Simulation results

PeakSNR [dB] (Running time [s])
OriginalBicubicGRANRZeyde et al.A+Our A+BOur A+AOur A+COur IA
24.9(0.00) 25.5(1.83) 25.5(2.26) 25.5(18.90) 25.6(2.95) 25.7(6.18) 25.7(3.14) 25.7(10.72) 25.8(17.56)
28.0(0.00) 28.6(2.65) 28.6(3.71) 28.7(31.19) 28.7(4.49) 28.7(9.30) 28.6(5.17) 28.2(21.01) 28.2(29.04)
26.6(0.00) 27.4(1.70) 27.5(3.10) 27.6(16.90) 27.8(2.76) 27.8(5.61) 27.8(3.29) 27.9(11.55) 28.0(18.87)
29.1(0.00) 30.3(0.62) 30.4(1.08) 30.4(6.14) 30.6(0.96) 30.6(2.35) 30.6(1.30) 30.6(4.72) 30.8(7.91)
26.0(0.00) 27.3(0.55) 27.8(0.97) 27.6(6.40) 28.3(1.19) 28.3(2.57) 28.5(1.17) 28.9(4.35) 29.0(7.00)
34.8(0.00) 35.6(0.46) 35.6(0.88) 35.6(5.00) 35.7(0.76) 35.8(1.87) 35.8(1.00) 35.8(3.75) 35.9(6.07)
30.4(0.00) 31.7(1.17) 32.3(1.87) 32.3(10.56) 33.0(1.76) 33.1(3.74) 33.3(2.27) 33.9(8.06) 34.0(13.25)
34.1(0.00) 35.4(0.62) 36.4(1.10) 36.2(7.40) 36.9(1.22) 37.1(2.73) 37.3(1.54) 37.5(5.74) 37.6(8.03)
34.7(0.00) 36.0(1.55) 36.3(2.91) 36.2(19.59) 36.6(3.22) 36.6(6.30) 36.7(3.29) 36.9(11.35) 37.0(20.59)
29.2(0.00) 30.1(1.68) 30.5(3.02) 30.4(19.53) 30.9(3.20) 30.9(5.99) 31.0(3.23) 31.2(11.58) 31.3(19.60)
32.9(0.00) 34.6(2.54) 35.7(4.54) 35.7(22.90) 37.0(5.18) 37.1(9.75) 37.7(4.87) 38.6(18.30) 38.8(27.62)
35.0(0.00) 35.7(1.68) 36.4(2.66) 36.6(15.48) 37.0(3.36) 37.0(6.61) 37.1(3.30) 37.3(11.57) 37.3(19.12)
26.9(0.00) 28.4(2.09) 29.0(3.92) 29.3(21.22) 30.1(4.26) 30.2(8.10) 30.7(4.24) 31.6(16.10) 31.8(25.42)
30.6(0.00) 32.4(1.47) 33.1(2.67) 33.2(13.09) 33.6(2.30) 33.6(4.82) 33.9(2.85) 34.0(11.29) 34.2(16.45)
Average PSNR 30.23 (0.00) 31.36 (1.47) 31.80 (2.48) 31.81 (15.31) 32.28 (2.69) 32.33 (5.42) 32.48 (2.90) 32.72 (10.72) 32.86 (16.90)

Simulation parameters

Scaling factorx2
High-res. patch size6 x 6
Feature upsampling factor2
Feature dim. (original)144
Feature dim. (reduced)28
Dictionary size1024
Dictionary maximal sparsity3
Dictionary iterations20
Duration2282.1 seconds
# of images14
Interpolation Kernelbicubic
19-Sep-2015 23:31:06