Estimating the spectrum in computed tomography via Kullback–Leibler divergence constrained optimization

PURPOSE: We study the problem of spectrum estimation from transmission data of a known phantom. The goal is to reconstruct an x‐ray spectrum that can accurately model the x‐ray transmission curves and reflects a realistic shape of the typical energy spectra of the CT system. METHODS: Spectrum estima...

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Bibliographic Details
Published in:Med Phys
Main Authors: Ha, Wooseok, Sidky, Emil Y., Barber, Rina Foygel, Schmidt, Taly Gilat, Pan, Xiaochuan
Format: Artigo
Language:Inglês
Published: John Wiley and Sons Inc. 2018
Subjects:
DIAGNOSTIC IMAGING (IONIZING AND NON‐IONIZING)
Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC6461446/
https://ncbi.nlm.nih.gov/pubmed/30370544
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1002/mp.13257
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