Robust Rician noise estimation for MR images
نویسندگان
چکیده
منابع مشابه
Robust Rician noise estimation for MR images
In this paper, a new object-based method to estimate noise in magnitude MR images is proposed. The main advantage of this object-based method is its robustness to background artefacts such as ghosting. The proposed method is based on the adaptation of the Median Absolute Deviation (MAD) estimator in the wavelet domain for Rician noise. The MAD is a robust and efficient estimator initially propo...
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The estimation of the noise level in MR images is used to assess the consistency of statistical analysis or as an input parameter in some image processing techniques. Most of the existing Rician noise estimation methods are based on background statistics, and as such are sensitive to ghosting artifacts. In this paper, a new object-based method is proposed. This method is based on the adaptation...
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ژورنال
عنوان ژورنال: Medical Image Analysis
سال: 2010
ISSN: 1361-8415
DOI: 10.1016/j.media.2010.03.001