Research Article
Fast Compressed Sensing MRI Based on Complex Double-Density Dual-Tree Discrete Wavelet Transform
Table 2
Numerical results for a spine MR image using different reconstructed methods employing Gaussian random sampling mask with
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| Sampling ratio | Algorithms | SNR (dB) | Rel.Err (%) | SSIM |
| 15% | FISTA-DWT | 13.19 | 11.77 | 0.7555 | FISTA-CDT | 14.35 | 11.55 | 0.7955 | FISTA-CDDDT | 17.32 | 8.34 | 0.8694 |
| 18% | FISTA-DWT | 16.08 | 7.48 | 0.8349 | FISTA-CDT | 17.68 | 7.26 | 0.8656 | FISTA-CDDDT | 19.51 | 3.57 | 0.9170 |
| 20% | FISTA-DWT | 18.28 | 3.07 | 0.8937 | FISTA-CDT | 20.48 | 2.43 | 0.9301 | FISTA-CDDDT | 20.78 | 2.40 | 0.9435 |
| 25% | FISTA-DWT | 19.49 | 2.30 | 0.9196 | FISTA-CDT | 21.78 | 1.88 | 0.9520 | FISTA-CDDDT | 21.80 | 1.81 | 0.9599 |
| 28% | FISTA-DWT | 19.05 | 2.21 | 0.9262 | FISTA-CDT | 22.22 | 1.90 | 0.9551 | FISTA-CDDDT | 22.27 | 1.76 | 0.9262 |
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