Cited 32 times in
Computed tomographic beam-hardening artefacts: mathematical characterization and analysis.
DC Field | Value | Language |
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dc.contributor.author | 정용은 | - |
dc.date.accessioned | 2016-02-04T11:16:40Z | - |
dc.date.available | 2016-02-04T11:16:40Z | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 1364-503X | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/140066 | - |
dc.description.abstract | This paper presents a mathematical characterization and analysis of beam-hardening artefacts in X-ray computed tomography (CT). In the field of dental and medical radiography, metal artefact reduction in CT is becoming increasingly important as artificial prostheses and metallic implants become more widespread in ageing populations. Metal artefacts are mainly caused by the beam-hardening of polychromatic X-ray photon beams, which causes mismatch between the actual sinogram data and the data model being the Radon transform of the unknown attenuation distribution in the CT reconstruction algorithm. We investigate the beam-hardening factor through a mathematical analysis of the discrepancy between the data and the Radon transform of the attenuation distribution at a fixed energy level. Separation of cupping artefacts from beam-hardening artefacts allows causes and effects of streaking artefacts to be analysed. Various computer simulations and experiments are performed to support our mathematical analysis. | - |
dc.description.statementOfResponsibility | open | - |
dc.relation.isPartOf | PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.title | Computed tomographic beam-hardening artefacts: mathematical characterization and analysis. | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiology (영상의학) | - |
dc.contributor.googleauthor | Hyoung Suk Park | - |
dc.contributor.googleauthor | Yong Eun Chung | - |
dc.contributor.googleauthor | Jin Keun Seo | - |
dc.identifier.doi | 10.1098/rsta.2014.0388 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A03662 | - |
dc.relation.journalcode | J02513 | - |
dc.identifier.eissn | 1471-2962 | - |
dc.identifier.pmid | 25939628 | - |
dc.identifier.url | http://rsta.royalsocietypublishing.org/content/373/2043/20140388.abstract | - |
dc.subject.keyword | Radon transform | - |
dc.subject.keyword | beam-hardening artefacts | - |
dc.subject.keyword | computerized tomography | - |
dc.subject.keyword | wavefront set | - |
dc.contributor.alternativeName | Chung, Yong Eun | - |
dc.contributor.affiliatedAuthor | Chung, Yong Eun | - |
dc.rights.accessRights | not free | - |
dc.citation.volume | 373 | - |
dc.citation.number | 2043 | - |
dc.citation.startPage | 20140388 | - |
dc.identifier.bibliographicCitation | PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol.373(2043) : 20140388, 2015 | - |
dc.identifier.rimsid | 45609 | - |
dc.type.rims | ART | - |
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