Simulation results

PeakSNR [dB] (Running time [s])
OriginalBicubicGRANRZeyde et al.A+Our A+BOur A+AOur A+COur IA
22.4(0.00) 22.7(0.53) 22.7(0.88) 22.7(3.76) 22.7(0.91) 22.7(2.61) 22.8(0.83) 22.8(1.78) 22.8(6.01)
25.1(0.00) 25.6(1.03) 25.6(1.44) 25.6(6.63) 25.7(1.50) 25.8(3.72) 25.8(1.38) 25.8(2.93) 25.8(9.72)
23.1(0.00) 23.6(0.71) 23.6(1.12) 23.7(4.10) 23.8(0.99) 23.8(2.60) 23.8(0.92) 23.9(1.88) 23.9(6.52)
25.5(0.00) 25.8(0.25) 25.8(0.42) 25.8(1.61) 26.0(0.37) 26.0(1.38) 26.1(0.37) 26.0(0.90) 26.1(3.02)
21.7(0.00) 22.2(0.22) 22.3(0.37) 22.3(1.44) 22.6(0.32) 22.6(1.19) 22.7(0.33) 22.8(0.79) 22.9(2.78)
31.6(0.00) 32.1(0.19) 32.2(0.32) 32.2(1.26) 32.4(0.27) 32.5(1.12) 32.5(0.28) 32.6(0.73) 32.7(2.44)
25.5(0.00) 26.2(0.41) 26.5(0.72) 26.4(2.83) 26.9(0.63) 26.9(1.91) 27.2(0.61) 27.3(1.39) 27.5(4.67)
29.4(0.00) 30.1(0.26) 30.8(0.42) 31.0(1.62) 32.2(0.35) 32.1(1.36) 32.7(0.37) 33.0(0.85) 33.1(3.00)
29.8(0.00) 30.6(0.72) 31.0(1.12) 30.9(4.18) 31.4(1.01) 31.4(2.97) 31.6(0.89) 31.7(1.88) 31.9(6.52)
25.7(0.00) 26.2(0.70) 26.4(1.11) 26.5(4.55) 26.8(1.03) 26.8(2.64) 26.9(0.90) 27.0(1.83) 27.1(6.52)
27.5(0.00) 28.4(1.07) 28.7(1.42) 28.7(6.30) 29.4(1.51) 29.4(3.92) 29.8(1.34) 30.2(2.68) 30.6(9.33)
30.6(0.00) 31.4(0.65) 31.9(1.07) 32.1(4.15) 32.9(0.96) 32.9(2.56) 33.2(0.93) 33.5(1.94) 33.6(6.51)
22.0(0.00) 22.6(0.94) 22.8(1.46) 23.1(5.13) 23.6(1.29) 23.7(3.41) 24.1(1.16) 24.7(2.40) 25.2(8.14)
24.1(0.00) 25.2(0.61) 25.5(0.97) 25.5(3.65) 25.9(0.81) 26.0(2.30) 26.3(0.80) 26.5(1.74) 26.7(5.67)
Average PSNR 26.00 (0.00) 26.60 (0.59) 26.85 (0.92) 26.88 (3.66) 27.32 (0.85) 27.35 (2.41) 27.54 (0.79) 27.73 (1.69) 27.87 (5.78)

Simulation parameters

Scaling factorx4
High-res. patch size12 x 12
Feature upsampling factor4
Feature dim. (original)576
Feature dim. (reduced)30
Dictionary size1024
Dictionary maximal sparsity3
Dictionary iterations20
Duration735.9 seconds
# of images14
Interpolation Kernelbicubic
19-Sep-2015 23:29:01