Towards a high-resolution local tomography using statistical iterative reconstruction
Towards a high-resolution local tomography using statistical iterative reconstruction
复制标题
使用统计迭代重建实现高分辨率局部断层扫描
DOI：
10.1109/nssmic.2011.6153816
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
H.Kudo
中科院分区：
文献类型：
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作者：
E. A. Rashed;H. Toda;T. Sera;A. Tsuchiyama;T. Nakano;K. Uesugi;H.Kudo
同步辐射（SR）X射线显微CT是一种有效的方法，用于高分辨率成像的小物体在生物和工业中的几个应用。然而，探测器的视场很小，这将样本大小限制在几毫米内。当样本大小大于有限视场时，使用传统方法重建的图像已知遭受DC偏移和低频伪影。这个问题被称为局部层析成像或内部问题。本文介绍了一种统计迭代图像重建方法，以消除局部层析成像产生的图像伪影。所提出的方法可以用于在几个SR成像应用程序，以使扫描对象的高分辨率，同时保持由于局部断层扫描问题产生的伪影的图像质量。
Synchrotron radiation (SR) x-ray micro-CT is an effective method for high-resolution imaging of small objects with several applications in biology and industry. However, the detector field of view is tiny, which limits the sample size to a few millimeters. When the sample size is larger than the limited field of view, reconstructed images, using conventional methods, known to suffer from DC-shift and low-frequency artifacts. This problem is known as local tomography or interior problem. In this paper we introduce a statistical iterative image reconstruction method to eliminate image artifacts produced from local tomography. The proposed method can be used in several SR imaging applications to enable a high resolution of the scanned object while preserving the image quality from artifacts produced due to the local tomography problem.
盲对象支持下截断 CT 投影数据的迭代感兴趣区域重建
DOI：
--
发表时间：
2009
期刊：
日本医用画像工学会誌 Medical Imaging Technology
影响因子：
--
作者：
E. A. Rashed;H. Kudo;F. Noo
通讯作者：
F. Noo