Table 6 Values of maximum, minimum, metal-free region TV, and NPE in reconstructions of bag #5 (New threshold value to segment the metal image and new β1 = 0.0002)
Iterations | β1 | β2 | Min | Max | TV | NPE |
|---|---|---|---|---|---|---|
0, raw FBP | NA | NA | −0.0347 | 0.4676 | 472.6624 | 0.3366 |
1000 | 0.0002 | 0 | −0.0342 | 0.5251 | 165.2475 | 0.0190 |
1000 | 0 | 5 | −0.0030 | 0.5243 | 180.0589 | 0.00015141 |
1000 | 0.0002 | 5 | −0.0031 | 0.5252 | 144.7916 | 0.0011 |