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 = 16 (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 | 0.325 | 0.58 | 69.47 | 85.97 | -0.673 | 1.90 | 67.61 | 86.89 |
City | -0.040 | 3.14 | 69.01 | 85.45 | -0.140 | 1.96 | 67.16 | 86.39 |
Foreman | -0.333 | 3.36 | 65.30 | 82.47 | -0.104 | 4.86 | 66.74 | 85.88 |
Soccer | 0.068 | 3.03 | 66.02 | 81.60 | 0.031 | 3.60 | 65.29 | 83.83 |
Harbor | 0.199 | 0.99 | 65.13 | 80.51 | 0.280 | 2.43 | 62.78 | 81.15 |
Mobile | 0.024 | 1.18 | 63.31 | 79.07 | 0.218 | 0.17 | 63.41 | 81.66 |
Average | 0.041 | 2.05 | 66.37 | 82.51 | -0.065 | 2.49 | 65.50 | 84.30 |