Explicit Filtering Based Low-Dose Differential Phase Reconstruction Algorithm with the Grating Interferometry

Joint Authors

Zhenchang, Wang
Jiang, Xiaolei
Zhang, Li
Zhang, Ran
Yin, Hongxia

Source

Computational and Mathematical Methods in Medicine

Issue

Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2015-05-18

Country of Publication

Egypt

No. of Pages

7

Main Subjects

Medicine

Abstract EN

X-ray grating interferometry offers a novel framework for the study of weakly absorbing samples.

Three kinds of information, that is, the attenuation, differential phase contrast (DPC), and dark-field images, can be obtained after a single scanning, providing additional and complementary information to the conventional attenuation image.

Phase shifts of X-rays are measured by the DPC method; hence, DPC-CT reconstructs refraction indexes rather than attenuation coefficients.

In this work, we propose an explicit filtering based low-dose differential phase reconstruction algorithm, which enables reconstruction from reduced scanning without artifacts.

The algorithm adopts a differential algebraic reconstruction technique (DART) with the explicit filtering based sparse regularization rather than the commonly used total variation (TV) method.

Both the numerical simulation and the biological sample experiment demonstrate the feasibility of the proposed algorithm.

American Psychological Association (APA)

Jiang, Xiaolei& Zhang, Li& Zhang, Ran& Yin, Hongxia& Zhenchang, Wang. 2015. Explicit Filtering Based Low-Dose Differential Phase Reconstruction Algorithm with the Grating Interferometry. Computational and Mathematical Methods in Medicine،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1057956

Modern Language Association (MLA)

Jiang, Xiaolei…[et al.]. Explicit Filtering Based Low-Dose Differential Phase Reconstruction Algorithm with the Grating Interferometry. Computational and Mathematical Methods in Medicine No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1057956

American Medical Association (AMA)

Jiang, Xiaolei& Zhang, Li& Zhang, Ran& Yin, Hongxia& Zhenchang, Wang. Explicit Filtering Based Low-Dose Differential Phase Reconstruction Algorithm with the Grating Interferometry. Computational and Mathematical Methods in Medicine. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1057956

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1057956