Accurate Sparse-Projection Image Reconstruction via Nonlocal TV Regularization

Table 1

Evaluations of numerical phantom reconstruction.

	RMSE	MSSIM	Iterations	Time (s)
FBP	0.4073	0.4568	—	0.0290
EM	0.1548	0.7896	100	2.3878
ASD-POCS	0.0062	0.9932	100	5.9048
NLTV	0.0022	0.9976	100	69.87