Table 2 GPU vs. SEQ PE_LTW speedup and total encoding time comparison with SPIHT and Kakadu
From: Enhancing LTW image encoder with perceptual coding and GPU-optimized 2D-DWT transform
Rates | PE_LTW | SPIHT | Kakadu | ||||||
|---|---|---|---|---|---|---|---|---|---|
(bpp) | SEQ-DWT | GPU-DWT | Rate & Coder | T.SEQ | T.GPU | Speedup | Total | Total | |
Lena | 1.00 | 17.08 | 0.85 | 31.80 | 48.88 | 32.65 | 1.50 | 93.04 | 13.00 |
0.5 | 17.23 | 0.86 | 16.15 | 33.38 | 17.01 | 1.96 | 185.74 | 9.00 | |
0.25 | 17.17 | 0.86 | 10.39 | 27.56 | 11.25 | 2.45 | 198.64 | 8.00 | |
0.125 | 17.57 | 0.88 | 7.73 | 25.30 | 8.61 | 2.94 | 220.15 | 7.00 | |
Barbara | 1.00 | 17.89 | 0.89 | 27.26 | 45.15 | 28.16 | 1.60 | 77.80 | 15.00 |
0.5 | 17.42 | 0.87 | 17.04 | 34.46 | 17.91 | 1.92 | 72.37 | 9.00 | |
0.25 | 17.45 | 0.87 | 11.53 | 28.98 | 12.40 | 2.34 | 42.59 | 8.00 | |
0.125 | 17.49 | 0.87 | 8.38 | 25.87 | 9.25 | 2.79 | 35.04 | 7.00 | |
Goldhill | 1.00 | 17.61 | 0.88 | 30.62 | 48.23 | 31.50 | 1.53 | 99.46 | 12.00 |
0.5 | 18.13 | 0.91 | 18.21 | 36.34 | 19.12 | 1.90 | 52.72 | 24.00 | |
0.25 | 17.30 | 0.86 | 11.51 | 28.81 | 12.38 | 2.33 | 45.51 | 8.00 | |
0.125 | 17.42 | 0.87 | 7.97 | 25.39 | 8.84 | 2.87 | 28.86 | 7.00 | |
Boat | 1.00 | 17.02 | 0.85 | 27.44 | 44.46 | 28.29 | 1.57 | 79.05 | 11.00 |
0.5 | 17.35 | 0.87 | 17.13 | 34.49 | 18.00 | 1.92 | 51.22 | 9.00 | |
0.25 | 17.03 | 0.85 | 11.35 | 28.37 | 12.20 | 2.33 | 41.98 | 7.00 | |
0.125 | 17.13 | 0.86 | 7.95 | 25.07 | 8.80 | 2.85 | 59.12 | 8.00 | |
Mandrill | 1.00 | 17.99 | 0.90 | 32.85 | 50.84 | 33.75 | 1.51 | 94.06 | 19.00 |
0.5 | 17.89 | 0.89 | 19.98 | 37.87 | 20.87 | 1.81 | 51.86 | 11.00 | |
0.25 | 17.59 | 0.88 | 13.11 | 30.69 | 13.99 | 2.19 | 40.83 | 8.00 | |
0.125 | 17.87 | 0.89 | 8.59 | 26.46 | 9.48 | 2.79 | 47.26 | 8.00 | |
Balloon | 1.00 | 16.89 | 0.84 | 26.86 | 43.75 | 27.71 | 1.58 | 104.25 | 12.00 |
0.5 | 17.27 | 0.86 | 16.39 | 33.67 | 17.26 | 1.95 | 45.25 | 9.00 | |
0.25 | 16.89 | 0.84 | 10.92 | 27.81 | 11.77 | 2.36 | 36.91 | 8.00 | |
0.125 | 16.89 | 0.84 | 8.06 | 24.95 | 8.90 | 2.80 | 29.03 | 7.00 | |
Horse | 1.00 | 17.60 | 0.88 | 31.81 | 49.42 | 32.69 | 1.51 | 86.45 | 13.00 |
0.5 | 17.34 | 0.87 | 18.49 | 35.83 | 19.36 | 1.85 | 56.35 | 9.00 | |
0.25 | 17.33 | 0.87 | 11.38 | 28.71 | 12.25 | 2.34 | 36.74 | 9.00 | |
0.125 | 17.55 | 0.88 | 8.25 | 25.80 | 9.12 | 2.83 | 43.10 | 8.00 | |
Zelda | 1.00 | 17.11 | 0.86 | 35.36 | 52.48 | 36.22 | 1.45 | 57.56 | 11.00 |
0.5 | 17.08 | 0.85 | 16.58 | 33.65 | 17.43 | 1.93 | 34.68 | 9.00 | |
0.25 | 17.39 | 0.87 | 10.48 | 27.87 | 11.35 | 2.46 | 25.36 | 8.00 | |
0.125 | 17.25 | 0.86 | 7.40 | 24.65 | 8.26 | 2.98 | 26.44 | 7.00 | |
Cafe | 1.00 | 419.10 | 20.95 | 521.75 | 940.85 | 542.71 | 1.73 | 719.54 | 197.00 |
0.5 | 418.50 | 20.92 | 325.41 | 743.91 | 346.34 | 2.15 | 1,854.99 | 129.00 | |
0.25 | 418.97 | 20.95 | 217.20 | 636.17 | 238.15 | 2.67 | 1,104.76 | 105.00 | |
0.125 | 418.73 | 20.94 | 150.93 | 569.66 | 171.86 | 3.31 | 733.09 | 90.00 | |
Bike | 1.00 | 412.87 | 20.64 | 508.61 | 921.48 | 529.26 | 1.74 | 1265.46 | 171.00 |
0.5 | 413.13 | 20.66 | 296.34 | 709.47 | 317.00 | 2.24 | 1867.98 | 121.00 | |
0.25 | 415.15 | 20.76 | 191.44 | 606.59 | 212.20 | 2.86 | 943.82 | 101.00 | |
0.125 | 414.18 | 20.71 | 134.58 | 548.76 | 155.29 | 3.53 | 762.22 | 88.00 | |
Woman | 1.00 | 414.49 | 20.72 | 527.83 | 942.31 | 548.55 | 1.72 | 819.65 | 169.00 |
0.5 | 414.12 | 20.71 | 321.25 | 735.36 | 341.95 | 2.15 | 1,528.94 | 137.00 | |
0.25 | 418.81 | 20.94 | 215.76 | 634.57 | 236.70 | 2.68 | 913.84 | 95.00 | |
0.125 | 417.78 | 20.89 | 151.65 | 569.43 | 172.54 | 3.30 | 699.80 | 89.00 | |