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Noise analysis of speckle-based x-ray phase-contrast imaging

Noise analysis of speckle-based x-ray phase-contrast imaging
Noise analysis of speckle-based x-ray phase-contrast imaging

Speckle-based x-ray phase-contrast imaging has drawn increasing interest in recent years as a simple, multimodal, cost-efficient, and laboratory-source adaptable method. We investigate its noise properties to help further optimization on the method and further comparison with other phase-contrast methods. An analytical model for assessing noise in a differential phase signal is adapted from studies on the digital image correlation technique in experimental mechanics and is supported by simulations and experiments. The model indicates that the noise of the differential phase signal from speckle-based imaging has a behavior similar to that of the grating-based method.

0146-9592
5490-5493
Zhou, Tunhe
61d8b6b9-abba-4221-a85d-e2f1606972cf
Zdora, Marie-Christine
a2e3b04b-aef4-42f8-9e96-4707149589fb
Zanette, Irene
39ee899c-0aae-4fac-aec6-826f848a8022
Romell, Jenny
ed71f762-d9e7-4b93-b416-9bec6a456ecf
Hertz, Hans M
3b71dc3e-9c7f-42d2-a05b-74559db5c2ca
Burvall, Anna
5ca8cec0-59ca-4e58-95c2-02f180689839
Zhou, Tunhe
61d8b6b9-abba-4221-a85d-e2f1606972cf
Zdora, Marie-Christine
a2e3b04b-aef4-42f8-9e96-4707149589fb
Zanette, Irene
39ee899c-0aae-4fac-aec6-826f848a8022
Romell, Jenny
ed71f762-d9e7-4b93-b416-9bec6a456ecf
Hertz, Hans M
3b71dc3e-9c7f-42d2-a05b-74559db5c2ca
Burvall, Anna
5ca8cec0-59ca-4e58-95c2-02f180689839

Zhou, Tunhe, Zdora, Marie-Christine, Zanette, Irene, Romell, Jenny, Hertz, Hans M and Burvall, Anna (2016) Noise analysis of speckle-based x-ray phase-contrast imaging. Optics Letters, 41 (23), 5490-5493. (doi:10.1364/OL.41.005490).

Record type: Article

Abstract

Speckle-based x-ray phase-contrast imaging has drawn increasing interest in recent years as a simple, multimodal, cost-efficient, and laboratory-source adaptable method. We investigate its noise properties to help further optimization on the method and further comparison with other phase-contrast methods. An analytical model for assessing noise in a differential phase signal is adapted from studies on the digital image correlation technique in experimental mechanics and is supported by simulations and experiments. The model indicates that the noise of the differential phase signal from speckle-based imaging has a behavior similar to that of the grating-based method.

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Published date: 1 December 2016

Identifiers

Local EPrints ID: 438910
URI: http://eprints.soton.ac.uk/id/eprint/438910
ISSN: 0146-9592
PURE UUID: b544a900-c9c2-4933-a630-ee87457529c3

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Date deposited: 26 Mar 2020 17:31
Last modified: 19 May 2020 17:19

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