Table 3 RD performance and time savings of the approach for GOP = 4 and different resolutions
From: Low-complexity transcoding algorithm from H.264/AVC to SVC using data mining
RD performance and time savings of the H.264/AVC-to-SVC transcoder | ||||||||
|---|---|---|---|---|---|---|---|---|
GOP = 4 (baseline profile) | ||||||||
Sequence | QCIF (15 Hz) | CIF (30 Hz) | ||||||
|  | ΔPSNR (dB) | ΔBitrate (%) | Time saving (%) | ΔPSNR (dB) | ΔBitrate (%) | Time saving (%) | ||
Full seq. | Partial | Full seq. | Partial | |||||
Hall | 0.219 | 0.04 | 74.58 | 85.80 | 0.328 | -0.45 | 74.69 | 86.45 |
City | 0.064 | 1.93 | 75.69 | 86.04 | 0.200 | 0.66 | 76.30 | 86.96 |
Foreman | 0.251 | 2.34 | 72.68 | 83.55 | -0.112 | 3.01 | 74.63 | 85.65 |
Soccer | 0.043 | 2.24 | 72.11 | 81.83 | 0.021 | 2.37 | 72.35 | 83.05 |
Harbor | 0.107 | -0.68 | 68.30 | 78.88 | 0.175 | -1.22 | 71.75 | 81.57 |
Mobile | 0.142 | 0.15 | 65.37 | 76.51 | 0.229 | -1.69 | 69.83 | 80.37 |
Average | 0.138 | 1.00 | 71.46 | 82.10 | 0.140 | 0.45 | 73.26 | 84.01 |