ISSN 1004-4140
CN 11-3017/P
贠明凯, 刘力. 图像重建算法FBP与OSEM在工业CT应用中的对比研究[J]. CT理论与应用研究, 2006, 15(1): 56-60.
引用本文: 贠明凯, 刘力. 图像重建算法FBP与OSEM在工业CT应用中的对比研究[J]. CT理论与应用研究, 2006, 15(1): 56-60.
YUAN Ming-kai, LIU Li. Comparative Analysis of FBP and OSEM Reconstruction Methods in Industrial CT[J]. CT Theory and Applications, 2006, 15(1): 56-60.
Citation: YUAN Ming-kai, LIU Li. Comparative Analysis of FBP and OSEM Reconstruction Methods in Industrial CT[J]. CT Theory and Applications, 2006, 15(1): 56-60.

图像重建算法FBP与OSEM在工业CT应用中的对比研究

Comparative Analysis of FBP and OSEM Reconstruction Methods in Industrial CT

  • 摘要: 滤波反投影法(FBP)与有序子集最大期望值法(OSEM)是图像重建中最为常用的两种方法,本文研究了这两种重建方法在工业CT中的应用,就不同的探测器数目、不同的旋转投影角度取样数、不同的噪声水平,对两种方法的重建效果进行对比与分析,结果表明在某些条件下迭代法OSEM重建图像质量明显好于解析法FBP。

     

    Abstract: FBP and OSEM are the most frequently used methods in image reconstruction.In this paper,we report the application of these two methods in the reconstruction of industrial CT,compare and analysis the reconstructed results of the two methods in different detector bin numbers,different samplings of angles,and different noise levels.The conclusion is that the reconstruction results of iterative OSEM are better than those of analytic FBP in certain conditions.

     

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