Comparison of ring artifact removal methods using flat panel detector based CT images

Table 1 Quantitative performance of the comparing algorithms

	Head phantom		Rat abdomen		Bone (figure 4(b))
Methods	PSNR	MSSIM	PSNR	MSSIM	PSNR	MSSIM
MWPN	39.04	0.97	38.16	0.96	38.73	0.93
WF	32.35	0.81	35.83	0.93	30.95	0.72
RCHT	27.96	0.82	31.71	0.83	29.79	0.71
RCP	25.48	0.77	28.91	0.78	31.05	0.73
WF with proposed pre-correction	37.39	0.94	37.40	0.95	38.25	0.93
RCHT with proposed pre-correction	38.15	0.96	40.54	0.97	39.78	0.95
RCP with proposed pre-correction	39.41	0.97	37.88	0.95	40.84	0.96
Proposed SBRC	40.67	0.98	42.03	0.99	40.95	0.96

ISSN: 1475-925X