| 预硬化法校正工业CT射束硬化伪像规律的研究 |
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| 引用本文： | 乔日东,郭智敏,徐向群,唐盛明,李红伟.预硬化法校正工业CT射束硬化伪像规律的研究[J].兵器材料科学与工程,2010,32(2):71-73. |
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| 作者姓名： | 乔日东 郭智敏 徐向群 唐盛明 李红伟 |
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| 作者单位： | 中国兵器科学研究院,宁波分院,浙江,宁波,315103;中国兵器科学研究院,宁波分院,浙江,宁波,315103;中国兵器科学研究院,宁波分院,浙江,宁波,315103;中国兵器科学研究院,宁波分院,浙江,宁波,315103;中国兵器科学研究院,宁波分院,浙江,宁波,315103 |
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| 摘 要： | X射线工业CT系统都会产生不同程度的射束硬化伪像。研究一种有别于软件校正模型的更为简单实用的射束硬化伪像校正方法。该方法对X射线进行一定程度的预硬化,通过实验获得预硬化材料种类及射束硬化伪像的校正规律。结果表明,铜、铅为理想的预硬化材料,预硬化材料厚度与射束硬化伪像校正效果具有很好的对应关系。
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| 关 键 词： | 工业CT 射束硬化 校正 伪像 预硬化 射束硬化伪像指数 |
Study on correction rule of beam hardening artifacts in industrial CT through prehardening method |
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| QIAO Ridong,GUO Zhimin,XU Xiangqun,TANG Shengming,LI Hongwei.Study on correction rule of beam hardening artifacts in industrial CT through prehardening method[J].Ordnance Material Science and Engineering,2010,32(2):71-73. |
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| Authors: | QIAO Ridong GUO Zhimin XU Xiangqun TANG Shengming LI Hongwei |
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| Affiliation: | Ningbo Branch of China Academy of Ordnance Science;Ningbo 315103;China |
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| Abstract: | The X-ray industrial CT system will produce undesirable beam hardening artifacts.This paper introduces a simple and practical method to correct the beam hardening artifacts,which is different from the method of software correction model.The method made the X-ray beam harden at first,and then the kinds of prehardening materials and correction rule of beam hardening artifacts were obtained through experiment.The result indicates that copper and lead are the ideal material for prehardening method,and the corre... |
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| Keywords: | industrial computed tomography beam hardening correction artifact prehardening BH index |
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