A MRI Denoising Method Based on 3D Nonlocal Means and Multidimensional PCA

Figure 6

The denoised results with different order of MPCA and NLM3D (5% Rician noise). (a) First apply MPCA and then apply NLM3D but in (b) first apply NLM3D and then apply MPCA.

(a) MPCA + NLM3D

(b) NLM3D + MPCA