Table 1. Overall performance of the proposed algorithm

Sequence	Target bitrate	Resolution	Proposed Two-Step Algorithm				HM 15.0
Sequence	Target bitrate	Resolution	δ	Encoding time	Bit rate	DMOS	Encoding time	Bit rate	DMOS
BQ Terrace(100 frames)	4 Mbps	1920×1080	1	4701.68	3981.07	9.64	4768.78	4018.86	9.80
			2	4759.44	4000.83	9.65
			5	4768.78	4018.86	9.70
			10	4689.47	3976.23	9.78
Park Scene(100 frames)	4 Mbps	1920×1080	1	7475.20	4001.52	8.40	8820.74	4097.75	8.94
			2	7422.98	4125.13	8.71
			5	7441.77	4065.76	9.09
			10	7497.74	4000.03	9.22
Cactus(100 frames)	4 Mbps	1920×1080	1	7999.79	4006.26	8.63	8083.72	4007.16	8.53
			2	7961.22	4006.26	8.76
			5	8083.72	4007.16	8.57
			10	8062.60	4006.40	8.73