| 扇形束重建图像的一簇新算法(英) |
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| 引用本文： | 潘晓川.扇形束重建图像的一簇新算法(英)[J].CT理论与应用研究,1999(2). |
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| 作者姓名： | 潘晓川 |
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| 作者单位： | 美国芝加哥大学放射学系 |
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| 摘 要： | 本文提出重建扇形束（fan－beam）图像的一簇新的混合算法。这簇新方法使得重建扇形束图像既不产生偏差，又可改进扇形束图像中的噪声性质。同时，通过理论分析和计算机数字模拟，证明此新方法不仅运算速度快欲常用方法，并且具有比常用的扇形束渺滤波反投影的算法更为优越的数学和统计特性。
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| 关 键 词： | 计算机层析成像 光子CT 扇形束 重建图像 |
A New Family of Algorithms for Fan-beamImage Reconstruction |
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| Xiaochuan Pan.A New Family of Algorithms for Fan-beamImage Reconstruction[J].Computerized Tomography Theory and Applications,1999(2). |
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| Authors: | Xiaochuan Pan |
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| Abstract: | In this paper we report our recent work on fan-beam image reconstruction, inwhich we investigated noise properties in fan-beam image, proposed a new family of hybridalgorithms for reconstruction of fan-beam images with bias-free variance reductions, anddemonstrated theoretically and verified numerically that these hybrid algorithms arecomputationally more efficient and numerically more stable than the conventional fan-beamfiltered back-projection algorithm. |
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| Keywords: | CT SPECT Fan-beam Image reconstruction |
| 本文献已被 CNKI 等数据库收录！ |
