An Adaptive Motion Estimation Scheme for Video Coding

Table 4

Performance of the proposed algorithm compared.

Video sequence name	QP	The proposed algorithm compared to UMHexagonS			The proposed algorithm compared to NUMHexagonS
		ME time; Gain (%)	Y PSNR; Gain (%)	Bits rate; Gain (%)	ME time; Gain (%)	Y PSNR; Gain (%)	Bits rate; Gain (%)
CREW	28	−25.85	−0.05	1.39	−14.65	−0.04	1.08
	32	−25.83	−0.03	1.53	−14.37	−0.02	1.28
	36	−26.76	−0.04	0.71	−15.04	0.11	0.38
	40	−28.52	−0.06	0.50	−16.81	−0.08	−0.08
HARBOUR	28	−26.24	−0.01	−0.10	−17.50	0.03	−0.05
	32	−24.60	−0.05	0.65	−16.53	0.03	0.40
	36	−22.26	−0.03	0.51	−15.17	−0.01	−0.08
	40	−21.20	−0.03	0.29	−14.33	0.09	0.63
ICE	28	−16.41	−0.10	1.54	−9.12	−0.03	0.98
	32	−17.52	0.01	1.51	−9.55	−0.09	1.14
	36	−18.15	−0.14	0.59	−10.08	0.06	0.88
	40	−17.89	−0.05	0.60	−8.91	−0.29	0.34
MOBILE	28	−21.23	−0.01	0.61	−11.78	−0.01	0.28
	32	−21.00	0.05	0.84	−11.62	0.03	0.78
	36	−21.30	−0.09	0.12	−11.92	−0.08	−0.37
	40	−21.65	−0.04	0.29	−12.25	0.00	0.43
CITY	28	−15.97	−0.05	0.17	−9.51	−0.05	−0.39
	32	−17.60	0.02	0.53	−10.11	0.05	0.37
	36	−18.64	0.01	0.16	−10.73	0.00	1.21
	40	−19.28	−0.04	0.07	−11.72	−0.06	0.58
COASTGUARD	28	−18.43	−0.08	−0.08	−11.55	−0.03	0.40
	32	−18.10	−0.04	−0.04	−18.10	−0.04	0.55
	36	−18.76	−0.04	−0.04	−18.76	−0.04	0.53
	40	−17.54	0.00	0.00	−17.54	0.00	0.15