{"id":"https://openalex.org/W4375868998","doi":"https://doi.org/10.1109/icassp49357.2023.10095791","title":"Factorized Projection-Domain Spatio-Temporal Regularization for Dynamic Tomography","display_name":"Factorized Projection-Domain Spatio-Temporal Regularization for Dynamic Tomography","publication_year":2023,"publication_date":"2023-05-05","ids":{"openalex":"https://openalex.org/W4375868998","doi":"https://doi.org/10.1109/icassp49357.2023.10095791"},"language":"en","primary_location":{"id":"doi:10.1109/icassp49357.2023.10095791","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp49357.2023.10095791","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-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/A5075585920","display_name":"Berk Iskender","orcid":"https://orcid.org/0000-0002-9780-8799"},"institutions":[{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Berk Iskender","raw_affiliation_strings":["University of Illinois at Urbana-Champaign,Dept. of ECE and Coordinated Science Lab,IL,USA","Dept. of ECE and Coordinated Science Lab, University of Illinois at Urbana-Champaign, IL, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Illinois at Urbana-Champaign,Dept. of ECE and Coordinated Science Lab,IL,USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"Dept. of ECE and Coordinated Science Lab, University of Illinois at Urbana-Champaign, IL, USA","institution_ids":["https://openalex.org/I157725225"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007504310","display_name":"Marc Klasky","orcid":"https://orcid.org/0000-0002-1283-0891"},"institutions":[{"id":"https://openalex.org/I1343871089","display_name":"Los Alamos National Laboratory","ror":"https://ror.org/01e41cf67","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I1343871089","https://openalex.org/I198811213","https://openalex.org/I4210120050"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Marc L. Klasky","raw_affiliation_strings":["Los Alamos National Laboratory,Los Alamos,NM,USA","Los Alamos National Laboratory, Los Alamos, NM, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Los Alamos National Laboratory,Los Alamos,NM,USA","institution_ids":["https://openalex.org/I1343871089"]},{"raw_affiliation_string":"Los Alamos National Laboratory, Los Alamos, NM, USA","institution_ids":["https://openalex.org/I1343871089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010616561","display_name":"Brian M. Patterson","orcid":"https://orcid.org/0000-0001-9244-7376"},"institutions":[{"id":"https://openalex.org/I1343871089","display_name":"Los Alamos National Laboratory","ror":"https://ror.org/01e41cf67","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I1343871089","https://openalex.org/I198811213","https://openalex.org/I4210120050"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Brian M. Patterson","raw_affiliation_strings":["Los Alamos National Laboratory,Los Alamos,NM,USA","Los Alamos National Laboratory, Los Alamos, NM, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Los Alamos National Laboratory,Los Alamos,NM,USA","institution_ids":["https://openalex.org/I1343871089"]},{"raw_affiliation_string":"Los Alamos National Laboratory, Los Alamos, NM, USA","institution_ids":["https://openalex.org/I1343871089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5026523226","display_name":"Yoram Bresler","orcid":"https://orcid.org/0000-0002-9738-1094"},"institutions":[{"id":"https://openalex.org/I157725225","display_name":"University of Illinois Urbana-Champaign","ror":"https://ror.org/047426m28","country_code":"US","type":"education","lineage":["https://openalex.org/I157725225"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yoram Bresler","raw_affiliation_strings":["University of Illinois at Urbana-Champaign,Dept. of ECE and Coordinated Science Lab,IL,USA","Dept. of ECE and Coordinated Science Lab, University of Illinois at Urbana-Champaign, IL, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Illinois at Urbana-Champaign,Dept. of ECE and Coordinated Science Lab,IL,USA","institution_ids":["https://openalex.org/I157725225"]},{"raw_affiliation_string":"Dept. of ECE and Coordinated Science Lab, University of Illinois at Urbana-Champaign, IL, USA","institution_ids":["https://openalex.org/I157725225"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.6579,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.7044658,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.9997000098228455,"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":0.9997000098228455,"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/T10378","display_name":"Advanced MRI Techniques and Applications","score":0.9983999729156494,"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9972000122070312,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/interpretability","display_name":"Interpretability","score":0.8361705541610718},{"id":"https://openalex.org/keywords/regularization","display_name":"Regularization (linguistics)","score":0.682655930519104},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.617716908454895},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.516232967376709},{"id":"https://openalex.org/keywords/separable-space","display_name":"Separable space","score":0.5126230120658875},{"id":"https://openalex.org/keywords/iterative-reconstruction","display_name":"Iterative reconstruction","score":0.49677449464797974},{"id":"https://openalex.org/keywords/inverse-problem","display_name":"Inverse problem","score":0.49425411224365234},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4836312532424927},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.4554855227470398},{"id":"https://openalex.org/keywords/tomography","display_name":"Tomography","score":0.4390036165714264},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.4232543110847473},{"id":"https://openalex.org/keywords/domain","display_name":"Domain (mathematical analysis)","score":0.4215680956840515},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4024161994457245},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3111240863800049}],"concepts":[{"id":"https://openalex.org/C2781067378","wikidata":"https://www.wikidata.org/wiki/Q17027399","display_name":"Interpretability","level":2,"score":0.8361705541610718},{"id":"https://openalex.org/C2776135515","wikidata":"https://www.wikidata.org/wiki/Q17143721","display_name":"Regularization (linguistics)","level":2,"score":0.682655930519104},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.617716908454895},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.516232967376709},{"id":"https://openalex.org/C70710897","wikidata":"https://www.wikidata.org/wiki/Q680081","display_name":"Separable space","level":2,"score":0.5126230120658875},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.49677449464797974},{"id":"https://openalex.org/C135252773","wikidata":"https://www.wikidata.org/wiki/Q1567213","display_name":"Inverse problem","level":2,"score":0.49425411224365234},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4836312532424927},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.4554855227470398},{"id":"https://openalex.org/C163716698","wikidata":"https://www.wikidata.org/wiki/Q841267","display_name":"Tomography","level":2,"score":0.4390036165714264},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.4232543110847473},{"id":"https://openalex.org/C36503486","wikidata":"https://www.wikidata.org/wiki/Q11235244","display_name":"Domain (mathematical analysis)","level":2,"score":0.4215680956840515},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4024161994457245},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3111240863800049},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp49357.2023.10095791","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp49357.2023.10095791","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W1514141334","https://openalex.org/W1522301498","https://openalex.org/W1592958377","https://openalex.org/W1959070854","https://openalex.org/W1970948570","https://openalex.org/W1988962497","https://openalex.org/W2008257035","https://openalex.org/W2031561757","https://openalex.org/W2080600514","https://openalex.org/W2134284974","https://openalex.org/W2147280611","https://openalex.org/W2256528632","https://openalex.org/W2259686184","https://openalex.org/W2311405503","https://openalex.org/W2887788841","https://openalex.org/W2893042742","https://openalex.org/W2916033043","https://openalex.org/W2978116349","https://openalex.org/W2981500735","https://openalex.org/W3030577207","https://openalex.org/W3139209939","https://openalex.org/W3163954017","https://openalex.org/W3164975492","https://openalex.org/W3199917751","https://openalex.org/W4285032333","https://openalex.org/W4312445951"],"related_works":["https://openalex.org/W1829060647","https://openalex.org/W1965977581","https://openalex.org/W2061980133","https://openalex.org/W2077506191","https://openalex.org/W2387685679","https://openalex.org/W2050855072","https://openalex.org/W4298004047","https://openalex.org/W3134728064","https://openalex.org/W2374214022","https://openalex.org/W2347781941"],"abstract_inverted_index":{"Dynamic":[0],"tomography":[1],"is":[2,19,39],"an":[3,46],"ill-posed":[4],"inverse":[5],"problem":[6],"where":[7],"the":[8,12,22,85,88],"object":[9,23,81],"evolves":[10],"during":[11],"sequential":[13],"acquisition":[14],"of":[15,37,87],"projections.":[16],"The":[17],"goal":[18],"to":[20],"reconstruct":[21],"for":[24,67],"each":[25],"time":[26],"instant.":[27],"However,":[28],"performing":[29],"a":[30,51,56,62],"direct":[31],"reconstruction":[32],"using":[33,50],"this":[34,42],"inconsistent":[35],"set":[36],"projections":[38],"impossible.":[40],"In":[41],"paper,":[43],"we":[44],"propose":[45],"object-domain":[47],"recovery":[48],"algorithm":[49,90],"variational":[52],"formulation":[53],"that":[54],"combines":[55],"partially":[57],"separable":[58],"spatio-temporal":[59],"prior":[60],"with":[61],"basic":[63],"total-variation":[64],"spatial":[65],"regularization":[66],"improved":[68],"performance,":[69],"while":[70],"preserving":[71],"full":[72],"interpretability.":[73],"Numerical":[74],"experiments":[75],"on":[76],"data":[77,83],"derived":[78],"from":[79],"real":[80],"CT":[82],"demonstrate":[84],"advantages":[86],"proposed":[89],"over":[91],"recent":[92],"projection-domain":[93],"and":[94],"deep-prior-based":[95],"methods.":[96]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}