95) | 24.8(36.84) | 24.9(7.66) | 25.6(1.25) | 26.1(1.23) | 25.2(1.02) | |
26.6(0.00) | 28.0(134.09) | 28.5(3.98) | 27.9(0.46) | 28.4(0.79) | 28.3(2.66) | 28.1(27.41) | 28.3(5.29) | 28.8(0.75) | 29.0(0.76) | 28.6(0.74) | |
Average PSNR | 27.54 (0.00) | 28.31 (98.53) | 28.67 (4.05) | 28.31 (0.47) | 28.65 (0.81) | 28.59 (2.72) | 28.44 (26.96) | 28.60 (5.24) | 28.97 (0.79) | 29.13 (0.79) | 28.71 (0.66) |
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 | 2019.1 seconds |
# of images | 14 |
Interpolation Kernel | bicubic |