Table 1 Coefficients of the AVC, AVS, VC-1 and HEVC transform kernels
From: Unified transform architecture for AVC, AVS, VC-1 and HEVC high-performance codecs
Transform | Kernel values | ||||||
|---|---|---|---|---|---|---|---|
a | b | c | d | e | f | g | |
AVC 2×2 Hadamard | 1 | - | - | - | - | - | - |
AVC 4×4 Hadamard | 1 | - | - | - | - | 1 | 1 |
AVC 4×4 forward DCT | 1 | - | - | - | - | 1 | 2 |
AVC 4×4 inverse DCT | 1 | - | - | - | - | 1 |
|
AVC 8×8 inverse DCT | 8 | 12 | 10 | 6 | 3 | 8 | 4 |
AVS 4×4 DCT | 2 | - | - | - | - | 3 | 1 |
AVS 8×8 DCT | 8 | 10 | 9 | 6 | 2 | 10 | 4 |
VC-1 4×4 DCT | 64 | - | - | - | - | 83 | 36 |
VC-1 8×8 DCT | 12 | 16 | 15 | 9 | 4 | 16 | 6 |
HEVC 4×4 DCT | 64 | - | - | - | - | 83 | 36 |
HEVC 8×8 DCT | 64 | 89 | 75 | 50 | 18 | 83 | 36 |