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Generalized Titarenko's algorithm for ring artefacts reduction.

E X Miqueles¹, J Rinkel¹, F O'Dowd¹

¹CNPEM/LNLS, Brazilian Synchrotron Light Laboratory, Campinas, São Paulo, Brazil.

Journal of Synchrotron Radiation

|October 25, 2014

Summary

This summary is machine-generated.

This study introduces a fast algorithm for reducing ring artifacts in high-resolution micro-tomography. The method enhances sinogram restoration for clearer imaging in synchrotron radiation applications.

Keywords:

Titarenko generalized rings tomography

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Area of Science:

Medical Imaging
Computational Physics
Materials Science

Background:

Ring artifacts are a common issue in micro-tomography, degrading image quality.
Existing methods for artifact reduction can be computationally intensive or less effective.

Purpose of the Study:

To present a fast and generalized algorithm for ring artifact reduction in high-resolution micro-tomography.
To improve sinogram restoration for enhanced image reconstruction.

Main Methods:

Generalization of Titarenko's sinogram restoration method.
Utilizing the conjugate gradient method for computational efficiency.
Employing higher/lower-order derivatives for sinogram restoration.

Main Results:

The proposed algorithm achieves linear time complexity, making it significantly faster.
Demonstrated effectiveness in restoring both low and high-resolution sinograms.
Numerical results validate the algorithm's performance and advantages over classical approaches.

Conclusions:

The generalized algorithm offers a fast, efficient, and implementable solution for ring artifact reduction.
The flexibility in using different derivative orders provides an advantage over previous methods.
This technique is beneficial for high-resolution micro-tomography using synchrotron radiation.