{"id":"https://openalex.org/W2000523219","doi":"https://doi.org/10.1117/12.365727","title":"Multiply constrained cardiac electrical imaging methods","display_name":"Multiply constrained cardiac electrical imaging methods","publication_year":1999,"publication_date":"1999-10-15","ids":{"openalex":"https://openalex.org/W2000523219","doi":"https://doi.org/10.1117/12.365727","mag":"2000523219"},"language":"en","primary_location":{"id":"doi:10.1117/12.365727","doi":"https://doi.org/10.1117/12.365727","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.365727","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","norway-1"],"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","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/A5079980080","display_name":"Dana H. Brooks","orcid":"https://orcid.org/0000-0003-3231-6715","observed_orcids":["https://orcid.org/0000-0003-3231-6715"]},"institutions":[{"id":"https://openalex.org/I12912129","display_name":"Northeastern University","ror":"https://ror.org/04t5xt781","country_code":"US","type":"education","lineage":["https://openalex.org/I12912129"]},{"id":"https://openalex.org/I223532165","display_name":"University of Utah","ror":"https://ror.org/03r0ha626","country_code":"US","type":"education","lineage":["https://openalex.org/I223532165"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dana H. Brooks","raw_affiliation_strings":["Northeastern Univ. and Univ. of Utah (United States)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Northeastern Univ. and Univ. of Utah (United States)","institution_ids":["https://openalex.org/I12912129","https://openalex.org/I223532165"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113867104","display_name":"K.G. Srinidhi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I12912129","display_name":"Northeastern University","ror":"https://ror.org/04t5xt781","country_code":"US","type":"education","lineage":["https://openalex.org/I12912129"]},{"id":"https://openalex.org/I223532165","display_name":"University of Utah","ror":"https://ror.org/03r0ha626","country_code":"US","type":"education","lineage":["https://openalex.org/I223532165"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kadagattur G. Srinidhi","raw_affiliation_strings":["Northeastern Univ. and Univ. of Utah (United States)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Northeastern Univ. and Univ. of Utah (United States)","institution_ids":["https://openalex.org/I12912129","https://openalex.org/I223532165"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023536951","display_name":"Rob MacLeod","orcid":"https://orcid.org/0000-0002-0000-0356","observed_orcids":["https://orcid.org/0000-0002-0000-0356"]},"institutions":[{"id":"https://openalex.org/I223532165","display_name":"University of Utah","ror":"https://ror.org/03r0ha626","country_code":"US","type":"education","lineage":["https://openalex.org/I223532165"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Robert S. MacLeod","raw_affiliation_strings":["Univ. of Utah (United States)","University of  Utah (United States)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Univ. of Utah (United States)","institution_ids":["https://openalex.org/I223532165"]},{"raw_affiliation_string":"University of  Utah (United States)","institution_ids":["https://openalex.org/I223532165"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5061128237","display_name":"David R Kaeli","orcid":"https://orcid.org/0000-0002-5692-0151","observed_orcids":["https://orcid.org/0000-0002-5692-0151"]},"institutions":[{"id":"https://openalex.org/I12912129","display_name":"Northeastern University","ror":"https://ror.org/04t5xt781","country_code":"US","type":"education","lineage":["https://openalex.org/I12912129"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"David R. Kaeli","raw_affiliation_strings":["Northeastern Univ. (United States)","Northeastern University United States"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Northeastern Univ. (United States)","institution_ids":["https://openalex.org/I12912129"]},{"raw_affiliation_string":"Northeastern University United States","institution_ids":["https://openalex.org/I12912129"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.11333333,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"3752","issue":null,"first_page":"62","last_page":"71"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11205","display_name":"Numerical methods in inverse problems","score":0.5396000146865845,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11205","display_name":"Numerical methods in inverse problems","score":0.5396000146865845,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11021","display_name":"ECG Monitoring and Analysis","score":0.36910000443458557,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"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/T11778","display_name":"Electrical and Bioimpedance Tomography","score":0.03020000085234642,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/inverse-problems","display_name":"inverse problems","score":0.43700000643730164},{"id":"https://openalex.org/keywords/multiple-constraints","display_name":"multiple constraints","score":0.7200000286102295},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"convex optimization","score":0.9449999928474426},{"id":"https://openalex.org/keywords/smoothing","display_name":"smoothing","score":0.5080000162124634},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"distributed computing","score":0.6930000185966492}],"concepts":[{"id":"https://openalex.org/C183115368","wikidata":"https://www.wikidata.org/wiki/Q856577","display_name":"Weighting","level":2,"score":0.62227463722229},{"id":"https://openalex.org/C3770464","wikidata":"https://www.wikidata.org/wiki/Q775963","display_name":"Smoothing","level":2,"score":0.6184114217758179},{"id":"https://openalex.org/C2778112365","wikidata":"https://www.wikidata.org/wiki/Q3511065","display_name":"Sequence (biology)","level":2,"score":0.603577733039856},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5833436250686646},{"id":"https://openalex.org/C3020541326","wikidata":"https://www.wikidata.org/wiki/Q1796666","display_name":"Body surface","level":2,"score":0.5180625915527344},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.499495267868042},{"id":"https://openalex.org/C34800285","wikidata":"https://www.wikidata.org/wiki/Q5159395","display_name":"Conductor","level":2,"score":0.4850005805492401},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.4844801127910614},{"id":"https://openalex.org/C20556612","wikidata":"https://www.wikidata.org/wiki/Q4469374","display_name":"Volume (thermodynamics)","level":2,"score":0.42884647846221924},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.42412126064300537},{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.4120728373527527},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3537028431892395},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.33862072229385376},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.21838730573654175},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.19325575232505798},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.18299031257629395},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12901046872138977},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1117/12.365727","doi":"https://doi.org/10.1117/12.365727","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.365727","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","norway-1"],"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7098441390","https://openalex.org/W2051221554","https://openalex.org/W7067802450","https://openalex.org/W7096350934","https://openalex.org/W3175798548","https://openalex.org/W38496366","https://openalex.org/W2545845100","https://openalex.org/W1965220183","https://openalex.org/W2097631275","https://openalex.org/W568183942"],"abstract_inverted_index":{"Accurate":[0],"characterization":[1],"of":[2,6,10,50,58,64,86,103,127,148,170,187],"the":[3,7,27,35,42,74,87,91,107,123,144,174],"electrical":[4,60,66],"activity":[5,24],"heart":[8],"is":[9,68,93,109],"great":[11],"physiological":[12],"and":[13,39,71,112,116,118,125,146,151],"medical":[14],"import.":[15],"The":[16,62],"only":[17],"truly":[18],"non-invasive":[19],"sites":[20],"to":[21,69,97,122,137,161,182],"measure":[22],"this":[23,79],"are":[25,37,120],"on":[26],"body":[28,51],"surface,":[29],"as":[30],"in":[31,114,173],"an":[32,48],"ECG,":[33],"but":[34],"signals":[36],"attenuated":[38],"distorted":[40],"by":[41],"thorax":[43],"volume":[44,88],"conductor.":[45,89],"Thus":[46],"even":[47],"array":[49],"surface":[52],"electrodes":[53],"records":[54],"a":[55,84,157],"remote":[56],"observation":[57],"cardiac":[59,65],"activity.":[61],"goal":[63],"imaging":[67],"accurately":[70],"reliably":[72],"reconstruct":[73],"source":[75,104,108],"image":[76,81,176],"sequence":[77,82],"from":[78],"observed":[80],"using":[83,100],"model":[85],"Since":[90],"problem":[92,145],"ill-posed,":[94],"we":[95],"need":[96],"constrain":[98],"solutions":[99],"prior":[101],"knowledge":[102],"characteristics.":[105],"Because":[106],"quite":[110],"complex":[111],"distributed":[113,184],"time":[115],"space,":[117],"reconstructions":[119],"sensitive":[121],"choice":[124],"weighting":[126],"constraints,":[128,164],"several":[129],"groups,":[130],"including":[131],"ours,":[132],"have":[133],"recently":[134],"introduced":[135],"methods":[136,150],"impose":[138,162],"multiple":[139,163],"constraints.":[140],"We":[141,178],"will":[142],"review":[143],"some":[147],"these":[149,188],"describe":[152],"recent":[153],"work":[154],"which":[155],"uses":[156],"convex":[158],"optimization":[159],"framework":[160],"combining":[165],"traditional":[166],"smoothing":[167],"with":[168],"preservation":[169],"sharp":[171],"gradients":[172],"reconstructed":[175],"sequences.":[177],"pay":[179],"particular":[180],"attention":[181],"efficient":[183],"computational":[185],"implementations":[186],"solution":[189],"methods.":[190]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}