Research Article

Image Reconstruction Using Analysis Model Prior

Table 6

Comparison results of RLNEs using two- and four-direction ICD.

Test image
Directional components
Method
ICD-TR ICD-TH ICD-WT

Shepp Logan Two 0.0254 0.0205 0.0169
Four 0.0098 0.0042 0.0037

Brain-1 Two 0.0388 0.0354 0.0321
Four 0.0309 0.0267 0.0257

Brain-2 Two 0.0661 0.0627 0.0607
Four 0.0550 0.0514 0.0491