Research Article
Image Reconstruction Using Analysis Model Prior
Table 1
RLNE results of test reconstruction methods with random undersampling scheme.
| Test image | Sampling ratio | Method | SparseMRI | NLTV | ISD-TV | SDBS-TV | ICD-TR | ICD-TH | ICD-WT |
| Shepp Logan | RL = 10 | 0.2618 | 0.1451 | 0.2338 | 0.1267 | 0.0517 | 0.0390 | 0.0258 | RL = 11 | 0.2014 | 0.1196 | 0.1852 | 0.0892 | 0.0221 | 0.0117 | 0.0109 | RL = 12 | 0.1494 | 0.0873 | 0.1009 | 0.0522 | 0.0098 | 0.0042 | 0.0037 |
| Brain-1 | SR = 0.1 | 0.1773 | 0.1529 | 0.1540 | 0.1480 | 0.1362 | 0.1213 | 0.1131 | SR = 0.2 | 0.1075 | 0.0801 | 0.0803 | 0.0681 | 0.0653 | 0.0601 | 0.0549 | SR = 0.3 | 0.0615 | 0.0385 | 0.0426 | 0.0371 | 0.0309 | 0.0267 | 0.0257 | SR = 0.4 | 0.0346 | 0.0183 | 0.0269 | 0.0178 | 0.0151 | 0.0142 | 0.0139 | SR = 0.5 | 0.0224 | 0.0054 | 0.0184 | 0.0085 | 0.0052 | 0.0047 | 0.0045 |
| Brain-2 | SR = 0.1 | 0.2036 | 0.2057 | 0.1746 | 0.1681 | 0.1554 | 0.1477 | 0.1436 | SR = 0.2 | 0.1396 | 0.1154 | 0.1016 | 0.0990 | 0.0932 | 0.0875 | 0.0834 | SR = 0.3 | 0.0870 | 0.0710 | 0.0677 | 0.0583 | 0.0550 | 0.0514 | 0.0491 | SR = 0.4 | 0.0587 | 0.0368 | 0.0447 | 0.0411 | 0.0352 | 0.0313 | 0.0302 | SR = 0.5 | 0.0400 | 0.0302 | 0.0321 | 0.0249 | 0.0223 | 0.0206 | 0.0198 |
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