{"id":"https://openalex.org/W2580392979","doi":"https://doi.org/10.3390/s17020269","title":"A Ring Artifact Correction Method: Validation by Micro-CT Imaging with Flat-Panel Detectors and a 2D Photon-Counting Detector","display_name":"A Ring Artifact Correction Method: Validation by Micro-CT Imaging with Flat-Panel Detectors and a 2D Photon-Counting Detector","publication_year":2017,"publication_date":"2017-01-30","ids":{"openalex":"https://openalex.org/W2580392979","doi":"https://doi.org/10.3390/s17020269","mag":"2580392979","pmid":"https://pubmed.ncbi.nlm.nih.gov/28146088"},"language":"en","primary_location":{"id":"doi:10.3390/s17020269","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s17020269","pdf_url":"https://www.mdpi.com/1424-8220/17/2/269/pdf?version=1486546859","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/17/2/269/pdf?version=1486546859","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064042384","display_name":"Mohamed Eldib","orcid":null},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Mohamed Eldib","raw_affiliation_strings":["Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076435530","display_name":"Mohamed A. A. Hegazy","orcid":"https://orcid.org/0000-0001-7192-2641"},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Mohamed Hegazy","raw_affiliation_strings":["Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041334596","display_name":"Yang Ji Mun","orcid":null},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Yang Mun","raw_affiliation_strings":["Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075453290","display_name":"Myung\u2010Haing Cho","orcid":"https://orcid.org/0000-0002-3993-2011"},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Myung Cho","raw_affiliation_strings":["Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045518493","display_name":"Min Cho","orcid":"https://orcid.org/0000-0003-4696-0173"},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Min Cho","raw_affiliation_strings":["Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea","institution_ids":["https://openalex.org/I35928602"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112386620","display_name":"Soo Lee","orcid":null},"institutions":[{"id":"https://openalex.org/I35928602","display_name":"Kyung Hee University","ror":"https://ror.org/01zqcg218","country_code":"KR","type":"education","lineage":["https://openalex.org/I35928602"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Soo Lee","raw_affiliation_strings":["Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Kyung Hee University, Yongin, Gyeonggi 17104, Korea","institution_ids":["https://openalex.org/I35928602"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5112386620"],"corresponding_institution_ids":["https://openalex.org/I35928602"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":1.8366,"has_fulltext":true,"cited_by_count":39,"citation_normalized_percentile":{"value":0.83927846,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"17","issue":"2","first_page":"269","last_page":"269"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12386","display_name":"Advanced X-ray and CT Imaging","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12386","display_name":"Advanced X-ray and CT Imaging","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10844","display_name":"Radiation Dose and Imaging","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.74679034948349},{"id":"https://openalex.org/keywords/flat-panel-detector","display_name":"Flat panel detector","score":0.6742691993713379},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.5645535588264465},{"id":"https://openalex.org/keywords/artifact","display_name":"Artifact (error)","score":0.561639130115509},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.5426230430603027},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.5363084077835083},{"id":"https://openalex.org/keywords/gaussian","display_name":"Gaussian","score":0.4770897328853607},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.4497152268886566},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3961852192878723},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3697565793991089},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3403492271900177},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3085708022117615},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.2934359312057495}],"concepts":[{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.74679034948349},{"id":"https://openalex.org/C94898600","wikidata":"https://www.wikidata.org/wiki/Q241433","display_name":"Flat panel detector","level":3,"score":0.6742691993713379},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5645535588264465},{"id":"https://openalex.org/C2779010991","wikidata":"https://www.wikidata.org/wiki/Q2720909","display_name":"Artifact (error)","level":2,"score":0.561639130115509},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.5426230430603027},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5363084077835083},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.4770897328853607},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.4497152268886566},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3961852192878723},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3697565793991089},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3403492271900177},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3085708022117615},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2934359312057495},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/s17020269","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s17020269","pdf_url":"https://www.mdpi.com/1424-8220/17/2/269/pdf?version=1486546859","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:28146088","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/28146088","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:34fb5d01a3184558b040c49deff1283b","is_oa":true,"landing_page_url":"https://doaj.org/article/34fb5d01a3184558b040c49deff1283b","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 17, Iss 2, p 269 (2017)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/17/2/269/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s17020269","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors; Volume 17; Issue 2; Pages: 269","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:5336082","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/5336082","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s17020269","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s17020269","pdf_url":"https://www.mdpi.com/1424-8220/17/2/269/pdf?version=1486546859","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3328065988","display_name":null,"funder_award_id":"2015M2A2A7A03043177","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"},{"id":"https://openalex.org/G5392983194","display_name":null,"funder_award_id":"2015R1A5A1037656","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"}],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"},{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2580392979.pdf","grobid_xml":"https://content.openalex.org/works/W2580392979.grobid-xml"},"referenced_works_count":25,"referenced_works":["https://openalex.org/W1965538147","https://openalex.org/W1970036744","https://openalex.org/W1971692947","https://openalex.org/W1981418870","https://openalex.org/W1983935556","https://openalex.org/W2011027222","https://openalex.org/W2011425447","https://openalex.org/W2033460421","https://openalex.org/W2047837140","https://openalex.org/W2055830678","https://openalex.org/W2061816342","https://openalex.org/W2066699196","https://openalex.org/W2067291138","https://openalex.org/W2067847818","https://openalex.org/W2086814698","https://openalex.org/W2095447271","https://openalex.org/W2125546022","https://openalex.org/W2130847494","https://openalex.org/W2132993624","https://openalex.org/W2142613904","https://openalex.org/W2147510162","https://openalex.org/W2164860288","https://openalex.org/W2167052594","https://openalex.org/W2532305447","https://openalex.org/W4300956802"],"related_works":["https://openalex.org/W52840052","https://openalex.org/W3162837891","https://openalex.org/W1687852313","https://openalex.org/W3029243869","https://openalex.org/W2502336004","https://openalex.org/W1741504538","https://openalex.org/W4308623176","https://openalex.org/W4230676417","https://openalex.org/W2019696434","https://openalex.org/W3158205231"],"abstract_inverted_index":{"We":[0,77,152],"introduce":[1],"an":[2],"efficient":[3],"ring":[4,192,203],"artifact":[5],"correction":[6,68,80],"method":[7,156,188,207],"for":[8],"a":[9,98,168,180],"cone-beam":[10],"computed":[11],"tomography":[12],"(CT).":[13],"In":[14,35,92],"the":[15,20,32,36,41,49,53,57,66,74,79,83,93,102,106,111,117,127,133,142,146,154,158,186,199,205,211],"first":[16],"step,":[17,38,95],"we":[18,39,63,96],"correct":[19],"defective":[21],"pixels":[22],"whose":[23],"values":[24],"are":[25],"close":[26],"to":[27,55,126,131,141,157],"zero":[28],"or":[29],"saturated":[30],"in":[31,52,116,145],"projection":[33,159],"domain.":[34],"second":[37],"compute":[40,65],"mean":[42,60,75],"value":[43],"at":[44],"each":[45],"detector":[46,172,196],"element":[47],"along":[48],"view":[50,90],"angle":[51],"sinogram":[54,84,147],"obtain":[56],"one-dimensional":[58],"(1D)":[59],"vector,":[61],"and":[62,110,167,179,215],"then":[64],"1D":[67],"vector":[69,81],"by":[70,86,162],"taking":[71],"inverse":[72],"of":[73,177,195,202],"vector.":[76],"multiply":[78],"with":[82],"row":[85,87],"over":[88],"all":[89],"angles.":[91],"third":[94],"apply":[97],"Gaussian":[99],"filter":[100],"on":[101],"difference":[103,122],"image":[104,109,114,123,130],"between":[105],"original":[107,212],"CT":[108,113,129],"corrected":[112,128],"obtained":[115],"previous":[118],"step.":[119],"The":[120],"filtered":[121],"is":[124],"added":[125],"compensate":[132],"possible":[134],"contrast":[135,143],"anomaly":[136],"that":[137,185],"may":[138],"appear":[139],"due":[140],"change":[144],"after":[148],"removing":[149],"stripe":[150],"artifacts.":[151],"applied":[153],"proposed":[155,187,206],"data":[160],"acquired":[161],"two":[163],"flat-panel":[164],"detectors":[165],"(FPDs)":[166],"silicon-based":[169],"photon-counting":[170],"X-ray":[171],"(PCXD).":[173],"Micro-CT":[174],"imaging":[175],"experiments":[176],"phantoms":[178],"small":[181],"animal":[182],"have":[183],"shown":[184],"can":[189],"greatly":[190],"reduce":[191],"artifacts":[193],"regardless":[194],"types.":[197],"Despite":[198],"great":[200],"reduction":[201],"artifacts,":[204],"does":[208],"not":[209],"compromise":[210],"spatial":[213],"resolution":[214],"contrast.":[216]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":9},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":2}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}