Linear information retrieval method in x-ray grating-based phase contrast imaging and its interchangeability with tomographic reconstruction
文献类型：期刊论文
| 作者 | Wu, Z.1; Gao, K.1; Wang, Z. L.2; Shao, Q. G.1; Hu, R. F.1; Wei, C. X.1; Zan, G. B.1; Wali, F.1; Luo, R. H.1; Zhu, P. P.1,3 |
| 刊名 | Journal of applied physics
 |
| 出版日期 | 2017-06-07 |
| 卷号 | 121期号:21页码:8 |
| ISSN号 | 0021-8979 |
| DOI | 10.1063/1.4984208 |
| 通讯作者 | Tian, y. c.(ychtian@ustc.edu.cn) |
| 英文摘要 | In x-ray grating-based phase contrast imaging, information retrieval is necessary for quantitative research, especially for phase tomography. however, numerous and repetitive processes have to be performed for tomographic reconstruction. in this paper, we report a novel information retrieval method, which enables retrieving phase and absorption information by means of a linear combination of two mutually conjugate images. thanks to the distributive law of the multiplication as well as the commutative law and associative law of the addition, the information retrieval can be performed after tomographic reconstruction, thus simplifying the information retrieval procedure dramatically. the theoretical model of this method is established in both parallel beam geometry for talbot interferometer and fan beam geometry for talbot-lau interferometer. numerical experiments are also performed to confirm the feasibility and validity of the proposed method. in addition, we discuss its possibility in cone beam geometry and its advantages compared with other methods. moreover, this method can also be employed in other differential phase contrast imaging methods, such as diffraction enhanced imaging, non-interferometric imaging, and edge illumination. published by aip publishing. |
| WOS关键词 | COMPUTED-TOMOGRAPHY ; INTERFEROMETRY ; ILLUMINATION ; REFRACTION |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000402768900002 |
| 出版者 | AMER INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177382 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Tian, Y. C. |
| 作者单位 | 1.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China 2.Hefei Univ Technol, Sch Elect Sci & Appl Phys, Hefei 230009, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Z.,Gao, K.,Wang, Z. L.,et al. Linear information retrieval method in x-ray grating-based phase contrast imaging and its interchangeability with tomographic reconstruction[J]. Journal of applied physics,2017,121(21):8. |
| APA | Wu, Z..,Gao, K..,Wang, Z. L..,Shao, Q. G..,Hu, R. F..,...&Tian, Y. C..(2017).Linear information retrieval method in x-ray grating-based phase contrast imaging and its interchangeability with tomographic reconstruction.Journal of applied physics,121(21),8. |
| MLA | Wu, Z.,et al."Linear information retrieval method in x-ray grating-based phase contrast imaging and its interchangeability with tomographic reconstruction".Journal of applied physics 121.21(2017):8. |
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来源：高能物理研究所
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