| CT图像重建预处理滤波器设计 |
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| 引用本文： | 文斌,吴胜利,潘瑞谊.CT图像重建预处理滤波器设计[J].CT理论与应用研究,2008,17(3):57-64. |
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| 作者姓名： | 文斌 吴胜利 潘瑞谊 |
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| 作者单位： | 西安交通大学,电子物理与器件教育部重点实验室,西安,710049 |
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| 基金项目： | 陕西省科技攻关计划，西安交通大学校科研和教改项目 |
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| 摘 要： | 本文分析并设计了用于CT图像重建的几种预处理滤波器。通过分析不同滤波函数对断层图像重建质量的影响，从几种经典的滤波函数出发，进行改进并与窗函数结合得到了可用于CT图像重建的几种滤波器。有关投影数据的图像重建结果表明，所设计的几种滤波器较好地满足了实际图像重建的要求。
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| 关 键 词： | 图像重建 预处理滤波器 窗函数 |
Design of Preprocessing Filters for CT Reconstruction |
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| WEN Bin,WU Sheng-li,PAN Rui-yi.Design of Preprocessing Filters for CT Reconstruction[J].Computerized Tomography Theory and Applications,2008,17(3):57-64. |
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| Authors: | WEN Bin WU Sheng-li PAN Rui-yi |
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| Institution: | WEN Bin, WU Sheng-li, PAN Rui-yi( Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi＇an Jiaotong University, Xi＇an 710049, China ) |
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| Abstract: | Several preprocessing filters for CT reconstruction were analyzed and designed. By comparing and analyzing the quality of images reconstructed with different classical filters, several preprocessing filters are designed through improving filter function and combining with window function. The reconstruction experiments based on actual projection data indicate that these filters are effective in improving image qualities and can be used in actual CT reconstruction. |
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| Keywords: | image reconstruction pre-processing filter window function |
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