Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images

Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images

A method for detecting and attenuating grid artifacts in a digital radiographic image comprising; providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determ...

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Hauptverfasser: Belykh, Igor N, Cornelius, Craig W
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Sprache:eng
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creator Belykh, Igor N
Cornelius, Craig W
description A method for detecting and attenuating grid artifacts in a digital radiographic image comprising; providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determine whether the input digital radiographic image has a grid artifacts; and if it does detecting the grid orientation, frequency, and signal-to-noise ratio of the grid artifacts, designing a frequency bandstop (notch) digital 1-D filter as a function of the grid frequency and attenuation level; and suppressing the grid artifacts by further processing said input digital radiographic image with said designed filter to produce an output digital radiographic image of improved image quality.
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Cornelius, Craig W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-uspatents_grants_071740383</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><toplevel>online_resources</toplevel><creatorcontrib>Belykh, Igor N</creatorcontrib><creatorcontrib>Cornelius, Craig W</creatorcontrib><creatorcontrib>Eastman Kodak Company</creatorcontrib><collection>USPTO Issued Patents</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Belykh, Igor N</au><au>Cornelius, Craig W</au><aucorp>Eastman Kodak Company</aucorp><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images</title><date>2007-02-06</date><risdate>2007</risdate><abstract>A method for detecting and attenuating grid artifacts in a digital radiographic image comprising; providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determine whether the input digital radiographic image has a grid artifacts; and if it does detecting the grid orientation, frequency, and signal-to-noise ratio of the grid artifacts, designing a frequency bandstop (notch) digital 1-D filter as a function of the grid frequency and attenuation level; and suppressing the grid artifacts by further processing said input digital radiographic image with said designed filter to produce an output digital radiographic image of improved image quality.</abstract><oa>free_for_read</oa></addata></record>
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title Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images
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