Table 4 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 (baseline 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 | 0.158 | 0.37 | 70.59 | 86.28 | 0.025 | 0.47 | 70.69 | 86.83 |
City | -0.008 | 2.67 | 70.16 | 85.70 | 0.175 | 1.32 | 70.10 | 86.16 |
Foreman | 0.210 | 3.22 | 66.89 | 82.89 | -0.001 | 3.58 | 69.96 | 85.91 |
Soccer | 0.074 | 2.61 | 65.19 | 80.63 | -0.001 | 2.99 | 68.07 | 83.55 |
Harbor | 0.048 | 0.15 | 64.60 | 79.54 | 0.072 | -0.18 | 65.54 | 80.60 |
Mobile | 0.031 | 0.87 | 64.82 | 79.36 | 0.233 | -0.84 | 65.81 | 81.10 |
Average | 0.086 | 1.65 | 67.04 | 82.40 | 0.084 | 1.22 | 68.36 | 84.02 |