Simulation results

PeakSNR [dB] (Running time [s])
OriginalBicubicYang et al.Zeyde et al.Our GROur ANRNE+LSNE+NNLSNE+LLEOur 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)

Simulation parameters

Scaling factorx3
High-res. patch size9 x 9
Feature upsampling factor3
Feature dim. (original)324
Feature dim. (reduced)30
Dictionary size1024
Dictionary maximal sparsity3
Dictionary iterations20
Duration2019.1 seconds
# of images14
Interpolation Kernelbicubic
07-Sep-2014 16:53:46