Research Article
Nonconvex Compressed Sampling of Natural Images and Applications to Compressed MR Imaging
Table 5
Results on MR images in Figure
4 by three methods (SR = 21.59%,
,
).
| Image no. | Method | Exp. result | SNR | Rel. err. | Iter |
| Figure 4(a) | CTVCS [6] | 21.3881 | 1.23% | 57 | TVCMRI [11] | 21.9085 | 1.05% | 71 | HQRCSparET | | | 64 | Figure 4(b) | CTVCS [6] | 24.4943 | 0.91% | 56 | TVCMRI [11] | 25.1557 | 0.81% | 70 | HQRCSparET | | | 66 | Figure 4(c) | CTVCS [6] | 23.6254 | 1.20% | 57 | TVCMRI [11] | 23.9760 | 1.16% | 71 | HQRCSparET | | | 65 | Figure 4(d) | CTVCS [6] | 19.5002 | 1.64% | 57 | TVCMRI [11] | 19.9529 | 1.57% | 70 | HQRCSparET | | | 64 | Figure 4(e) | CTVCS [6] | 17.8911 | 2.76% | 55 | TVCMRI [11] | 18.0497 | 2.57% | 57 | HQRCSparET | | | 65 | Figure 4(f) | CTVCS [6] | 19.0326 | 2.60% | 54 | TVCMRI [11] | 20.0130 | 2.49% | 56 | HQRCSparET | | | 66 |
|
|