| 三维锥束重建中滤波器的设计 |
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| 引用本文： | 高洁,杨波,孔斌.三维锥束重建中滤波器的设计[J].计算机系统应用,2011,20(3):116-120. |
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| 作者姓名： | 高洁 杨波 孔斌 |
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| 作者单位： | 1. 中国科学院合肥智能机械研究所,仿生感知与控制研究中心,安徽,合肥,230027;中国科学技术大学,自动化系,安徽,合肥,230031;安徽省仿生感知与先进机器人技术重点实验室,安徽,合肥,230031
2. 中国科学院合肥智能机械研究所,仿生感知与控制研究中心,安徽,合肥,230027;安徽省仿生感知与先进机器人技术重点实验室,安徽,合肥,230031 |
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| 基金项目： | 国家自然科学基金(10635070) |
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| 摘 要： | 设计了几种用于CT三维锥束图像重建的滤波器,并将其对图像质量的影响进行了分析。CT是一种先进的成像技术,现已被应用于多个领域。CT图像重建算法多采用滤波反投影法,滤波是此方法的核心部分。本文介绍了三维锥束近似重建的基本原理,分析并设计了几种用于CT锥束图像重建的滤波器,并且通过投影数据的图像重建结果分析了不同滤波函数对断层图像重建质量的影响。实验结果证明：所设计的几种滤波器能较好的满足实际图像重建的要求。
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| 关 键 词： | CT 图像重建 滤波反投影 滤波函数 |
| 收稿时间： | 2010/7/11 0:00:00 |
| 修稿时间： | 2010/8/20 0:00:00 |
Design of Filter in 3D Cone Beam Reconstruction |
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| GAO Jie,YANG Bo and KONG Bin.Design of Filter in 3D Cone Beam Reconstruction[J].Computer Systems& Applications,2011,20(3):116-120. |
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| Authors: | GAO Jie YANG Bo and KONG Bin |
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| Affiliation: | Center for Biomimetic Sensing and Control Research, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China; Department of Automation, University of Science and Technology of China, Hefei 230027, China; The Key Laboratory of Bi;Center for Biomimetic Sensing and Control Research, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China; Department of Automation, University of Science and Technology of China, Hefei 230027, China; The Key Laboratory of Bi;Center for Biomimetic Sensing and Control Research, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China; The Key Laboratory of Biomimetic Sensing and Advanced Robot Technology, Hefei 230031, China |
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| Abstract: | This article analysises designes for several filters using in the approximate three-dimensional cone beam reconstruction principle,and analysises the effect of CT's image quality.CT is an advanced imaging technology,and have been used in many fields.The current CT image reconstruction alrorithms mostly use filtered back projection method.Filtering is the core of this method.This article analysises and designes for several filters using in the approximate three-dimensional cone beam reconstruction principle.... |
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| Keywords: | CT image reconstruction filter back projection filter function |
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