Cargando…

Diffraction Enhanced Imaging Analysis with Pseudo-Voigt Fit Function

Diffraction enhanced imaging (DEI) is an advanced digital radiographic imaging technique employing the refraction of X-rays to contrast internal interfaces. This study aims to qualitatively and quantitatively evaluate images acquired using this technique and to assess how different fitting functions...

Descripción completa

Detalles Bibliográficos
Autores principales: Mani, Deepak, Kupsch, Andreas, Müller, Bernd R., Bruno, Giovanni
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9330705/
https://www.ncbi.nlm.nih.gov/pubmed/35893084
http://dx.doi.org/10.3390/jimaging8080206
_version_ 1784758227267747840
author Mani, Deepak
Kupsch, Andreas
Müller, Bernd R.
Bruno, Giovanni
author_facet Mani, Deepak
Kupsch, Andreas
Müller, Bernd R.
Bruno, Giovanni
author_sort Mani, Deepak
collection PubMed
description Diffraction enhanced imaging (DEI) is an advanced digital radiographic imaging technique employing the refraction of X-rays to contrast internal interfaces. This study aims to qualitatively and quantitatively evaluate images acquired using this technique and to assess how different fitting functions to the typical rocking curves (RCs) influence the quality of the images. RCs are obtained for every image pixel. This allows the separate determination of the absorption and the refraction properties of the material in a position-sensitive manner. Comparison of various types of fitting functions reveals that the Pseudo-Voigt (PsdV) function is best suited to fit typical RCs. A robust algorithm was developed in the Python programming language, which reliably extracts the physically meaningful information from each pixel of the image. We demonstrate the potential of the algorithm with two specimens: a silicone gel specimen that has well-defined interfaces, and an additively manufactured polycarbonate specimen.
format Online
Article
Text
id pubmed-9330705
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-93307052022-07-29 Diffraction Enhanced Imaging Analysis with Pseudo-Voigt Fit Function Mani, Deepak Kupsch, Andreas Müller, Bernd R. Bruno, Giovanni J Imaging Article Diffraction enhanced imaging (DEI) is an advanced digital radiographic imaging technique employing the refraction of X-rays to contrast internal interfaces. This study aims to qualitatively and quantitatively evaluate images acquired using this technique and to assess how different fitting functions to the typical rocking curves (RCs) influence the quality of the images. RCs are obtained for every image pixel. This allows the separate determination of the absorption and the refraction properties of the material in a position-sensitive manner. Comparison of various types of fitting functions reveals that the Pseudo-Voigt (PsdV) function is best suited to fit typical RCs. A robust algorithm was developed in the Python programming language, which reliably extracts the physically meaningful information from each pixel of the image. We demonstrate the potential of the algorithm with two specimens: a silicone gel specimen that has well-defined interfaces, and an additively manufactured polycarbonate specimen. MDPI 2022-07-23 /pmc/articles/PMC9330705/ /pubmed/35893084 http://dx.doi.org/10.3390/jimaging8080206 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mani, Deepak
Kupsch, Andreas
Müller, Bernd R.
Bruno, Giovanni
Diffraction Enhanced Imaging Analysis with Pseudo-Voigt Fit Function
title Diffraction Enhanced Imaging Analysis with Pseudo-Voigt Fit Function
title_full Diffraction Enhanced Imaging Analysis with Pseudo-Voigt Fit Function
title_fullStr Diffraction Enhanced Imaging Analysis with Pseudo-Voigt Fit Function
title_full_unstemmed Diffraction Enhanced Imaging Analysis with Pseudo-Voigt Fit Function
title_short Diffraction Enhanced Imaging Analysis with Pseudo-Voigt Fit Function
title_sort diffraction enhanced imaging analysis with pseudo-voigt fit function
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9330705/
https://www.ncbi.nlm.nih.gov/pubmed/35893084
http://dx.doi.org/10.3390/jimaging8080206
work_keys_str_mv AT manideepak diffractionenhancedimaginganalysiswithpseudovoigtfitfunction
AT kupschandreas diffractionenhancedimaginganalysiswithpseudovoigtfitfunction
AT mullerberndr diffractionenhancedimaginganalysiswithpseudovoigtfitfunction
AT brunogiovanni diffractionenhancedimaginganalysiswithpseudovoigtfitfunction