Simulation tools for two-dimensional experiments in x-ray computed tomography using the FORBILD head phantom.
Simulation tools for two-dimensional experiments in x-ray computed tomography using the FORBILD head phantom.
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DOI：
10.1088/0031-9155/57/13/n237
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发表时间：
2012-07-07
影响因子：
3.5
通讯作者：
Hornegger J
中科院分区：
文献类型：
--
作者：
Yu Z;Noo F;Dennerlein F;Wunderlich A;Lauritsch G;Hornegger J
数学模型对于 X 射线计算机断层扫描 (CT) 中图像重建算法的开发和早期评估至关重要。本文提供了使用二维 (2D) 模型进行计算机模拟的工具，该模型通过 FORBILD 头部模型模拟中央轴向切片。 FORBILD 头部模型于 1999 年推出，以满足更强大的测试需求，现在被许多人视为黄金标准。然而，简单的 Shepp-Logan 体模仍然被从事二维图像重建的研究人员大量使用。 FORBILD 头部模型的普遍接受可能因其明显更高的复杂性而受到阻碍：允许使用 Shepp-Logan 模型进行计算机模拟的软件并不容易适用于 FORBILD 头部模型。这里提供的工具可以解决这个问题。它们设计用于与 Matlab® 以及 FreeMat 和 Octave 等开源变体一起使用，这些变体都在学术界和工业界广泛使用。首先，感兴趣的用户只需将此 PDF 文档中的代码复制并粘贴到 Matlab® M 文件中即可。
Mathematical phantoms are essential for the development and early-stage evaluation of image reconstruction algorithms in x-ray computed tomography (CT). This note offers tools for computer simulations using a two-dimensional (2D) phantom that models the central axial slice through the FORBILD head phantom. Introduced in 1999, in response to a need for a more robust test, the FORBILD head phantom is now seen by many as the gold standard. However, the simple Shepp-Logan phantom is still heavily used by researchers working on 2D image reconstruction. Universal acceptance of the FORBILD head phantom may have been prevented by its significantly-higher complexity: software that allows computer simulations with the Shepp-Logan phantom is not readily applicable to the FORBILD head phantom. The tools offered here address this problem. They are designed for use with Matlab®, as well as open-source variants, such as FreeMat and Octave, which are all widely used in both academia and industry. To get started, the interested user can simply copy and paste the codes from this PDF document into Matlab® M-files.