Robust beam hardening artifacts reduction for computed tomography using spectrum modeling

W Zhao, D Li, K Niu, W Qin, H Peng… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
The aim of this paper is to develop a fast and accurate beam hardening correction method
by modeling physical interactions between X-ray photons and materials for computed …

Reduction of beam hardening artifacts on real C-arm CT data using polychromatic statistical image reconstruction

RNK Bismark, R Frysch, S Abdurahman… - … für Medizinische Physik, 2020 - Elsevier
Purpose This work aims at the compensation of beam hardening artifacts by the means of an
extended three-dimensional polychromatic statistical reconstruction to be applied for flat …

Multi-material blind beam hardening correction in near real-time based on non-linearity adjustment of projections

A Alsaffar, K Sun, S Simon - Journal of Real-Time Image Processing, 2023 - Springer
Beam hardening (BH) is one of the major artifacts that severely reduces the quality of
computed tomography (CT) imaging. This BH artifact arises due to the polychromatic nature …

Blind separation model of multi-voltage projections for the hardening artifact correction in computed tomography

J Wei, P Chen, Y Han, Y Zhao - Biomedical Signal Processing and Control, 2021 - Elsevier
The hardening artifacts caused by polychromatic X-ray beams in computed tomography (CT)
reconstructed images increase the difficulty of quantitative analysis. A method based on the …

Evaluation of spectrum mismatching using spectrum binning for statistical polychromatic reconstruction in CT

Q Yang, M Wu, A Maier, J Hornegger… - … vom 16. bis 18. März 2014 …, 2014 - Springer
In CT, the nonlinear attenuation characteristics of polychromatic X-rays cause beam
hardening artifacts in the reconstructed images. Statistical algorithms can effectively correct …

Multi-materials beam hardening artifacts correction for computed tomography (CT) based on X-ray spectrum estimation

W Zhao, D Li, K Niu, W Qin, H Peng, T Niu - arXiv preprint arXiv …, 2018 - arxiv.org
Due to the energy-dependent nature of the attenuation coefficient and the polychromaticity
of the X-ray source, beam hardening effect occurs when X-ray photons penetrate through an …

Multi-Material Blind Beam Hardening Correction Based on Non-Linearity Adjustment of Projections

A Alsaffar, K Sun, S Simon - arXiv preprint arXiv:2203.04587, 2022 - arxiv.org
Beam hardening (BH) is one of the major artifacts that severely reduces the quality of
Computed Tomography (CT) imaging. In a polychromatic X-ray beam, since low-energy …

On the application of the polychromatic statistical reconstruction technique to C-arm CT data

RNK Bismark - 2021 - repo.bibliothek.uni-halle.de
Computer tomography (CT) is an essential means of diagnosis and aftercare in the clinical
routine of hospitals. Although it has been successfully used and improved for decades, the …

[PDF][PDF] Spectrum Binning Approach for Multi-Material Beam Hardening Correction (MMBHC) in CT

Q Yang, M Wu, N Maass, AK Maier, J Hornegger… - informatik.uni-erlangen.de
In CT, the nonlinear attenuation characteristics of polychromatic X-rays cause beam
hardening artifacts in the reconstructed images. When datasets contain multiple materials in …