{"id":"https://openalex.org/W4407051732","doi":"https://doi.org/10.1109/tci.2025.3536078","title":"Cascaded Frequency-Encoded Multi-Scale Neural Fields for Sparse-View CT Reconstruction","display_name":"Cascaded Frequency-Encoded Multi-Scale Neural Fields for Sparse-View CT Reconstruction","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4407051732","doi":"https://doi.org/10.1109/tci.2025.3536078"},"language":"en","primary_location":{"id":"doi:10.1109/tci.2025.3536078","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tci.2025.3536078","pdf_url":null,"source":{"id":"https://openalex.org/S4210233665","display_name":"IEEE Transactions on Computational Imaging","issn_l":"2333-9403","issn":["2333-9403","2334-0118","2573-0436"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Computational Imaging","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/A5110928024","display_name":"Jia Wu","orcid":"https://orcid.org/0009-0007-6710-4137"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jia Wu","raw_affiliation_strings":["School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China"],"raw_orcid":"https://orcid.org/0009-0007-6710-4137","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087882200","display_name":"Jinzhao Lin","orcid":"https://orcid.org/0000-0001-8165-9007"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinzhao Lin","raw_affiliation_strings":["School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0001-8165-9007","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101653613","display_name":"Yu Pang","orcid":"https://orcid.org/0000-0002-7507-5387"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yu Pang","raw_affiliation_strings":["School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0002-7507-5387","affiliations":[{"raw_affiliation_string":"School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036390761","display_name":"Xiaoming Jiang","orcid":"https://orcid.org/0000-0002-8184-1578"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaoming Jiang","raw_affiliation_strings":["Chongqing Engineering Research Center of Medical Electronics and Information Technology, Chongqing University of Posts and Telecommunications, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0002-8184-1578","affiliations":[{"raw_affiliation_string":"Chongqing Engineering Research Center of Medical Electronics and Information Technology, Chongqing University of Posts and Telecommunications, Chongqing, China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100461518","display_name":"Xinwei Li","orcid":"https://orcid.org/0000-0003-0713-9366"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinwei Li","raw_affiliation_strings":["Chongqing Engineering Research Center of Medical Electronics and Information Technology, Chongqing University of Posts and Telecommunications, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0003-0713-9366","affiliations":[{"raw_affiliation_string":"Chongqing Engineering Research Center of Medical Electronics and Information Technology, Chongqing University of Posts and Telecommunications, Chongqing, China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108055798","display_name":"Hongying Meng","orcid":"https://orcid.org/0000-0002-8836-1382"},"institutions":[{"id":"https://openalex.org/I59433898","display_name":"Brunel University of London","ror":"https://ror.org/00dn4t376","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I59433898"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Hongying Meng","raw_affiliation_strings":["Department of Electronic and Electrical Engineering, Brunel University of London, Uxbridge, U.K"],"raw_orcid":"https://orcid.org/0000-0002-8836-1382","affiliations":[{"raw_affiliation_string":"Department of Electronic and Electrical Engineering, Brunel University of London, Uxbridge, U.K","institution_ids":["https://openalex.org/I59433898"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113174926","display_name":"Yamei Luo","orcid":null},"institutions":[{"id":"https://openalex.org/I3017480383","display_name":"Southwest Medical University","ror":"https://ror.org/00g2rqs52","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I3017480383"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yamei Luo","raw_affiliation_strings":["School of Medical Information and Engineering, Southwest Medical University, Luzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Medical Information and Engineering, Southwest Medical University, Luzhou, China","institution_ids":["https://openalex.org/I3017480383"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100574441","display_name":"Lu Yang","orcid":"https://orcid.org/0009-0004-3120-0571"},"institutions":[{"id":"https://openalex.org/I4210086248","display_name":"Affiliated Hospital of Southwest Medical University","ror":"https://ror.org/0014a0n68","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I4210086248"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lu Yang","raw_affiliation_strings":["Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China","institution_ids":["https://openalex.org/I4210086248"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101982180","display_name":"Zhangyong Li","orcid":"https://orcid.org/0000-0003-0712-2759"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhangyong Li","raw_affiliation_strings":["Chongqing Engineering Research Center of Medical Electronics and Information Technology, Chongqing University of Posts and Telecommunications, Chongqing, China"],"raw_orcid":"https://orcid.org/0000-0003-0712-2759","affiliations":[{"raw_affiliation_string":"Chongqing Engineering Research Center of Medical Electronics and Information Technology, Chongqing University of Posts and Telecommunications, Chongqing, China","institution_ids":["https://openalex.org/I10535382"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.4118,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.77523911,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":96},"biblio":{"volume":"11","issue":null,"first_page":"237","last_page":"250"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.9998000264167786,"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":0.9998000264167786,"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/T12386","display_name":"Advanced X-ray and CT Imaging","score":0.9991000294685364,"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/T10378","display_name":"Advanced MRI Techniques and Applications","score":0.9959999918937683,"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/iterative-reconstruction","display_name":"Iterative reconstruction","score":0.5847028493881226},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.508354127407074},{"id":"https://openalex.org/keywords/scale","display_name":"Scale (ratio)","score":0.47304457426071167},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4661601483821869},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4360525608062744},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.17644909024238586}],"concepts":[{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.5847028493881226},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.508354127407074},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.47304457426071167},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4661601483821869},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4360525608062744},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.17644909024238586},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tci.2025.3536078","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tci.2025.3536078","pdf_url":null,"source":{"id":"https://openalex.org/S4210233665","display_name":"IEEE Transactions on Computational Imaging","issn_l":"2333-9403","issn":["2333-9403","2334-0118","2573-0436"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Computational Imaging","raw_type":"journal-article"},{"id":"pmh:oai:bura.brunel.ac.uk:2438/30817","is_oa":false,"landing_page_url":"https://orcid.org/0000-0002-7507-5387","pdf_url":null,"source":{"id":"https://openalex.org/S4306401473","display_name":"Brunel University Research Archive (BURA) (Brunel University London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I59433898","host_organization_name":"Brunel University of London","host_organization_lineage":["https://openalex.org/I59433898"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3244115114","display_name":null,"funder_award_id":"62171073","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5360727107","display_name":null,"funder_award_id":"CSTB2023NSCQ-LZX0064","funder_id":"https://openalex.org/F4320323172","funder_display_name":"Natural Science Foundation of Chongqing"},{"id":"https://openalex.org/G6931558010","display_name":null,"funder_award_id":"U21A20447","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7278974768","display_name":null,"funder_award_id":"62471077","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8257566853","display_name":null,"funder_award_id":"CSTB2022NSCQ-LZX0069","funder_id":"https://openalex.org/F4320323172","funder_display_name":"Natural Science Foundation of Chongqing"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320323172","display_name":"Natural Science Foundation of Chongqing","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":49,"referenced_works":["https://openalex.org/W1522301498","https://openalex.org/W2002611249","https://openalex.org/W2094366314","https://openalex.org/W2471048935","https://openalex.org/W2574952845","https://openalex.org/W2603901191","https://openalex.org/W2607406448","https://openalex.org/W2793419304","https://openalex.org/W2883633804","https://openalex.org/W2883683269","https://openalex.org/W2924878362","https://openalex.org/W2962834855","https://openalex.org/W2963360077","https://openalex.org/W2963923251","https://openalex.org/W3046581697","https://openalex.org/W3101765447","https://openalex.org/W3112965401","https://openalex.org/W3172797549","https://openalex.org/W3174865552","https://openalex.org/W3179022832","https://openalex.org/W3195875706","https://openalex.org/W3198632145","https://openalex.org/W3203281102","https://openalex.org/W3211148078","https://openalex.org/W3213204639","https://openalex.org/W4200150166","https://openalex.org/W4221151978","https://openalex.org/W4286616024","https://openalex.org/W4312318701","https://openalex.org/W4312730028","https://openalex.org/W4313526215","https://openalex.org/W4322490811","https://openalex.org/W4362603432","https://openalex.org/W4379117105","https://openalex.org/W4386066812","https://openalex.org/W4386075629","https://openalex.org/W4386362656","https://openalex.org/W4387789684","https://openalex.org/W4402952320","https://openalex.org/W6631190155","https://openalex.org/W6746466744","https://openalex.org/W6779753539","https://openalex.org/W6780179280","https://openalex.org/W6803078664","https://openalex.org/W6803678448","https://openalex.org/W6839052650","https://openalex.org/W6850817948","https://openalex.org/W6859298233","https://openalex.org/W6861342692"],"related_works":["https://openalex.org/W2772917594","https://openalex.org/W2036807459","https://openalex.org/W2058170566","https://openalex.org/W2755342338","https://openalex.org/W2166024367","https://openalex.org/W3116076068","https://openalex.org/W2229312674","https://openalex.org/W2951359407","https://openalex.org/W2079911747","https://openalex.org/W1969923398"],"abstract_inverted_index":{"Sparse-view":[0],"computed":[1],"tomography":[2],"aims":[3],"to":[4,16,23,75],"reduce":[5],"radiation":[6],"exposure":[7],"but":[8],"often":[9],"suffers":[10],"from":[11],"degraded":[12],"image":[13],"quality":[14],"due":[15],"insufficient":[17],"projection":[18],"data.":[19],"Traditional":[20],"methods":[21],"struggle":[22],"balance":[24],"data":[25,113],"fidelity":[26],"and":[27,92,115,124,139,145],"detail":[28],"preservation,":[29],"particularly":[30],"in":[31,135],"high-frequency":[32,54,77],"regions.":[33],"In":[34],"this":[35],"paper,":[36],"we":[37],"propose":[38],"a":[39,57,63,73],"Cascaded":[40],"Frequency-Encoded":[41],"Multi-Scale":[42],"Neural":[43],"Fields":[44],"(Ca-FMNF)":[45],"framework.":[46],"We":[47],"reformulate":[48],"the":[49,86,89,96,102,106,132],"reconstruction":[50],"task":[51],"as":[52],"refining":[53,101],"residuals":[55,103],"upon":[56],"high-quality":[58],"low-frequency":[59,70],"foundation.":[60],"It":[61],"integrates":[62],"pre-trained":[64],"iterative":[65],"unfolding":[66],"network":[67],"for":[68],"initial":[69,107],"estimation":[71],"with":[72],"FMNF":[74,80],"represent":[76],"residuals.":[78],"The":[79,119],"parameters":[81],"are":[82],"optimized":[83],"by":[84],"minimizing":[85],"discrepancy":[87],"between":[88],"measured":[90],"projections":[91],"those":[93],"estimated":[94],"through":[95],"imaging":[97],"forward":[98],"model,":[99],"thereby":[100],"based":[104],"on":[105,122],"estimation.":[108],"This":[109],"dual-stage":[110],"strategy":[111],"enhances":[112],"consistency":[114],"preserves":[116],"fine":[117],"structures.":[118],"extensive":[120],"experiments":[121],"simulated":[123],"clinical":[125],"datasets":[126],"demonstrate":[127],"that":[128],"our":[129],"method":[130],"achieves":[131],"optimal":[133],"results":[134],"both":[136],"quantitative":[137],"metrics":[138],"visual":[140],"quality,":[141],"effectively":[142],"reducing":[143],"artifacts":[144],"preserving":[146],"structural":[147],"details.":[148]},"counts_by_year":[{"year":2025,"cited_by_count":2}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}