| X-CT金属伪影校正方法综述 |
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| 引用本文： | 李庆亮,闫镔,孙红胜,李磊,张峰.X-CT金属伪影校正方法综述[J].CT理论与应用研究,2011,20(1):131-140. |
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| 作者姓名： | 李庆亮 闫镔 孙红胜 李磊 张峰 |
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| 作者单位： | 信息工程大学电子科学与技术系,郑州,450002 |
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| 基金项目： | 国家高技术研究发展计划"863计划"，河南省基础与前沿技术研究计划项目 |
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| 摘 要： | X-CT成像系统中,当被检测物体中含有金属等高密度物质时,对投影数据重建后,重建图像中将出现放射状伪影或带状伪影.这些伪影严重影响了图像的质量,给人们的判断带来极大困难.金属伪影的校正已成为CT技术中的研究难点和热点.本文阐述了金属伪影产生的原因,就近些年出现的金属伪影校正方法进行归纳总结,并对金属伪影校正方法研究的前...
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| 关 键 词： | 计算机断层成像 金属伪影 插值法 达代法 |
Review of Metal Artifacts Correction Methods on X-ray Computed Tomography |
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| LI Qing-liang,YAN Bin,SUN Hong-sheng,LI Lei,ZHANG Feng.Review of Metal Artifacts Correction Methods on X-ray Computed Tomography[J].Computerized Tomography Theory and Applications,2011,20(1):131-140. |
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| Authors: | LI Qing-liang YAN Bin SUN Hong-sheng LI Lei ZHANG Feng |
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| Institution: | LI Qing-liang,YAN Bin,SUN Hong-sheng,LI Lei,ZHANG Feng Department of Electronic Science and Technology,Information Engineering University,Zhengzhou 450002,China |
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| Abstract: | In the system of CT imaging,for the objects with high density metal,CT images reconstructed by the standard filtered-back-projection(FBP) algorithm generate significant streak artifacts. These artifacts seriously influence image quality and bring huge difficulties for judgment. Correction method of metal artifacts has become the hot and difficult issue of CT technique. The paper formulates the cause of metal artifacts,and sums up the correction methods of metal artifacts developed this year,at last,discusse... |
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| Keywords: | CT metal artifacts interpolation methods iterative reconstruction methods |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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