电子学报Issue(7)：1319-1323,5.DOI:10.3969/j.issn.0372-2112.2013.07.012
基于结构保持的 MR 图像运动伪影快速抑制方法
The Method of MR Images Motion Artifacts Fast Suppression Based on Structure Remains
摘要
Abstract
The current methods of motion artifact suppression in magnetic resonance imaging (MRI) are generally based on the K-space data .In this paper ,an image post-processing method is proposed ,which can directly apply to the MR images and cor-rect the motion artifact .We designed a model based on non-local means total variational (TV ) method ,which consists of the non-local regularization term and patch similarity fidelity term .The regularization term can keep the image structure while correcting the motion artifact .Introduce the anisotropic diffusion structure tensor to the patch similarity fidelity term as its weight function ,which can implement different diffusions process in different regions and can remain the details of the image while removing the motion ar-tifact .The numerical scheme uses the split Bregman method .Experiments showed that the motion artifact was effectively reduced and the valuable details of images were remained and the arithmetic speed was improved .关键词
运动伪影/磁共振成像/结构保持/非局部均值Key words
motion artifact/MRI (magnetic resonance imaging)/structure remain/non-local means分类
信息技术与安全科学引用本文复制引用
何宁,吕科,王祎雪..基于结构保持的 MR 图像运动伪影快速抑制方法[J].电子学报,2013,(7):1319-1323,5.基金项目
国家自然科学基金（No ．61070120，No ．61271435）；北京市自然科学基金（No ．4112021）；北京市教委科技面上项目（No ．KM2011111417015）；国家973重点基础研究发展规划（No ．2010CB731804-1，No ．2011CB706901-4）；北京市属高等学校创新团队建设与教师职业发展计划项目 （）
