EXTENDED FIELD ITERATIVE RECONSTRUCTION TECHNIQUE (EFIRT) FOR CORRELATED NOISE REMOVAL
Computerized method and system for improving 3D reconstruction images involves applying the Extended Field Iterative Reconstruction Technique (EFIRT) to remove correlated noise, in addition to using COMET (constrained maximum relative entropy tomography) to eliminate uncorrelated noise, wherein the...
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| creator | OFVERSTEDT, LARS-GORAN WALLENTIN SKOGLUND, BO ULF MAHMOOD, FAISAL |
| description | Computerized method and system for improving 3D reconstruction images involves applying the Extended Field Iterative Reconstruction Technique (EFIRT) to remove correlated noise, in addition to using COMET (constrained maximum relative entropy tomography) to eliminate uncorrelated noise, wherein the EFIRT is applied by performing a set of successive reconstructions on an extended field larger than a region of interest (ROI); and extracting and averaging the ROI from said set of successive reconstructions.
La présente invention concerne un procédé et un système informatisés permettant d'améliorer des images de reconstruction 3D, qui consiste à appliquer la technique de reconstruction itérative de champ étendu (EFIRT) pour supprimer un bruit corrélé, en plus de l'utilisation de la technique COMET (tomographie à maximum d'entropie relative sous contrainte) pour éliminer un bruit non corrélé, la technique EFIRT étant appliquée par la réalisation d'un ensemble de reconstructions successives sur un champ étendu plus grand qu'une région d'intérêt (ROI); et par l'extraction et le calcul de la moyenne de la ROI à partir dudit ensemble de reconstructions successives. |
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La présente invention concerne un procédé et un système informatisés permettant d'améliorer des images de reconstruction 3D, qui consiste à appliquer la technique de reconstruction itérative de champ étendu (EFIRT) pour supprimer un bruit corrélé, en plus de l'utilisation de la technique COMET (tomographie à maximum d'entropie relative sous contrainte) pour éliminer un bruit non corrélé, la technique EFIRT étant appliquée par la réalisation d'un ensemble de reconstructions successives sur un champ étendu plus grand qu'une région d'intérêt (ROI); et par l'extraction et le calcul de la moyenne de la ROI à partir dudit ensemble de reconstructions successives.</description><language>eng ; fre</language><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>2014</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140918&DB=EPODOC&CC=WO&NR=2014141630A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25553,76306</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140918&DB=EPODOC&CC=WO&NR=2014141630A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OFVERSTEDT, LARS-GORAN WALLENTIN</creatorcontrib><creatorcontrib>SKOGLUND, BO ULF</creatorcontrib><creatorcontrib>MAHMOOD, FAISAL</creatorcontrib><title>EXTENDED FIELD ITERATIVE RECONSTRUCTION TECHNIQUE (EFIRT) FOR CORRELATED NOISE REMOVAL</title><description>Computerized method and system for improving 3D reconstruction images involves applying the Extended Field Iterative Reconstruction Technique (EFIRT) to remove correlated noise, in addition to using COMET (constrained maximum relative entropy tomography) to eliminate uncorrelated noise, wherein the EFIRT is applied by performing a set of successive reconstructions on an extended field larger than a region of interest (ROI); and extracting and averaging the ROI from said set of successive reconstructions.
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La présente invention concerne un procédé et un système informatisés permettant d'améliorer des images de reconstruction 3D, qui consiste à appliquer la technique de reconstruction itérative de champ étendu (EFIRT) pour supprimer un bruit corrélé, en plus de l'utilisation de la technique COMET (tomographie à maximum d'entropie relative sous contrainte) pour éliminer un bruit non corrélé, la technique EFIRT étant appliquée par la réalisation d'un ensemble de reconstructions successives sur un champ étendu plus grand qu'une région d'intérêt (ROI); et par l'extraction et le calcul de la moyenne de la ROI à partir dudit ensemble de reconstructions successives.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | EXTENDED FIELD ITERATIVE RECONSTRUCTION TECHNIQUE (EFIRT) FOR CORRELATED NOISE REMOVAL |
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