Efficient Region-of-Interest Scalable Video Coding with Adaptive Bit-Rate Control

Table 4

FMO: four-layer spatial scalability coding versus six-layer coding (“SOCCER” video sequence, 30 fps, 300 frames, GOP size 16).

Quantization parameters	Four layers; (CIF and three SD layers) by using the FMO		Six layers; (three CIF layers and three SD layers)		Bit-rate savings (%)
	PSNR [dB]	Bit-rate [kb/s]	PSNR [dB]	Bit-rate [kb/s]
32	36.0	2140.1	36.0	2290.1	6.6
34	35.1	1549.4	35.1	1680.1	7.8
36	34.0	1140.1	34.0	1279.4	10.9