Table 10 RD performance and time savings of the approach for GOP = 16 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 = 16 (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 | 0.632 | -0.06 | 68.34 | 86.72 | 0.337 | -0.89 | 66.81 | 87.92 |
City | -0.009 | 1.92 | 68.91 | 87.18 | -0.008 | 0.34 | 68.75 | 88.37 |
Foreman | 0.096 | 2.72 | 67.62 | 86.39 | -0.102 | 2.99 | 68.93 | 88.46 |
Soccer | -0.029 | 5.06 | 67.15 | 85.06 | 0.117 | 3.66 | 68.13 | 87.36 |
Harbor | 0.172 | -0.42 | 66.72 | 85.27 | 0.168 | 0.54 | 67.80 | 87.09 |
Mobile | 0.033 | 0.53 | 67.29 | 85.28 | 0.185 | 0.10 | 68.39 | 87.22 |
Average | 0.149 | 1.63 | 67.67 | 85.98 | 0.116 | 1.12 | 68.14 | 87.74 |