IMAGE-RECONSTRUCTION FROM CONE-BEAM PROJECTIONS - NECESSARY AND SUFFICIENT CONDITIONS AND RECONSTRUCTION METHODS
IMAGE-RECONSTRUCTION FROM CONE-BEAM PROJECTIONS - NECESSARY AND SUFFICIENT CONDITIONS AND RECONSTRUCTION METHODS
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DOI：
10.1109/tmi.1985.4307689
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发表时间：
1985-01-01
影响因子：
10.6
通讯作者：
SMITH, BD
中科院分区：
文献类型：
--
作者：
SMITH, BD
以前未知的充分条件，一个必要条件，并从锥束投影图像重建的重建方法。所发展的充分条件包含在下面的陈述中。语句5：如果与物体相交的每个平面中至少存在一个锥束源点，则可以重建物体。导出满足语句5的任意源点配置的重建方法。通过对源点的配置要求附加条件，开发了一种更有效的重建方法。结果表明，当源点的配置是一个圆，语句5不满足。尽管如此，还是提出了几点建议，以便从一个震源点圈进行重建。
Previously unknown sufficient conditions, a necessary condition, and reconstruction methods for image reconstruction from cone-beam projections are developed. A sufficient condition developed is contained in the following statement. Statement 5: If one every plane that intersects the object, there exists at least one cone-beam source point, then the object can be reconstructed. Reconstruction methods for an arbitrary configuration of source points that satisfy Statement 5 are derived. By requiring additional conditions on the configuration of source points, a more efficient reconstruction method is developed. It is shown that when the configuration of source points is a circle, Statement 5 is not satisfied. In spite of this, several suggestions are made for reconstruction from a circle of source points.