Video Enhancement from Multiple Compressed Copies in Transform Domain

EURASIP Journal on Image and Video Processing

Table 7 Average PSNR results (in dB) of the best input copy and the video reconstructed by the proposed method from multiple copies of a situation comedy compressed with different GOP structures and different target bit rates.

Sequence	No. of	500–700–900 (kbits/s)			900–1100–1300 (kbits/s)
	copies	Best copy	Proposed	Gain	Best copy	Proposed	Gain
Ballroom dancing	2	37.48	38.11	0.63	39.51	40.50	0.99
	3	39.01	39.78	0.77	40.46	41.74	1.28
Superbowl	2	37.23	38.02	0.79	39.38	40.50	1.12
	3	38.96	39.84	0.88	40.40	41.86	1.46
Football	2	36.44	37.11	0.67	38.56	39.65	1.09
	3	38.00	38.85	0.85	39.46	40.86	1.40
London	2	36.89	37.44	0.55	38.67	39.60	0.93
	3	37.67	38.75	1.08	38.97	40.62	1.65
Routine	2	34.68	34.95	0.27	36.80	37.48	0.68
	3	35.50	36.34	0.84	37.21	38.58	1.37
Rugby	2	33.35	33.76	0.41	35.54	36.38	0.84
	3	34.82	35.61	0.79	36.51	37.84	1.33
Soldier	2	36.70	37.38	0.68	38.62	39.78	1.16
	3	38.44	39.24	0.80	40.63	42.43	1.80
Vegas	2	35.73	36.12	0.39	38.01	38.84	0.83
	3	36.86	37.69	0.83	38.57	40.01	1.44