From: Rician nonlocal means denoising for MR images using nonparametric principal component analysis
 | σ= 10 | σ = 20 | σ = 30 | σ = 40 |
---|---|---|---|---|
Brain mage | Â | Â | Â | Â |
NLM | 4.42 | 9.03 | 14.62 | 21.04 |
PCA-NLM | 4.40 | 9.07 | 14.09 | 20.06 |
NPCA-NLM | 4.29 | 8.88 | 14.02 | 20.03 |
Body image | Â | Â | Â | Â |
NLM | 5.06 | 12.65 | 20.97 | 29.62 |
PCA-NLM | 5.06 | 12.59 | 20.63 | 29.35 |
NPCA-NLM | 4.99 | 12.64 | 20.65 | 29.11 |
Knee image | Â | Â | Â | Â |
NLM | 4.93 | 7.98 | 11.84 | 16.66 |
PCA-NLM | 4.77 | 7.82 | 11.46 | 15.66 |
NPCA-NLM | 4.70 | 7.78 | 11.58 | 15.59 |