| 硬x射线同轴相衬成像相位恢复的模拟 |
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| 引用本文： | 甄祺,潘晋孝.硬x射线同轴相衬成像相位恢复的模拟[J].微计算机信息,2007,23(26):113-114. |
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| 作者姓名： | 甄祺 潘晋孝 |
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| 作者单位： | 中北大学信息与通信工程学院,太原,030051 |
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| 摘 要： | 分析了硬x射线同轴相衬成像过程,在菲涅耳衍射的基础上,提出了基于强度传播方程（Transport of Intensity equation）的相位恢复算法,并利用数值法模拟研究了相衬成像和相位恢复过程,从而验证了这一相位恢复算法。
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| 关 键 词： | 相位恢复 相位衬度 强度传播方程(TIE) 硬x射线 |
| 文章编号： | 1008-0570（2007）09-2-0113-02 |
| 修稿时间： | 2007-07-232007-08-25 |
Phase retrieval for hard x-ray in-line phase contrast imaging |
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| ZHEN QI,PAN JINXIAO.Phase retrieval for hard x-ray in-line phase contrast imaging[J].Control & Automation,2007,23(26):113-114. |
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| Authors: | ZHEN QI PAN JINXIAO |
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| Affiliation: | ZHEN QI PAN JINXIAO |
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| Abstract: | In this paper, we analyze hard x-ray in-line phase contrast imaging using Fresnel diffraction of x-ray. Then we propose a linear phase retrieval method based on Transport of Intensity equation (TIE). According to computer simulation for the process of phase contrast imaging and Phase retrieval, this method is tested on simulated images and is demonstrated to be efficient for phase retrieval in the "near-Fresnel"region. |
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| Keywords: | phase retrieval phase contrast Transport of Intensity equation hard x-ray |
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