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中文摘要：
折射衬度是衍射增强成像(diffraction enhanced imaging,DEI)中的一种重要衬度,在弱吸收物质的成像中,折射衬度远超过吸收衬度。折射衬度应用的关键是提取出样品的折射信息,折射信息由相应的折射图像表示。根据生物样品和材料样品的特点,研究和比较了两种折射信息提取方法。利用样品的折射图像,对聚苯乙烯样品进行了简单的定量分析,比较了正常肝组织和肝血管瘤组织。实验结果表明,折射衬度清楚地描述了肝组织的微细结构和血管瘤损伤,精确地显示了无法在传统X射线成像技术中获得的聚苯乙烯样品的清晰结构。
英文摘要：
As an important contrast in diffraction enhanced imaging(DEI),the refraction contrast vastly exceeds the absorption contrast for weakly absorbing objects imaging.In order to effectively utilize the refraction contrast,the key procedure is first to obtain the refraction information expressed as the refraction image.In this paper,two refraction information extraction methods are investigated and compared according to the characteristics of the biological and material samples.The quantitative analysis of polys...
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同项目期刊论文
A new method of detecting interferogram in differential phase-contrast imaging system based on speci
Noninvasive visualization of microvessels using diffraction enhanced imaging, European Journal of Ra
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