A Smoothed -Norm and -Norm Regularization Algorithm for Computed Tomography

Table 2

Comparison of two algorithms with the same tolerance of relative error 0.05.

Phantom	Regularization		Regularization		CPU Time Saved
	No. Iter.	Time(s)	No. Iter.	Time(s)
Shepp-Logan	129	17.4	86	7.4	58%
Cardiac	194	24.9	178	19.4	22%