Table 2.
Comparison of SD of Original Image and Image Processed by the QDS, the NLK and the Proposed Algorithm for Various DFOV
| Standard deviation (HU) | ||||
|---|---|---|---|---|
| DFOV (cm) algorithm | Original image | QDS | NLK | Proposed |
| 10 | 10.98 | 10.34 | 9.91 | 7.79 |
| 15 | 10.70 | 9.60 | 8.74 | 7.53 |
| 20 | 10.57 | 8.80 | 7.32 | 7.32 |
| 25 | 10.53 | 8.28 | 5.97 | 7.10 |
| 30 | 10.59 | 7.74 | 5.04 | 7.05 |
| 35 | 10.64 | 7.08 | 4.29 | 7.06 |