Table 4 Synthesis results using the same benchmark instances as in Table 2 providing the actual BLEs as well as the maximum clock frequency f m a x on a Virtex 6 FPGA
Filter | Filter | B c | B x | RPAG[9] | LUT | Optimal | Optimal | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
type | size | ( R = 50) | MCM[35] | PAG | PALG | ||||||
BLE | f m a x | BLE | f m a x | BLE | f m a x | BLE | f m a x | ||||
Gaussian | 3 × 3 | 8 | 8 | 58 | 713.8 | 58 | 720.5 | 58 | 730.5 | 58 | 720.5 |
Gaussian | 5 × 5 | 12 | 8 | 125 | 635.3 | 68 | 633.3 | 111 | 619.2 | 68 | 633.3 |
Laplacian | 3 × 3 | 8 | 8 | 61 | 749.1 | 52 | 718.9 | 61 | 701.8 | 52 | 718.9 |
Unsharp | 3 × 3 | 8 | 8 | 56 | 727.8 | 51 | 731.0 | 56 | 709.7 | 51 | 731.0 |
Unsharp | 3 × 3 | 12 | 8 | 107 | 636.9 | 59 | 701.3 | 91 | 657.9 | 59 | 701.3 |
Lowpass | 5 × 5 | 8 | 8 | 98 | 665.8 | 93 | 652.3 | 98 | 657.9 | 93 | 652.3 |
Lowpass | 9 × 9 | 10 | 8 | 221 | 593.5 | 186 | 573.1 | 221 | 582.4 | 186 | 573.1 |
Lowpass | 15 × 15 | 12 | 8 | 469 | 530.2 | 368 | 525.8 | 478 | 489.0 | 368 | 525.8 |
Highpass | 5 × 5 | 8 | 8 | 74 | 605.3 | 67 | 726.2 | 74 | 711.7 | 67 | 726.2 |
Highpass | 9 × 9 | 10 | 8 | 85 | 718.4 | 81 | 655.3 | 85 | 689.2 | 81 | 655.3 |
Highpass | 15 × 15 | 12 | 8 | 184 | 613.9 | 166 | 630.5 | 183 | 598.4 | 166 | 630.5 |
Gaussian | 3 × 3 | 8 | 10 | 64 | 713.3 | 70 | 776.4 | 68 | 745.7 | 64 | 666.7 |
Gaussian | 5 × 5 | 12 | 10 | 139 | 653.6 | 82 | 690.6 | 129 | 637.8 | 82 | 690.6 |
Laplacian | 3 × 3 | 8 | 10 | 71 | 682.6 | 59 | 745.2 | 71 | 656.6 | 59 | 745.2 |
Unsharp | 3 × 3 | 8 | 10 | 66 | 729.9 | 60 | 769.8 | 66 | 712.3 | 66 | 712.3 |
Unsharp | 3 × 3 | 12 | 10 | 118 | 682.1 | 69 | 690.1 | 103 | 605.3 | 69 | 690.1 |
Lowpass | 5 × 5 | 8 | 10 | 110 | 640.6 | 106 | 627.0 | 114 | 646.8 | 111 | 647.3 |
Lowpass | 9 × 9 | 10 | 10 | 255 | 557.4 | 225 | 574.4 | 251 | 602.1 | 252 | 528.3 |
Lowpass | 15 × 15 | 12 | 10 | 539 | 526.0 | 443 | 414.8 | 546 | 514.7 | 529 | 470.8 |
Highpass | 5 × 5 | 8 | 10 | 88 | 700.3 | 89 | 698.8 | 86 | 704.2 | 87 | 721.5 |
Highpass | 9 × 9 | 10 | 10 | 97 | 616.5 | 91 | 644.8 | 97 | 677.5 | 97 | 677.5 |
Highpass | 15 × 15 | 12 | 10 | 213 | 561.8 | 218 | 600.6 | 218 | 567.9 | 203 | 583.8 |
Gaussian | 3 × 3 | 8 | 12 | 78 | 646.4 | 129 | 688.2 | 78 | 644.3 | 78 | 644.3 |
Gaussian | 5 × 5 | 12 | 12 | 161 | 619.6 | 150 | 615.4 | 147 | 624.2 | 147 | 635.7 |
Laplacian | 3 × 3 | 8 | 12 | 81 | 684.0 | 104 | 672.0 | 81 | 724.1 | 81 | 724.1 |
Unsharp | 3 × 3 | 8 | 12 | 76 | 721.5 | 129 | 638.2 | 72 | 638.6 | 72 | 638.6 |
Unsharp | 3 × 3 | 12 | 12 | 132 | 614.3 | 122 | 620.0 | 119 | 638.6 | 119 | 638.6 |
Lowpass | 5 × 5 | 8 | 12 | 127 | 601.3 | 198 | 557.1 | 126 | 653.2 | 130 | 625.8 |
Lowpass | 9 × 9 | 10 | 12 | 285 | 603.1 | 412 | 606.4 | 278 | 581.7 | 273 | 602.4 |
Lowpass | 15 × 15 | 12 | 12 | 606 | 521.4 | 835 | 530.8 | 619 | 530.8 | 620 | 517.9 |
Highpass | 5 × 5 | 8 | 12 | 102 | 669.8 | 145 | 647.7 | 94 | 714.3 | 94 | 714.3 |
Highpass | 9 × 9 | 10 | 12 | 113 | 655.7 | 159 | 624.6 | 113 | 680.7 | 113 | 680.7 |
Highpass | 15 × 15 | 12 | 12 | 238 | 591.4 | 388 | 593.5 | 239 | 539.7 | 250 | 590.7 |
Average | 160.52 | 641.9 | 167.64 | 645.28 | 158.52 | 642.08 | 146.82 | 648.94 | |||
Improvement to RPAG (R = 50): | – | – | -4.4% | -0.5% | 1.25% | 0.03% | 8.53% | 1.09% | |||