Accurate Sparse-Projection Image Reconstruction via Nonlocal TV Regularization

Table 2

Evaluations of clinical image reconstruction.

	RMSE	MSSIM	Iterations	Time (s)
FBP	0.2260	0.6779	—	0.0310
EM	0.0581	0.7190	100	2.9973
ASD-POCS	0.0562	0.7371	100	6.1286
NLTV	0.0403	0.8214	100	84.53