Direct Fourier Tomographic Reconstruction Image-To-Image Filter

Détails

Ressource 1Télécharger: BIB_8A09073B373A.P001.pdf (5095.69 [Ko])
Etat: Public
Version: de l'auteur⸱e
ID Serval
serval:BIB_8A09073B373A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Direct Fourier Tomographic Reconstruction Image-To-Image Filter
Périodique
Insight Journal
Auteur⸱e⸱s
Zosso D., Bach C.M., Thiran J.P.
Statut éditorial
Publié
Date de publication
2007
Volume
July-December
Pages
1-13
Langue
anglais
Notes
ITK Open Access / Open Review / Open Source Journal
Résumé
We present an open-source ITK implementation of a directFourier method for tomographic reconstruction, applicableto parallel-beam x-ray images. Direct Fourierreconstruction makes use of the central-slice theorem tobuild a polar 2D Fourier space from the 1D transformedprojections of the scanned object, that is resampled intoa Cartesian grid. Inverse 2D Fourier transform eventuallyyields the reconstructed image. Additionally, we providea complex wrapper to the BSplineInterpolateImageFunctionto overcome ITKâeuro?s current lack for image interpolatorsdealing with complex data types. A sample application ispresented and extensively illustrated on the Shepp-Loganhead phantom. We show that appropriate input zeropaddingand 2D-DFT oversampling rates together with radial cubicb-spline interpolation improve 2D-DFT interpolationquality and are efficient remedies to reducereconstruction artifacts.
Mots-clé
Direct Fourier Method, CT, Tomographic Reconstruction, Image-To-Image Filter, LTS, LTS5
Création de la notice
02/09/2010 15:19
Dernière modification de la notice
20/08/2019 15:48
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