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X-CT投影数据硬化校正技术

Beam Hardening Correction Technique for X-CT Projection
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摘要 从理论上探讨了广泛应用于各领域的CT系统中单能X光和多能X光与物质之间的作用机制,阐述了X射线能谱硬化的产生原因,而能谱硬化是造成图像伪影的重要因素,基于此结合现状分析讨论了消除射线硬化的几种关键技术。 The paper discusses the operation mechanism between X-ray and material in the monoehromatie ease and polyehromatie ease in CT,and gives the theory to analyse why X-ray beam hardening arises. Beam hardening is the main reason for reconstruction image artifact and distortion. To improve the image quality, this paper introduces several effective methods to eliminate the artifact caused by beam hardening.
作者 马晨欣 江桦 闫镔
机构地区 信息工程大学信息工程学院
出处 《信息工程大学学报》 2009年第4期502-505,共4页 Journal of Information Engineering University
关键词 CT重建 光谱硬化 杯状伪影 硬化校正 CT reconstruction beam hardening cupping artifact beam hardening correction
分类号 TP391.41 [自动化与计算机技术—计算机应用技术] R814.42 [医药卫生—影像医学与核医学]
  • 相关文献

参考文献8

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二级参考文献10

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共引文献123

信息工程大学学报
2009年 第4期

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