. Author manuscript; available in PMC: 2018 Jan 1.

Published in final edited form as: IEEE Trans Med Imaging. 2017 Jan;36(1):1–16. doi: 10.1109/TMI.2016.2564989

TABLE IV.

List of fixed parameters

Parameter	Value	Meaning
(ζ_M, ζ_P)	(3,10)	Rescaling of MR and PET operator
η	10	Ratio between primal and dual stepsize
σ	10/ $\sqrt{12}$	Initialization of primal stepsize
θ	0.95	Stepsize reduction factor
(α₀,α₁)	( $\sqrt{2}$ , 1)	TGV weights