Confidence-based anisotropic filtering of magnetic resonance images.
Wiener filter restoration, followed by a difference operator, is used to estimate the standard deviation of the noise based on the additive noise assumption. Simulation studies show that a 5 /spl times/ 5 Wiener filter gives an estimate of noise within a 5% error margin. A careful examination of the...
| Pubblicato in: | IEEE Engineering in medicine and biology magazine 21, 5 (2002). |
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| Natura: | Articolo |
| Lingua: | English |
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