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)
33.9(0.00) 34.3(86.97) 35.1(4.58) 34.9(0.58) 35.1(0.84) 35.0(3.10) 34.8(30.89) 35.1(5.86) 35.3(0.91) 35.2(0.92) 35.1(0.74)
32.6(0.00) 34.1(36.70) 34.6(1.43) 33.9(0.16) 34.6(0.28) 34.4(0.96) 34.3(9.44) 34.6(1.78) 35.3(0.27) 35.5(0.29) 34.8(0.25)
24.0(0.00) 25.6(34.01) 25.9(1.10) 25.0(0.14) 25.9(0.23) 25.8(0.76) 25.6(7.54) 25.8(1.44) 26.6(0.23) 27.2(0.23) 26.2(0.20)
32.9(0.00) 33.2(25.90) 33.6(1.33) 33.5(0.17) 33.6(0.28) 33.5(0.91) 33.5(8.87) 33.6(1.66) 33.8(0.27) 33.8(0.28) 33.7(0.23)
28.6(0.00) 29.9(30.54) 30.4(1.28) 29.7(0.17) 30.3(0.30) 30.2(0.90) 29.9(8.70) 30.2(1.68) 30.9(0.27) 31.2(0.27) 30.6(0.23)
Average PSNR 30.39 (0.00) 31.42 (42.82) 31.90 (1.94) 31.41 (0.24) 31.92 (0.38) 31.78 (1.33) 31.60 (13.09) 31.84 (2.48) 32.39 (0.39) 32.59 (0.40) 32.07 (0.33)

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
Duration554.5 seconds
# of images5
Interpolation Kernelbicubic
07-Sep-2014 15:25:01