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Table 2 Values of maximum, minimum, metal-free region TV, and NPE in reconstructions of bag #2

From: A projection-domain iterative algorithm for metal artifact reduction by minimizing the total-variation norm and the negative-pixel energy

Iterations β1 β2 Min Max TV NPE
0, raw FBP NA NA −0.3000 1.3420 1148.4 8.3468
1000 0.004 0 −0.11825 1.1570 834.2642 3.1681
1000 0 5 −0.0196 1.3585 1150.3 0.1340
1000 0.004 5 −0.0206 1.3130 906.2427 0.1476