Estimation of the noise in magnitude MR images

被引：195
|
作者：
Sijbers, J [1 ]
den Dekker, AJ [1 ]
Van Audekerke, J [1 ]
Verhoye, M [1 ]
Van Dyck, D [1 ]
机构：
[1] Univ Antwerp, Dept Phys, B-2020 Antwerp, Belgium
来源：
MAGNETIC RESONANCE IMAGING | 1998年 / 16卷 / 01期
关键词：
noise estimation; double acquisition; Rice distribution;
D O I：
10.1016/S0730-725X(97)00199-9
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
Magnitude magnetic resonance data are Rician distributed. In this note a new method is proposed to estimate the image noise variance for this type of data distribution, The method is based on a double image acquisition, thereby exploiting the knowledge of the Rice distribution moments. (C) 1998 Elsevier Science Inc.
引用
收藏
页码：87 / 90
页数：4
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