Table 8 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 (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 | 0.166 | 0.15 | 77.92 | 88.55 | 0.230 | -1.30 | 76.24 | 88.17 |
City | 0.141 | 2.07 | 77.47 | 88.49 | 0.017 | 0.36 | 76.29 | 88.23 |
Foreman | 0.048 | 3.46 | 77.21 | 88.08 | -0.016 | 3.20 | 76.51 | 88.35 |
Soccer | -0.095 | 5.42 | 74.86 | 85.97 | 0.079 | 3.45 | 75.47 | 87.06 |
Harbor | 0.171 | -0.40 | 75.56 | 86.49 | 0.136 | -0.83 | 74.56 | 86.35 |
Mobile | 0.041 | 0.76 | 74.49 | 85.66 | 0.097 | -0.63 | 74.20 | 85.94 |
Average | 0.079 | 1.91 | 76.25 | 87.21 | 0.091 | 0.71 | 75.55 | 87.35 |