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A novel beam hardening correction method requiring no prior knowledge, incorporated in an iterative reconstruction algorithm

机译:一种不需要先验知识的新型射束硬化校正方法,并包含在迭代重建算法中

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摘要

This paper presents a novel beam hardening correction algorithm for X-ray computed tomography which can be used in case no information about the beam spectrum or the material properties is available. This correction is applied in an iterative reconstruction algorithm and takes the effect of beam hardening into account during the reconstruction. The beam hardening is modeled and incorporated in the forward projector of the simultaneous algebraic reconstruction technique (SART). The inclusion of the beam hardening correction does not require any additional iterations compared to standard SART. The algorithm is tested on datasets of several samples and significantly reduces the beam hardening artifacts in these datasets.
机译:本文提出了一种用于X射线计算机断层扫描的新型束硬化校正算法,该算法可在没有有关束光谱或材料特性的信息的情况下使用。此校正应用于迭代重建算法中,并在重建过程中考虑了光束硬化的影响。对束硬化进行建模,并将其合并到同时代数重构技术(SART)的前向投影仪中。与标准SART相比,包含束硬化校正不需要任何其他迭代。该算法在几个样本的数据集上进行了测试,并显着减少了这些数据集中的光束硬化伪影。

著录项

  • 来源
    《NDT & E international》 |2012年第2012期|p.68-73|共6页
  • 作者单位

    Ghent University, Department of Physics and Astronomy, Proeftuinstraat 86, 9000 Cent, Belgium;

    Ghent University, Department of Physics and Astronomy, Proeftuinstraat 86, 9000 Cent, Belgium;

    Ghent University, Department of Physics and Astronomy, Proeftuinstraat 86, 9000 Cent, Belgium;

    Ghent University, Department of Physics and Astronomy, Proeftuinstraat 86, 9000 Cent, Belgium,Ghent University, Department of Soil Management and Soil Care, Coupure Links 653, 9000 Cent, Belgium;

    Ghent University, Department of Geology and Soil Science, Krijgslaan 281-S8, 9000 Gent, Belgium;

    Ghent University, Department of Physics and Astronomy, Proeftuinstraat 86, 9000 Cent, Belgium;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    beam hardening correction; micro-CT; iterative reconstruction;

    机译:光束硬化校正;微型CT迭代重建;

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