The EM Method in a Probabilistic Wavelet-Based MRI Denoising

Human body heat emission and others external causes can interfere in magnetic resonance image acquisition and produce noise. In this kind of images, the noise, when no signal is present, is Rayleigh distributed and its wavelet coefficients can be approximately modeled by a Gaussian distribution. Noi...

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Bibliographic Details
Main Authors: Martin-Fernandez, Marcos, Villullas, Sergio
Format: Online
Language:English
Published: Hindawi Publishing Corporation 2015
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4450882/