A ring artifact suppression algorithm based on a priori information

Sofya Titarenko; Valeriy Titarenko; Albrecht Kyrieleis; Philip J. Withers

doi:10.1063/1.3211956

A ring artifact suppression algorithm based on a priori information

Sofya Titarenko, Valeriy Titarenko, Albrecht Kyrieleis, Philip J. Withers

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

In this letter, ring artifacts in two-dimensional (2D) tomographic slices are considered. For a parallel beam geometry we propose an interactive algorithm, which removes the artifacts while preserving fine image details. The algorithm comprises two stages and is based on a priori information about the true attenuation coefficient in some areas of a 2D slice. Even in the absence of any a priori information the initial stage of the algorithm can already provide good ring artifact suppression.

Original language	English
Article number	071113
Journal	Applied Physics Letters
Volume	95
Issue number	7
Early online date	21 Aug 2009
DOIs	https://doi.org/10.1063/1.3211956
Publication status	Published - 21 Aug 2009
Externally published	Yes

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AU - Kyrieleis, Albrecht

AU - Withers, Philip J.

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KW - Parallel algorithms

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A ring artifact suppression algorithm based on a priori information

Abstract

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