Table 2 Timing results of the neural network-based FPGA face detector by different FPUs.
Bit-width | Max. Clock (MHz) | 1/f(ns) | Time | Frame rate |
|---|---|---|---|---|
| 8.5 | 117 | 50 | 20 |
FPU32 | 48 | 21.7 | 8.7 | 114.4 |
FPU24 | 58 (+21%) | 17.4 | 7.4 | 135.9 |
FPU20 | 77 ( | 13 | 5.5 | 182.1 |
FPU16 | 80 ( | 12.5 | 5.3 | 189.8 |
FPU12 | 85 ( | 11.7 | 5 | 201.8 |
/1 frame (ms)
60%)
67%)
77%)-
General PCs use the 64-bit FPU,
operating time = [(1 / Max. Clock) × 423,163 (total cycle)],
frame Rate = 1000/Operating time.
General PCs use the 64-bit FPU,
operating time = [(1 / Max. Clock) × 423,163 (total cycle)],
frame Rate = 1000/Operating time.