Table 2 Comparison of inverse 2-D transform cores
Method | [8] | [16] | [17] | [18] | [19] | [22] | [24] | Proposed |
|---|---|---|---|---|---|---|---|---|
Technology | 90 nm | 0.18 µm | 90 nm | 0.18 µm | 40 nm | 0.18 µm | 90 nm | 90 nm |
Gate count ⋆ | 142 K ∗ | 487 K | 133.8 K | 79 K | 335 K | 112 K+16 Kb | 120 K | 110 K |
Frequency | 150 MHz | 300 MHz | 270 MHz | 125 MHz | 400 MHz | 110 MHz | 149.35 MHz | 250 MHz |
Pixels/cycle | 2.67 | 2.12 | 0.5 | 2 | 16 | 1 | 32 | 1 |
Throughput | 400 MPS | 636 MPS | 135 MPS | 250 MPS | 6.4 GPS | 110 MPS | 3.5 GPS | 250 MPS |
Support standard | HEVC | HEVC | HEVC | HEVC | HEVC | HEVC | HEVC | HEVC |
Support dimension | 4/8/16/32 | 16/32 | 4/8/16/32 | 32 | 4/8/16/32 | 4/8/16/32 | 4/8/16/32 | 4/8/16/32 |