Simulation results

PeakSNR [dB] (Running time [s])
OriginalBicubicYang et. al.Zeyde et. al.Our GROur ANRNE+LSNE+NNLSNE+LLE
31.8(0.00) 31.1(58.57) 33.1(2.91) 32.8(0.60) 33.0(0.76) 32.9(2.35) 32.8(22.50) 33.0(4.18)
30.2(0.00) 29.9(24.90) 31.7(0.90) 31.3(0.18) 31.8(0.24) 31.6(0.71) 31.5(6.86) 31.7(1.28)
22.1(0.00) 22.4(21.26) 23.6(0.72) 23.1(0.15) 23.5(0.21) 23.4(0.58) 23.3(5.35) 23.4(1.00)
31.6(0.00) 31.1(16.73) 32.2(0.86) 32.1(0.19) 32.3(0.25) 32.2(0.69) 32.1(6.45) 32.2(1.20)
26.5(0.00) 26.3(21.60) 27.9(0.87) 27.4(0.18) 27.8(0.24) 27.6(0.68) 27.6(6.43) 27.7(1.21)
Average PSNR 28.42 (0.00) 28.15 (28.61) 29.69 (1.25) 29.34 (0.26) 29.69 (0.34) 29.55 (1.00) 29.47 (9.52) 29.61 (1.77)

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
Duration771.6 seconds
# of images5
Interpolation Kernelbicubic
06-Oct-2013 13:09:52