{"id":"https://openalex.org/W2015392104","doi":"https://doi.org/10.1002/scj.4690231207","title":"Three\u2010dimensional helical\u2010scan computed tomography using cone\u2010beam projections","display_name":"Three\u2010dimensional helical\u2010scan computed tomography using cone\u2010beam projections","publication_year":1992,"publication_date":"1992-01-01","ids":{"openalex":"https://openalex.org/W2015392104","doi":"https://doi.org/10.1002/scj.4690231207","mag":"2015392104"},"language":"en","primary_location":{"id":"doi:10.1002/scj.4690231207","is_oa":false,"landing_page_url":"https://doi.org/10.1002/scj.4690231207","pdf_url":null,"source":{"id":"https://openalex.org/S58208175","display_name":"Systems and Computers in Japan","issn_l":"0882-1666","issn":["0882-1666","1520-684X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Systems and Computers in Japan","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5007799069","display_name":"Hiroyuki Kudo","orcid":"https://orcid.org/0000-0001-7256-6554"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Hiroyuki Kudo","raw_affiliation_strings":["Faculty of Engineering, Tohoku University, Sendai, Japan 980","Hiroyuki Kudo:  graduated from Tohoku University with a degree in engineering and communications in 1985 and completed doctoral studies there in 1990. That same year he became an Assistant Professor at Tohoku University. His research interests include image processing, pattern recognition, and imaging of living organisms. In 1989, he was the recipient of the Dissertation Award of this Society"],"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Tohoku University, Sendai, Japan 980","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Hiroyuki Kudo:  graduated from Tohoku University with a degree in engineering and communications in 1985 and completed doctoral studies there in 1990. That same year he became an Assistant Professor at Tohoku University. His research interests include image processing, pattern recognition, and imaging of living organisms. In 1989, he was the recipient of the Dissertation Award of this Society","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103727927","display_name":"Tsuneo Saito","orcid":null},"institutions":[{"id":"https://openalex.org/I146399215","display_name":"University of Tsukuba","ror":"https://ror.org/02956yf07","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tsuneo Saito","raw_affiliation_strings":["Institute of Information Sciences and Electronics, University of Tsukuba, Tsukuba, Japan 305","Tsuneo Saito:  graduated from Tohoku University with a degree in engineering and communications in 1963, and he completed the doctoral course in 1968. That same year, he became an Assistant Professor at Tohoku University. Since then, his research interests have been on nonlinear circuits, digital signal processing, and image processing. He is currently a Professor at the University of Tsukuba"],"affiliations":[{"raw_affiliation_string":"Institute of Information Sciences and Electronics, University of Tsukuba, Tsukuba, Japan 305","institution_ids":["https://openalex.org/I146399215"]},{"raw_affiliation_string":"Tsuneo Saito:  graduated from Tohoku University with a degree in engineering and communications in 1963, and he completed the doctoral course in 1968. That same year, he became an Assistant Professor at Tohoku University. Since then, his research interests have been on nonlinear circuits, digital signal processing, and image processing. He is currently a Professor at the University of Tsukuba","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5007799069"],"corresponding_institution_ids":["https://openalex.org/I201537933"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.0923175,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":95},"biblio":{"volume":"23","issue":"12","first_page":"75","last_page":"82"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":1.0,"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/T10358","display_name":"Advanced Radiotherapy Techniques","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12386","display_name":"Advanced X-ray and CT Imaging","score":0.9987999796867371,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/translation","display_name":"Translation (biology)","score":0.7054603099822998},{"id":"https://openalex.org/keywords/rotation","display_name":"Rotation (mathematics)","score":0.6696760654449463},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.6631467342376709},{"id":"https://openalex.org/keywords/helical-scan","display_name":"Helical scan","score":0.6624035239219666},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.616595447063446},{"id":"https://openalex.org/keywords/convolution","display_name":"Convolution (computer science)","score":0.5961601734161377},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5252620577812195},{"id":"https://openalex.org/keywords/beam","display_name":"Beam (structure)","score":0.521543025970459},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.47558772563934326},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.46691063046455383},{"id":"https://openalex.org/keywords/iterative-reconstruction","display_name":"Iterative reconstruction","score":0.4560219943523407},{"id":"https://openalex.org/keywords/field-of-view","display_name":"Field of view","score":0.441513329744339},{"id":"https://openalex.org/keywords/conical-surface","display_name":"Conical surface","score":0.4221077263355255},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4053972363471985},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.39452964067459106},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.35507991909980774},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3348204791545868},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.22431868314743042}],"concepts":[{"id":"https://openalex.org/C149364088","wikidata":"https://www.wikidata.org/wiki/Q185917","display_name":"Translation (biology)","level":4,"score":0.7054603099822998},{"id":"https://openalex.org/C74050887","wikidata":"https://www.wikidata.org/wiki/Q848368","display_name":"Rotation (mathematics)","level":2,"score":0.6696760654449463},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.6631467342376709},{"id":"https://openalex.org/C188256105","wikidata":"https://www.wikidata.org/wiki/Q1759953","display_name":"Helical scan","level":4,"score":0.6624035239219666},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.616595447063446},{"id":"https://openalex.org/C45347329","wikidata":"https://www.wikidata.org/wiki/Q5166604","display_name":"Convolution (computer science)","level":3,"score":0.5961601734161377},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5252620577812195},{"id":"https://openalex.org/C168834538","wikidata":"https://www.wikidata.org/wiki/Q3705329","display_name":"Beam (structure)","level":2,"score":0.521543025970459},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.47558772563934326},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.46691063046455383},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.4560219943523407},{"id":"https://openalex.org/C150627866","wikidata":"https://www.wikidata.org/wiki/Q1076893","display_name":"Field of view","level":2,"score":0.441513329744339},{"id":"https://openalex.org/C124961601","wikidata":"https://www.wikidata.org/wiki/Q2518149","display_name":"Conical surface","level":2,"score":0.4221077263355255},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4053972363471985},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.39452964067459106},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.35507991909980774},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3348204791545868},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.22431868314743042},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C2776140076","wikidata":"https://www.wikidata.org/wiki/Q193663","display_name":"Magnetic tape","level":3,"score":0.0},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C2780415423","wikidata":"https://www.wikidata.org/wiki/Q2473736","display_name":"Digital recording","level":2,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C105580179","wikidata":"https://www.wikidata.org/wiki/Q188928","display_name":"Messenger RNA","level":3,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1002/scj.4690231207","is_oa":false,"landing_page_url":"https://doi.org/10.1002/scj.4690231207","pdf_url":null,"source":{"id":"https://openalex.org/S58208175","display_name":"Systems and Computers in Japan","issn_l":"0882-1666","issn":["0882-1666","1520-684X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Systems and Computers in Japan","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities","score":0.4000000059604645}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1776152174","https://openalex.org/W2001869140","https://openalex.org/W2070553288","https://openalex.org/W2120977158","https://openalex.org/W2157812230"],"related_works":["https://openalex.org/W2363967645","https://openalex.org/W2358332696","https://openalex.org/W2910982703","https://openalex.org/W2718067073","https://openalex.org/W2364131922","https://openalex.org/W2373128913","https://openalex.org/W1968830725","https://openalex.org/W2367625424","https://openalex.org/W2126219016","https://openalex.org/W2025471484"],"abstract_inverted_index":{"Abstract":[0],"In":[1,28,139],"this":[2,140,146],"paper,":[3,141],"we":[4],"propose":[5],"an":[6,32,165,179],"image":[7],"reconstruction":[8,181],"method":[9,74,105,182,187],"and":[10,39,85,92,168,172,204],"computed":[11],"tomography":[12],"(CT)":[13],"equipment":[14],"with":[15],"high":[16,26],"resolving":[17],"power":[18],"that":[19,35,131,160],"generates":[20],"three\u2010dimensional":[21],"CT":[22],"images":[23],"at":[24,59],"a":[25,40,77,90,103,113,151,157,169,198],"speed.":[27],"the":[29,51,54,60,63,66,70,81,86,93,108,118,122,132,137,148,175,185,201,206,209],"proposed":[30,102,210],"method,":[31],"X\u2010ray":[33,109,133,166],"source":[34,110,167],"irradiates":[36],"conical":[37],"X\u2010rays":[38,87],"two\u2010dimensional":[41,170],"detector":[42,47,171],"which":[43,107],"consists":[44],"of":[45,53,121,150,164,174,200,208],"fan\u2010beam":[46,189],"arrays":[48],"stacked":[49],"in":[50,69,106,142],"direction":[52],"object's":[55],"axis":[56],"rotate":[57],"continuously":[58],"same":[61,94],"time":[62],"bed":[64],"carrying":[65],"object":[67,82],"translates":[68],"visual":[71],"field.":[72],"This":[73],"is":[75,83,154],"called":[76],"helical":[78,152],"scan":[79,153],"because":[80,127],"fixed":[84],"move":[88],"on":[89,112,156,184,197],"helix":[91,114],"measurement":[95],"data":[96],"are":[97],"obtained.":[98],"We":[99,177,191],"have":[100],"previously":[101],"scanning":[104],"moves":[111],"[4,":[115],"6].":[116],"However,":[117],"physical":[119],"implementation":[120,149],"previous":[123],"proposal":[124],"was":[125,129],"difficult":[126],"it":[128],"assumed":[130],"beam":[134],"completely":[135],"covers":[136],"object.":[138,176],"order":[143],"to":[144],"solve":[145],"problem,":[147],"based":[155,183,196],"practical":[158],"model":[159,199],"combines":[161],"continuous":[162],"rotation":[163],"translation":[173],"derive":[178],"approximate":[180],"convolution/back\u2010projection":[186],"for":[188],"projections.":[190],"also":[192],"perform":[193],"simulation":[194],"tests":[195],"human":[202],"head":[203],"demonstrate":[205],"effectiveness":[207],"method.":[211]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}