Iterative regularization methods for phase retrieval in the space domain based on TIE equation
文献类型：期刊论文
| 作者 | Tang Wei1,2; Wang Yan-Fei1,2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 60期号:5页码:1851-1860 |
| 关键词 | X-ray Computerized Tomography Ct reconstruCtion Phase Retrieval Tikhonov Regularization |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20170520 |
| 文献子类 | Article |
| 英文摘要 | X-Ray propagation-based computerized tomography (CT) is a non-destructive and useful method to study the size, shape, 3D pore structures and interconnections of pores in shale. However, it remains a challenging task to adequately calculate the location and size of pores. Synchrotron radiation makes it possible to realize reconstruction of the shale structure on multiple scales. Conventionally, computerized tomography relies on the absorption contrast of the sample. This process can be formulated in Radon transform. When we only consider absorption contrast, we may face a phenomenon of the "edge enhancement" effect. It is caused by the effect of phase shift and we need to correct it with phase retrieval. Under the assumption of phase-attenuation duality, the process of phase retrieval can be described in the transport-of-intensity equation (TIE). But this is an ill-posed inverse problem essentially. The existing methods usually focus on how to deal with phase retrieval by filtration in the frequency domain. The method we propose in this paper is a novel approach, trying to solve this problem in the space domain. |
| WOS关键词 | TIKHONOV REGULARIZATION ; CONTRAST ; TOMOGRAPHY ; FORMULAS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000400803000020 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/52912]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Wang Yan-Fei |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang Wei,Wang Yan-Fei. Iterative regularization methods for phase retrieval in the space domain based on TIE equation[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2017,60(5):1851-1860. |
| APA | Tang Wei,&Wang Yan-Fei.(2017).Iterative regularization methods for phase retrieval in the space domain based on TIE equation.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,60(5),1851-1860. |
| MLA | Tang Wei,et al."Iterative regularization methods for phase retrieval in the space domain based on TIE equation".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 60.5(2017):1851-1860. |
入库方式： OAI收割
来源：地质与地球物理研究所
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