Optimized Sample Adaptive Offset Filter in HEVC

Table 5

BD degradation: HM 16.20 + SCM 8.8 vs. proposed system.

Test set	Y BD-rate degradation (%) S = 8 frames
	AI		RA		LDB		LDP
	HM 16.20 + SCM 8.8	Proposed	HM 16.20 + SCM 8.8	Proposed	HM 16.20 + SCM 8.8	Proposed	HM 16.20 + SCM 8.8	Proposed
Class A	0.6	0.1	2.5	0.3	—	—	—	—
Class B	0.5	0.1	2.3	0.3	2.5	0.6	11.5	1.3
Class C	0.7	0.1	1.2	0.5	2.1	0.5	7.5	1.1
Class D	0.4	0.1	0.5	0.2	0.9	0.4	4.7	0.7
Class E	0.6	0.2	—	—	2.1	0.2	11.5	0.3
Class F	1.3	0.5	2.8	0.6	5.5	0.8	12.5	1.3
Avg	0.68	0.18	1.86	0.38	2.62	0.5	9.54	0.94