磁共振图像幅度噪声的估计。
Estimation of the noise in magnitude MR images.
作者信息
Sijbers J, den Dekker A J, Van Audekerke J, Verhoye M, Van Dyck D
机构信息
Department of Physics, University of Antwerp, Belgium.
出版信息
Magn Reson Imaging. 1998;16(1):87-90. doi: 10.1016/s0730-725x(97)00199-9.
PMID:9436952
Abstract
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.
摘要
幅度磁共振数据呈莱斯分布。在本笔记中，提出了一种新方法来估计此类数据分布的图像噪声方差。该方法基于双图像采集，从而利用莱斯分布矩的知识。
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