Table 9 RD performance and time savings of the approach for GOP = 8 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 = 8 (main 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 | 0.668 | -0.07 | 71.66 | 87.93 | 0.443 | -1.09 | 71.20 | 88.23 |
City | 0.063 | 1.81 | 71.12 | 87.99 | 0.018 | 0.31 | 71.29 | 88.31 |
Foreman | 0.040 | 3.39 | 72.65 | 88.41 | -0.171 | 3.21 | 71.47 | 88.42 |
Soccer | -0.027 | 5.52 | 69.99 | 86.09 | 0.105 | 3.46 | 70.57 | 87.24 |
Harbor | 0.361 | -0.46 | 70.30 | 86.57 | 0.244 | -0.73 | 69.98 | 86.48 |
Mobile | 0.022 | 0.68 | 70.39 | 86.31 | 0.212 | -0.23 | 71.63 | 87.28 |
Average | 0.188 | 1.81 | 71.02 | 87.22 | 0.142 | 0.82 | 71.02 | 87.66 |