支持约束运动伪影校正的磁共振成像

Signal Recovery and Synthesis Pub Date : 1900-01-01 DOI:10.1364/srs.1995.rtua4

J. Fienup, J. E. Van Buhler

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引用次数: 0

摘要

在磁共振成像(MRI)数据集的收集过程中，运动会导致相位误差，从而导致图像的涂抹或重影。本文提出了一种修正平移运动误差的新算法。它遵循与梯度搜索方法相同的原理，我们发明了梯度搜索方法来确定哈勃太空望远镜的像差[1]和纠正合成孔径雷达的相位误差[2]。

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Support-Constrained Motion-Artifact Correction for Magnetic Resonance Imaging

Motion during the collection of a magnetic resonance imaging (MRI) data set causes phase errors which result in a smearing or ghosting of the image. In this paper we present a new algorithm for correcting translational motion errors. It follows the same philosophy as the gradient search approaches that we invented to determine the aberrations of the Hubble Space Telescope [1] and to correct phase errors for synthetic-aperture radar [2].

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Signal Recovery and Synthesis

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