Simulation results

PeakSNR [dB] (Running time [s])
OriginalBicubicBicubicZeyde et al.Our GROur ANRNE+LSNE+NNLSNE+LLEOur A+ (0.5mil)Our A+Our A+ (16atoms)
37.1(0.00) 37.1(0.00) 38.2(10.01) 38.3(0.80) 38.4(1.34) 38.1(6.48) 38.0(73.46) 38.3(12.48) 38.6(1.51) 38.5(1.38) 38.4(1.00)
36.8(0.00) 36.8(0.00) 39.9(3.07) 39.0(0.24) 40.0(0.39) 39.9(2.03) 39.4(22.72) 40.0(4.01) 40.9(0.46) 41.1(0.46) 40.0(0.36)
27.4(0.00) 27.4(0.00) 30.6(2.48) 29.1(0.18) 30.5(0.36) 30.4(1.57) 30.0(17.90) 30.4(3.12) 31.5(0.37) 32.0(0.38) 31.0(0.29)
34.9(0.00) 34.9(0.00) 35.6(2.86) 35.6(0.22) 35.7(0.41) 35.5(1.88) 35.5(20.26) 35.6(3.63) 35.8(0.43) 35.8(0.43) 35.7(0.33)
32.1(0.00) 32.1(0.00) 34.5(2.84) 33.7(0.24) 34.5(0.45) 34.3(1.90) 34.2(20.78) 34.5(3.73) 35.2(0.46) 35.3(0.47) 34.7(0.37)
Average PSNR 33.66 (0.00) 33.66 (0.00) 35.78 (4.25) 35.13 (0.34) 35.83 (0.59) 35.66 (2.77) 35.43 (31.03) 35.77 (5.40) 36.37 (0.65) 36.55 (0.62) 35.95 (0.47)

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
Duration609.7 seconds
# of images5
Interpolation Kernelbicubic
07-Sep-2014 15:37:32