Open AccessAn extrapolation method for projection data fltration in pulsed X-ray tomography
Author(s) -
I. P. Yarovenko,
И. В. Прохоров
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2099/1/012050
Subject(s) - extrapolation , imaging phantom , projection (relational algebra) , attenuation , inverse problem , tomography , attenuation coefficient , algorithm , scattering , iterative reconstruction , inverse scattering problem , computer science , mathematics , physics , mathematical analysis , optics , computer vision
This paper deals with an inverse problem that consists of an attenuation coefficient identification for the non-stationary radiation transfer equation. To solve the problem, we propose a method that uses several pulses of radiation to extrapolate ideal projection data corresponding to a non-scattering medium. Numerical experiments on the Shepp-Logan phantom show that the method proposed improves the reconstruction quality.