From: Rician nonlocal means denoising for MR images using nonparametric principal component analysis
 | σ= 10 | σ = 20 | σ = 30 | σ = 40 |
---|---|---|---|---|
Brain image | Â | Â | Â | Â |
NLM | 287.2 | 88.4 | 35.12 | 17.17 |
PCA-NLM | 288.6 | 85.1 | 38.21 | 18.75 |
NPCA-NLM | 302.7 | 93.2 | 38.66 | 18.81 |
Body image | Â | Â | Â | Â |
NLM | 304.0 | 59.5 | 22.35 | 11.55 |
PCA-NLM | 303.9 | 60.2 | 22.96 | 11.58 |
NPCA-NLM | 313.9 | 59.5 | 23.01 | 11.84 |
Knee image | Â | Â | Â | Â |
NLM | 236.7 | 98.8 | 44.64 | 22.59 |
PCA-NLM | 255.9 | 103.3 | 47.18 | 24.97 |
NPCA-NLM | 266.4 | 105.4 | 46.83 | 25.20 |