Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods

Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods

We construct a medical X-ray direct digital radiography (DDR) system based on a CCD (charge-coupled devices) camera. For the original images captured from X-ray exposure, computer first executes image flat-field correction and image gamma correction, and then carries out image contrast enhancement....

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Main Authors: Ren, Yong, Wu, Sheng, Wang, Mijian, Cen, Zhongjie
Format: Online
Language:English
Published: Hindawi Publishing Corporation 2014
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4074983/
id pubmed-4074983
recordtype oai_dc
spelling pubmed-40749832014-07-10 Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods Ren, Yong Wu, Sheng Wang, Mijian Cen, Zhongjie Research Article We construct a medical X-ray direct digital radiography (DDR) system based on a CCD (charge-coupled devices) camera. For the original images captured from X-ray exposure, computer first executes image flat-field correction and image gamma correction, and then carries out image contrast enhancement. A hybrid image contrast enhancement algorithm which is based on sharp frequency localization-contourlet transform (SFL-CT) and contrast limited adaptive histogram equalization (CLAHE), is proposed and verified by the clinical DDR images. Experimental results show that, for the medical X-ray DDR images, the proposed comprehensive preprocessing algorithm can not only greatly enhance the contrast and detail information, but also improve the resolution capability of DDR system. Hindawi Publishing Corporation 2014 2014-06-11 /pmc/articles/PMC4074983/ /pubmed/25013452 http://dx.doi.org/10.1155/2014/495729 Text en Copyright © 2014 Yong Ren et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Ren, Yong
Wu, Sheng
Wang, Mijian
Cen, Zhongjie
spellingShingle Ren, Yong
Wu, Sheng
Wang, Mijian
Cen, Zhongjie
Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods
author_facet Ren, Yong
Wu, Sheng
Wang, Mijian
Cen, Zhongjie
author_sort Ren, Yong
title Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods
title_short Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods
title_full Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods
title_fullStr Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods
title_full_unstemmed Study on Construction of a Medical X-Ray Direct Digital Radiography System and Hybrid Preprocessing Methods
title_sort study on construction of a medical x-ray direct digital radiography system and hybrid preprocessing methods
description We construct a medical X-ray direct digital radiography (DDR) system based on a CCD (charge-coupled devices) camera. For the original images captured from X-ray exposure, computer first executes image flat-field correction and image gamma correction, and then carries out image contrast enhancement. A hybrid image contrast enhancement algorithm which is based on sharp frequency localization-contourlet transform (SFL-CT) and contrast limited adaptive histogram equalization (CLAHE), is proposed and verified by the clinical DDR images. Experimental results show that, for the medical X-ray DDR images, the proposed comprehensive preprocessing algorithm can not only greatly enhance the contrast and detail information, but also improve the resolution capability of DDR system.
publisher Hindawi Publishing Corporation
publishDate 2014
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4074983/
_version_ 1612107556706058240

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