Image alignment for tomography reconstruction from synchrotron X-ray microscopic images.

A synchrotron X-ray microscope is a powerful imaging apparatus for taking high-resolution and high-contrast X-ray images of nanoscale objects. A sufficient number of X-ray projection images from different angles is required for constructing 3D volume images of an object. Because a synchrotron light...

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Autores principales:	Chang-Chieh Cheng, Chia-Chi Chien, Hsiang-Hsin Chen, Yeukuang Hwu, Yu-Tai Ching
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/db444ae525d5493590c7df56e9ed15ef
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spelling	oai:doaj.org-article:db444ae525d5493590c7df56e9ed15ef2021-11-18T08:38:13ZImage alignment for tomography reconstruction from synchrotron X-ray microscopic images.1932-620310.1371/journal.pone.0084675https://doaj.org/article/db444ae525d5493590c7df56e9ed15ef2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24416264/?tool=EBIhttps://doaj.org/toc/1932-6203A synchrotron X-ray microscope is a powerful imaging apparatus for taking high-resolution and high-contrast X-ray images of nanoscale objects. A sufficient number of X-ray projection images from different angles is required for constructing 3D volume images of an object. Because a synchrotron light source is immobile, a rotational object holder is required for tomography. At a resolution of 10 nm per pixel, the vibration of the holder caused by rotating the object cannot be disregarded if tomographic images are to be reconstructed accurately. This paper presents a computer method to compensate for the vibration of the rotational holder by aligning neighboring X-ray images. This alignment process involves two steps. The first step is to match the "projected feature points" in the sequence of images. The matched projected feature points in the x-θ plane should form a set of sine-shaped loci. The second step is to fit the loci to a set of sine waves to compute the parameters required for alignment. The experimental results show that the proposed method outperforms two previously proposed methods, Xradia and SPIDER. The developed software system can be downloaded from the URL, http://www.cs.nctu.edu.tw/~chengchc/SCTA or http://goo.gl/s4AMx.Chang-Chieh ChengChia-Chi ChienHsiang-Hsin ChenYeukuang HwuYu-Tai ChingPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e84675 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chang-Chieh Cheng Chia-Chi Chien Hsiang-Hsin Chen Yeukuang Hwu Yu-Tai Ching Image alignment for tomography reconstruction from synchrotron X-ray microscopic images.
description	A synchrotron X-ray microscope is a powerful imaging apparatus for taking high-resolution and high-contrast X-ray images of nanoscale objects. A sufficient number of X-ray projection images from different angles is required for constructing 3D volume images of an object. Because a synchrotron light source is immobile, a rotational object holder is required for tomography. At a resolution of 10 nm per pixel, the vibration of the holder caused by rotating the object cannot be disregarded if tomographic images are to be reconstructed accurately. This paper presents a computer method to compensate for the vibration of the rotational holder by aligning neighboring X-ray images. This alignment process involves two steps. The first step is to match the "projected feature points" in the sequence of images. The matched projected feature points in the x-θ plane should form a set of sine-shaped loci. The second step is to fit the loci to a set of sine waves to compute the parameters required for alignment. The experimental results show that the proposed method outperforms two previously proposed methods, Xradia and SPIDER. The developed software system can be downloaded from the URL, http://www.cs.nctu.edu.tw/~chengchc/SCTA or http://goo.gl/s4AMx.
format	article
author	Chang-Chieh Cheng Chia-Chi Chien Hsiang-Hsin Chen Yeukuang Hwu Yu-Tai Ching
author_facet	Chang-Chieh Cheng Chia-Chi Chien Hsiang-Hsin Chen Yeukuang Hwu Yu-Tai Ching
author_sort	Chang-Chieh Cheng
title	Image alignment for tomography reconstruction from synchrotron X-ray microscopic images.
title_short	Image alignment for tomography reconstruction from synchrotron X-ray microscopic images.
title_full	Image alignment for tomography reconstruction from synchrotron X-ray microscopic images.
title_fullStr	Image alignment for tomography reconstruction from synchrotron X-ray microscopic images.
title_full_unstemmed	Image alignment for tomography reconstruction from synchrotron X-ray microscopic images.
title_sort	image alignment for tomography reconstruction from synchrotron x-ray microscopic images.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/db444ae525d5493590c7df56e9ed15ef
work_keys_str_mv	AT changchiehcheng imagealignmentfortomographyreconstructionfromsynchrotronxraymicroscopicimages AT chiachichien imagealignmentfortomographyreconstructionfromsynchrotronxraymicroscopicimages AT hsianghsinchen imagealignmentfortomographyreconstructionfromsynchrotronxraymicroscopicimages AT yeukuanghwu imagealignmentfortomographyreconstructionfromsynchrotronxraymicroscopicimages AT yutaiching imagealignmentfortomographyreconstructionfromsynchrotronxraymicroscopicimages
_version_	1718421531051163648

Image alignment for tomography reconstruction from synchrotron X-ray microscopic images.

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