Table 11 RD performance and time savings of the approach for GOP = 32 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 = 32 (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 | 0.626 | 0.29 | 70.31 | 88.83 | 0.166 | -0.34 | 66.90 | 87.78 |
City | -0.020 | 1.68 | 68.97 | 88.61 | -0.011 | 0.46 | 67.60 | 87.78 |
Foreman | -0.024 | 3.41 | 69.16 | 88.32 | 0.001 | 3.19 | 67.93 | 87.93 |
Soccer | 0.018 | 5.79 | 66.12 | 86.12 | 0.089 | 3.62 | 67.17 | 86.92 |
Harbor | 0.371 | 0.16 | 68.13 | 87.39 | 0.229 | -0.15 | 66.96 | 86.79 |
Mobile | 0.102 | 1.03 | 67.08 | 86.74 | 0.144 | 0.46 | 66.63 | 86.59 |
Average | 0.179 | 2.06 | 68.30 | 87.67 | 0.103 | 1.21 | 67.20 | 87.30 |