Table 5 ΔTime, ΔPSNR, and ΔBitrate for the compared sequences (30 Hz scenario)
Sequence | RD performance of the WZ/H.264 video transcoder – 30fps | ||||||||
|---|---|---|---|---|---|---|---|---|---|
GOP 2 | GOP 4 | GOP 8 | |||||||
ΔBitrate (%) | ΔPSNR (dB) | TR (%) | ΔBitrate (%) | ΔPSNR (dB) | TR (%) | ΔBitrate (%) | ΔPSNR (dB) | TR (%) | |
Foreman | 5.06 | −0.198 | 92.40 | 5.07 | −0.195 | 92.41 | 4.76 | −0.177 | 92.24 |
Hall | 1.75 | −0.078 | 92.11 | 1.18 | −0.052 | 92.08 | 0.83 | −0.036 | 91.89 |
Mobile | 1.25 | −0.055 | 94.27 | 0.89 | −0.041 | 94.16 | 0.63 | −0.027 | 94.11 |
Coastguard | 2.30 | −0.091 | 93.91 | 1.99 | −0.076 | 93.81 | 1.54 | −0.060 | 93.69 |
News | 1.60 | −0.069 | 92.42 | 1.37 | −0.059 | 92.41 | 1.05 | −0.045 | 92.33 |
Paris | 2.00 | −0.084 | 93.22 | 1.26 | −0.053 | 93.06 | 0.91 | −0.037 | 93.09 |
Salesman | 0.78 | −0.034 | 93.21 | 0.63 | −0.026 | 93.02 | 0.54 | −0.022 | 93.03 |
Mother | 0.46 | −0.016 | 92.50 | 0.27 | −0.009 | 92.33 | 0.30 | −0.011 | 92.31 |
Mean | 1.90 | −0.078 | 93.00 | 1.58 | −0.064 | 92.91 | 1.32 | −0.052 | 92.84 |