Journal article
Robust Beam Hardening Artifacts Reduction for Computed Tomography Using Spectrum Modeling
Abstract
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 tomography (CT) imaging. The nonlinear attenuation process of the X-ray projection is modeled by reprojecting a template image with the estimated polychromatic spectrum. By adding the scaled difference of the monochromatic reprojection data and the polychromatic reprojection …
Authors
Zhao W; Li D; Niu K; Qin W; Peng H; Niu T
Journal
IEEE Transactions on Computational Imaging, Vol. 5, No. 2, pp. 333–342
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
DOI
10.1109/tci.2018.2884479
ISSN
2573-0436