X-ray computed tomography has many applications in materials science and non-destructive testing. While the standard filtered back-projection reconstruction of the radiographic datasets is fast and simple, it typically fails in returning accurate results from missing or inconsistent projections. Among the alternative techniques that have been proposed to handle such data is the Direct Iterative REconstruction of Computed Tomography Trajectories (DIRECTT) algorithm. We describe a new approach to the algorithm, which significantly decreases the computational time while achieving a better reconstruction quality than that of other established algorithms.

中文翻译：

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计算机断层扫描轨迹的直接迭代重建 使用 DIRECTT 从有限数量的投影中重建

X 射线计算机断层扫描在材料科学和无损检测中有许多应用。虽然射线照相数据集的标准过滤反投影重建快速而简单，但它通常无法从丢失或不一致的投影中返回准确的结果。已提议用于处理此类数据的替代技术之一是计算机断层扫描轨迹的直接迭代重建 (DIRECTT) 算法。我们描述了一种新的算法方法，它显着减少了计算时间，同时实现了比其他已建立算法更好的重建质量。