| CT系统空间分辨率测试方法研究进展 |
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| 引用本文： | 郭智敏,倪培君.CT系统空间分辨率测试方法研究进展[J].兵器材料科学与工程,2010,32(2):113-117. |
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| 作者姓名： | 郭智敏 倪培君 |
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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 |
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| 摘 要： | 分别从直接测试方法和间接测试方法两方面分析CT系统空间分辨率测试方法的研究进展,综述了两种方法的优缺点和国内外研究现状,介绍一种测试CT系统空间分辨率的新方法,并对该领域的研究和发展趋势作了简要的阐述和展望。最后,介绍一种测试空间分辨率的新方法:数字化标准试件和自动分析软件技术。
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| 关 键 词： | 调制传递函数 点扩散函数 线扩散甬数 边界响应函数 数字化标准试件 |
Research on assessment techniques for CT system's spatial resolution |
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| GUO Zhimin,NI Peijun.Research on assessment techniques for CT system''s spatial resolution[J].Ordnance Material Science and Engineering,2010,32(2):113-117. |
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| Authors: | GUO Zhimin NI Peijun |
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| Affiliation: | Ningbo Branch of China Academy of Ordnance Science;Ningbo 315103;China |
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| Abstract: | This paper represents the principle and recent approach of the subjective method and objective method,which were dedicated for the assessment of spatial resolution in CT system.The comparison between different methods was made and a new technique was introduced.Some problems in these methods were discussed and the research directions on this area were also pointed out. |
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| Keywords: | modulation transfer function point spread function line spread function edge response function digital test objects |
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