Table 7 RD performance and time savings of the approach for GOP = 2 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 = 2 (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 | 0.064 | -0.39 | 58.13 | 87.06 | 0.069 | -0.48 | 58.00 | 85.84 |
City | 0.061 | 0.34 | 59.70 | 87.92 | 0.049 | -0.41 | 59.39 | 88.15 |
Foreman | -0.004 | 1.51 | 57.17 | 86.76 | -0.039 | 1.42 | 59.74 | 88.30 |
Soccer | -0.016 | 3.46 | 62.28 | 81.24 | 0.133 | 1.16 | 59.36 | 88.10 |
Harbor | 0.068 | -0.52 | 58.18 | 85.36 | 0.055 | -0.77 | 57.20 | 84.90 |
Mobile | 0.016 | -0.13 | 57.83 | 85.05 | -0.005 | 1.71 | 58.89 | 86.90 |
Average | 0.032 | 0.71 | 58.88 | 85.57 | 0.044 | 0.44 | 58.76 | 87.03 |