Simulation results

PeakSNR [dB] (Running time [s])
OriginalBicubicYang et. al.Zeyde et. al.Our GROur ANRNE+LSNE+NNLSNE+LLE
37.1(0.00) 26.1(174.75) 38.2(10.84) 38.3(1.24) 38.4(1.83) 38.1(8.26) 38.0(98.41) 38.3(15.84)
36.8(0.00) 27.3(65.03) 39.9(3.34) 39.0(0.39) 40.0(0.59) 39.9(2.55) 39.4(30.56) 40.0(4.87)
27.4(0.00) 23.0(68.05) 30.6(2.67) 29.1(0.31) 30.5(0.43) 30.4(2.02) 30.0(23.71) 30.4(3.81)
34.9(0.00) 27.4(51.22) 35.6(3.15) 35.6(0.37) 35.7(0.53) 35.5(2.41) 35.5(28.25) 35.6(4.59)
32.1(0.00) 26.4(60.47) 34.5(3.16) 33.7(0.37) 34.5(0.54) 34.3(2.41) 34.2(28.78) 34.5(4.61)
Average PSNR 33.66 (0.00) 26.04 (83.90) 35.78 (4.63) 35.13 (0.54) 35.83 (0.78) 35.66 (3.53) 35.43 (41.94) 35.77 (6.74)

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
Duration2499.5 seconds
# of images5
Interpolation Kernelbicubic
06-Oct-2013 13:29:30