Table 6.
Quantitative evaluation results of the thorax phantom studies with noisy projections.
| PSNR | NMAD | SSIM | ||
|---|---|---|---|---|
| Bone density | Image-based Method | 23.09 | 0.9797 | 0.9819 |
| EDEC Method | 24.44 | 0.7131 | 0.9824 | |
| NLM Method | 21.62 | 1.3316 | 0.9793 | |
| WLS-NLM Method | 21.49 | 1.3630 | 0.9714 | |
| MDIR Method | 22.41 | 1.0439 | 0.9759 | |
| E-SART Method | 28.57 | 0.3509 | 0.9925 | |
| Proposed Method | 35.60 | 0.1714 | 0.9948 | |
| Water density | Image-based Method | 15.65 | 0.7818 | 0.8432 |
| EDEC Method | 14.07 | 0.9839 | 0.8459 | |
| NLM Method | 15.92 | 0.7509 | 0.8425 | |
| WLS-NLM Method | 15.63 | 0.7846 | 0.8432 | |
| MDIR Method | 15.21 | 0.8332 | 0.8514 | |
| E-SART Method | 16.41 | 0.6931 | 0.8497 | |
| Proposed Method | 24.92 | 0.1957 | 0.8824 | |
| 70 KeV μ–image | Image-based Method | 21.86 | 0.5966 | 0.8684 |
| EDEC Method | 18.11 | 1.0058 | 0.8566 | |
| NLM Method | 20.52 | 0.7732 | 0.8687 | |
| WLS-NLM Method | 19.78 | 0.8404 | 0.8642 | |
| MDIR Method | 17.62 | 1.0110 | 0.8532 | |
| E-SART Method | 21.06 | 0.7141 | 0.8571 | |
| Proposed Method | 31.73 | 0.1575 | 0.9370 | |