Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths

Abstract We present an approach towards four dimensional (4d) movies of materials, showing dynamic processes within the entire 3d structure. The method is based on tomographic reconstruction on dynamically curved paths using a motion model estimated by optical flow techniques, considerably reducing...

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Auteurs principaux:	A. Ruhlandt, M. Töpperwien, M. Krenkel, R. Mokso, T. Salditt
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2017
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/caff01b4f45d4f6fb4650efe6d5cc481
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id	oai:doaj.org-article:caff01b4f45d4f6fb4650efe6d5cc481
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spelling	oai:doaj.org-article:caff01b4f45d4f6fb4650efe6d5cc4812021-12-02T15:05:36ZFour dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths10.1038/s41598-017-06333-62045-2322https://doaj.org/article/caff01b4f45d4f6fb4650efe6d5cc4812017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06333-6https://doaj.org/toc/2045-2322Abstract We present an approach towards four dimensional (4d) movies of materials, showing dynamic processes within the entire 3d structure. The method is based on tomographic reconstruction on dynamically curved paths using a motion model estimated by optical flow techniques, considerably reducing the typical motion artefacts of dynamic tomography. At the same time we exploit x-ray phase contrast based on free propagation to enhance the signal from micron scale structure recorded with illumination times down to a millisecond (ms). The concept is demonstrated by observing the burning process of a match stick in 4d, using high speed synchrotron phase contrast x-ray tomography recordings. The resulting movies reveal the structural changes of the wood cells during the combustion.A. RuhlandtM. TöpperwienM. KrenkelR. MoksoT. SaldittNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q A. Ruhlandt M. Töpperwien M. Krenkel R. Mokso T. Salditt Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths
description	Abstract We present an approach towards four dimensional (4d) movies of materials, showing dynamic processes within the entire 3d structure. The method is based on tomographic reconstruction on dynamically curved paths using a motion model estimated by optical flow techniques, considerably reducing the typical motion artefacts of dynamic tomography. At the same time we exploit x-ray phase contrast based on free propagation to enhance the signal from micron scale structure recorded with illumination times down to a millisecond (ms). The concept is demonstrated by observing the burning process of a match stick in 4d, using high speed synchrotron phase contrast x-ray tomography recordings. The resulting movies reveal the structural changes of the wood cells during the combustion.
format	article
author	A. Ruhlandt M. Töpperwien M. Krenkel R. Mokso T. Salditt
author_facet	A. Ruhlandt M. Töpperwien M. Krenkel R. Mokso T. Salditt
author_sort	A. Ruhlandt
title	Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths
title_short	Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths
title_full	Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths
title_fullStr	Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths
title_full_unstemmed	Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths
title_sort	four dimensional material movies: high speed phase-contrast tomography by backprojection along dynamically curved paths
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/caff01b4f45d4f6fb4650efe6d5cc481
work_keys_str_mv	AT aruhlandt fourdimensionalmaterialmovieshighspeedphasecontrasttomographybybackprojectionalongdynamicallycurvedpaths AT mtopperwien fourdimensionalmaterialmovieshighspeedphasecontrasttomographybybackprojectionalongdynamicallycurvedpaths AT mkrenkel fourdimensionalmaterialmovieshighspeedphasecontrasttomographybybackprojectionalongdynamicallycurvedpaths AT rmokso fourdimensionalmaterialmovieshighspeedphasecontrasttomographybybackprojectionalongdynamicallycurvedpaths AT tsalditt fourdimensionalmaterialmovieshighspeedphasecontrasttomographybybackprojectionalongdynamicallycurvedpaths
_version_	1718388793560530944

Four dimensional material movies: High speed phase-contrast tomography by backprojection along dynamically curved paths

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