Literature DB >> 9735899

Maximum-likelihood estimation of Rician distribution parameters.

J Sijbers1, A J den Dekker, P Scheunders, D Van Dyck.   

Abstract

The problem of parameter estimation from Rician distributed data (e.g., magnitude magnetic resonance images) is addressed. The properties of conventional estimation methods are discussed and compared to maximum-likelihood (ML) estimation which is known to yield optimal results asymptotically. In contrast to previously proposed methods, ML estimation is demonstrated to be unbiased for high signal-to-noise ratio (SNR) and to yield physical relevant results for low SNR.

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Year:  1998        PMID: 9735899     DOI: 10.1109/42.712125

Source DB:  PubMed          Journal:  IEEE Trans Med Imaging        ISSN: 0278-0062            Impact factor:   10.048


  32 in total

1.  Diffusion time dependence of magnetic resonance diffusion signal decays: an investigation of water exchange in human brain in vivo.

Authors:  Marzieh Nezamzadeh
Journal:  MAGMA       Date:  2011-11-24       Impact factor: 2.310

2.  Diffusion MRI noise mapping using random matrix theory.

Authors:  Jelle Veraart; Els Fieremans; Dmitry S Novikov
Journal:  Magn Reson Med       Date:  2015-11-24       Impact factor: 4.668

3.  Optimized Diffusion-Weighting Gradient Waveform Design (ODGD) formulation for motion compensation and concomitant gradient nulling.

Authors:  Óscar Peña-Nogales; Yuxin Zhang; Xiaoke Wang; Rodrigo de Luis-Garcia; Santiago Aja-Fernández; James H Holmes; Diego Hernando
Journal:  Magn Reson Med       Date:  2018-11-05       Impact factor: 4.668

4.  Optimization of the SNR-resolution tradeoff for registration of magnetic resonance images.

Authors:  Shoan C Kale; Jason P Lerch; R Mark Henkelman; X Josette Chen
Journal:  Hum Brain Mapp       Date:  2008-10       Impact factor: 5.038

5.  Comparative evaluation of active contour model extensions for automated cardiac MR image segmentation by regional error assessment.

Authors:  Duy Nguyen; Karen Masterson; Jean-Paul Vallée
Journal:  MAGMA       Date:  2007-03-06       Impact factor: 2.310

6.  Least squares for diffusion tensor estimation revisited: propagation of uncertainty with Rician and non-Rician signals.

Authors:  Antonio Tristán-Vega; Santiago Aja-Fernández; Carl-Fredrik Westin
Journal:  Neuroimage       Date:  2011-10-08       Impact factor: 6.556

7.  Restoration of DWI data using a Rician LMMSE estimator.

Authors:  Santiago Aja-Fernandez; Marc Niethammer; Marek Kubicki; Martha E Shenton; Carl-Fredrik Westin
Journal:  IEEE Trans Med Imaging       Date:  2008-10       Impact factor: 10.048

8.  A RICIAN MIXTURE MODEL CLASSIFICATION ALGORITHM FOR MAGNETIC RESONANCE IMAGES.

Authors:  Snehashis Roy; Aaron Carass; Pierre-Louis Bazin; Jerry L Prince
Journal:  Proc IEEE Int Symp Biomed Imaging       Date:  2009

9.  A variable echo-number method for estimating R2 in MRI-based polymer gel dosimetry.

Authors:  Yoichi Watanabe; Hitoshi Kubo
Journal:  Med Phys       Date:  2011-02       Impact factor: 4.071

10.  Off-line determination of the optimal number of iterations of the robust anisotropic diffusion filter applied to denoising of brain MR images.

Authors:  Ricardo J Ferrari
Journal:  Med Biol Eng Comput       Date:  2012-11-03       Impact factor: 2.602

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