Research Article
ADMM-EM Method for -Norm Regularized Weighted Least Squares PET Reconstruction
Table 1
Algorithmic performance including mean absolute error (MAE), cost function (Fun.), contrast (LC and HC denote that of low and high ROI, resp.), variability (Var.), running time (Time, units of seconds), and computational complexity (Comp.), in which we use [ ] to represent the best value. All experiments are executed twenty times to obtain an average value.
|