Non-equispaced Fourier Transform Vs. Polynomial-Based Metal Artifact Reduction in Computed Tomography

Bärbel Kratz; Tobias Knopp; Jan Müller; May Oehler; Thorsten M. Buzug

doi:10.1007/978-3-540-78640-5_5

Non-equispaced Fourier Transform Vs. Polynomial-Based Metal Artifact Reduction in Computed Tomography

Bärbel Kratz, Tobias Knopp, Jan Müller, May Oehler, Thorsten M. Buzug

Institut für Medizintechnik

Abstract

We propose a method, which treats metal artifact reduction in CT by sinogram restoration as a problem of scattered data interpolation. Corrupted sinogram entries are discarded and replaced with artificially generated values. The presented interpolation algorithm is based on the 2D non-equispaced fast Fourier transform (NFFT). Results are compared to two common polynomial interpolation schemes.

Originalsprache	Englisch
Titel	Bildverarbeitung für die Medizin 2008
Seitenumfang	4
Herausgeber (Verlag)	Springer Berlin Heidelberg
Erscheinungsdatum	01.12.2008
Seiten	21-25
ISBN (Print)	978-3-540-78639-9
ISBN (elektronisch)	978-3-540-78640-5
DOIs	https://doi.org/10.1007/978-3-540-78640-5_5
Publikationsstatus	Veröffentlicht - 01.12.2008
Veranstaltung	Workshop on Bildverarbeitung fur die Medizin 2008 - Berlin, Deutschland Dauer: 06.04.2008 → 08.04.2008

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title = "Non-equispaced Fourier Transform Vs. Polynomial-Based Metal Artifact Reduction in Computed Tomography",

abstract = "We propose a method, which treats metal artifact reduction in CT by sinogram restoration as a problem of scattered data interpolation. Corrupted sinogram entries are discarded and replaced with artificially generated values. The presented interpolation algorithm is based on the 2D non-equispaced fast Fourier transform (NFFT). Results are compared to two common polynomial interpolation schemes.",

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Kratz, B, Knopp, T, Müller, J, Oehler, M & Buzug, TM 2008, Non-equispaced Fourier Transform Vs. Polynomial-Based Metal Artifact Reduction in Computed Tomography. in Bildverarbeitung für die Medizin 2008 . Informatik aktuell, Springer Berlin Heidelberg, S. 21-25, Workshop on Bildverarbeitung fur die Medizin 2008, Berlin, Berlin, Deutschland, 06.04.08. https://doi.org/10.1007/978-3-540-78640-5_5

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T1 - Non-equispaced Fourier Transform Vs. Polynomial-Based Metal Artifact Reduction in Computed Tomography

AU - Kratz, Bärbel

AU - Knopp, Tobias

AU - Müller, Jan

AU - Oehler, May

AU - Buzug, Thorsten M.

PY - 2008/12/1

Y1 - 2008/12/1

N2 - We propose a method, which treats metal artifact reduction in CT by sinogram restoration as a problem of scattered data interpolation. Corrupted sinogram entries are discarded and replaced with artificially generated values. The presented interpolation algorithm is based on the 2D non-equispaced fast Fourier transform (NFFT). Results are compared to two common polynomial interpolation schemes.

AB - We propose a method, which treats metal artifact reduction in CT by sinogram restoration as a problem of scattered data interpolation. Corrupted sinogram entries are discarded and replaced with artificially generated values. The presented interpolation algorithm is based on the 2D non-equispaced fast Fourier transform (NFFT). Results are compared to two common polynomial interpolation schemes.

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DO - 10.1007/978-3-540-78640-5_5

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ER -

Non-equispaced Fourier Transform Vs. Polynomial-Based Metal Artifact Reduction in Computed Tomography

Abstract

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