Fig. 3
From: Noise reduction of diffusion tensor images by sparse representation and dictionary learning
Denoising results for simulated datasets. The first row is the original diffusion weighted image. The second and third rows are the fractional anisotropy maps. The column a is the original gold standard and the column b is the noisy data. The column c, d and e are the denoising results using the MNLM, SR and our proposed method