Table I.
Comparison of Three Filtering Schemes with Respect to Quality and Resource Usage
Filtering Method | LUTs/Registers | Multipliers | Filter Eff. | Extra Work |
---|---|---|---|---|
Full precision | 341/881 0.43% | 12 1.6% | 100% | 0% |
Full prec. - logic only muls | 2577/2696 1.3% | 0 0.0% | 100% | 0% |
| ||||
Reduced precision | 131/266 0.13% | 3 0.4% | 99.5% | 3% |
Reduced prec. - logic only muls | 303/436 0.21% | 0 0.0% | 99.5% | 3% |
| ||||
Planar | 164/279 0.14% | 0 0.0% | 97.5% | 13% |
| ||||
Force pipe | 5695/7678 5.0% | 70 9.1% | NA | NA |
A force pipeline is shown for reference. Percent utilization is with respect to the Altera Stratix-III EP3SE260.