. Author manuscript; available in PMC: 2015 Feb 4.

Published in final edited form as: IEEE Trans Med Imaging. 2014 Oct 28;34(2):678–689. doi: 10.1109/TMI.2014.2365179

Table III.

Comparison of the noise standard deviation for different regularizers method. All values are in Hounsfield units (HU).

	Uniform	A-REG	R-REG (38)	N-REG (51)

Plexiglas™ Insert (center)	14.0	13.7	13.7	13.6
Plexiglas™ Insert (right)	18.8	16.0	16.2	16.4
Plexiglas™ Insert (left)	15.1	14.4	14.5	14.9
Phantom Wall (left)	15.4	9.3	9.5	11.8
Phantom Wall (right)	16.9	8.8	6.8	10.1
Phantom Wall (top)	17.4	8.7	8.8	10.7
Phantom Wall (bottom)	16.1	7.7	8.8	10.9

Average	16.2±1.6	11.2±3.4	11.2 ±3.6	12.6 ±2.4