Research Article
Efficient Region-of-Interest Scalable Video Coding with Adaptive Bit-Rate Control
Table 5
FMO: four-layer coding versus eight-layer coding (“STOCKHOLM”, 30 fps, 96 frames, GOP size is 8).
| Quantization parameters |
Four layers (one 640 360 layer, and three 720p layers) by using the FMO |
Eight layers (two CIF layers, three SD layers, and three 720p layers) |
Bit-rate savings (%) | PSNR [dB] | Bit-rate [kb/s] | PSNR [dB] | Bit-rate [kb/s] |
| 32 | 34.5 | 2566.2 | 34.5 | 3237.0 | 20.7 | 34 | 33.9 | 1730.2 | 33.9 | 2359.1 | 26.7 | 36 | 33.3 | 1170.0 | 33.3 | 1759.0 | 33.5 |
|
|