The EM Method in a Probabilistic Wavelet-Based MRI Denoising

Figure 12

Examples subset of experiment 5. (a) Noisy images; (b) noisy images filtered by Villullas-Martin’s method; (c) noisy images filtered by Nowak’s method; (d) noisy images filtered by Donoho-Johnstone’s method.

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(b)

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(d)