Relaxation Factor Optimization for Common Iterative Algorithms in Optical Computed Tomography

Table 1

Comparison of the antinoise ability of the ART algorithm for two tested images.

Gaussian noise	Bimodal asymmetrical image		Three-peak asymmetrical image
	Average relative errors (%)	Root-mean-square relative errors (%)	Average relative errors (%)	Root-mean-square relative errors (%)
(0, 0.025)	1.04	7.75	1.13	8.18
(0, 0.050)	1.21	8.38	1.28	8.82
(0, 0.075)	1.63	10.92	1.82	11.35
(0, 0.100)	1.96	12.66	2.07	13.70
(0, 0.125)	2.15	14.44	2.56	16.21