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 | ||||||||
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GOP = 32 (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 | 0.291 | 1.16 | 66.84 | 86.94 | 0.756 | 1.17 | 66.62 | 86.39 |
City | -0.192 | 3.64 | 66.89 | 85.93 | -0.104 | 2.77 | 66.27 | 85.99 |
Foreman | -0.116 | 5.51 | 63.75 | 82.56 | -0.264 | 5.31 | 66.05 | 85.59 |
Soccer | 0.073 | 4.53 | 63.92 | 81.96 | 0.019 | 3.97 | 64.59 | 83.52 |
Harbor | 0.122 | 2.41 | 61.86 | 80.05 | -0.009 | 2.46 | 62.64 | 81.25 |
Mobile | 0.039 | 2.25 | 61.59 | 79.70 | 0.158 | 1.62 | 62.65 | 81.46 |
Average | 0.036 | 3.25 | 64.14 | 82.86 | 0.093 | 2.88 | 64.80 | 84.03 |