Abstract

MARTIN, ADRIAN; GARAMENDI, JUAN F.  and  SCHIAVI, EMANUELE. MR-DTI RICIAN DENOISING. Dyna rev.fac.nac.minas [online]. 2013, vol.80, n.182, pp.25-30. ISSN 0012-7353.

In this work we tackle the problem of Magnetic Resonance Images (MRI) Rician denoising to enhance Diffusion Tensor Image (DTI) reconstruction. In a variational framework based on the Total Variation operator, the model of the Rician noise leads to the resolution of a highly nonlinear equation associated to the energy minimization problem. An iterative algorithm is proposed and validated on synthetic images. Finally the application to real Diffusion Weighted Images (DWI) is considered.

Keywords : MRI; DWI; DTI; Rician noise; Variational.

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