{"id":"https://openalex.org/W1990830624","doi":"https://doi.org/10.1109/jbhi.2013.2252911","title":"Estimation of Body Postures on Bed Using Unconstrained ECG Measurements","display_name":"Estimation of Body Postures on Bed Using Unconstrained ECG Measurements","publication_year":2013,"publication_date":"2013-03-15","ids":{"openalex":"https://openalex.org/W1990830624","doi":"https://doi.org/10.1109/jbhi.2013.2252911","mag":"1990830624"},"language":"en","primary_location":{"id":"doi:10.1109/jbhi.2013.2252911","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jbhi.2013.2252911","pdf_url":null,"source":{"id":"https://openalex.org/S2495854775","display_name":"IEEE Journal of Biomedical and Health Informatics","issn_l":"2168-2194","issn":["2168-2194","2168-2208"],"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 Journal of Biomedical and Health Informatics","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/A5058206361","display_name":"Hong Ji Lee","orcid":"https://orcid.org/0000-0002-9096-7105"},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Hong Ji Lee","raw_affiliation_strings":["Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea","Interdiscipl. Program in Bioeng., Seoul Nat. Univ., Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea","institution_ids":["https://openalex.org/I139264467"]},{"raw_affiliation_string":"Interdiscipl. Program in Bioeng., Seoul Nat. Univ., Seoul, South Korea","institution_ids":["https://openalex.org/I139264467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100860740","display_name":"Su Hwan Hwang","orcid":null},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Su Hwan Hwang","raw_affiliation_strings":["Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea","Interdiscipl. Program in Bioeng., Seoul Nat. Univ., Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea","institution_ids":["https://openalex.org/I139264467"]},{"raw_affiliation_string":"Interdiscipl. Program in Bioeng., Seoul Nat. Univ., Seoul, South Korea","institution_ids":["https://openalex.org/I139264467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100437558","display_name":"Seung Min Lee","orcid":"https://orcid.org/0009-0007-4279-7563"},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Seung Min Lee","raw_affiliation_strings":["Department of Biomedical Engineering, Korea University, Seoul, Korea","Dept. of Biomed. Eng., Korea Univ., Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Korea University, Seoul, Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Dept. of Biomed. Eng., Korea Univ., Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111528657","display_name":"Yong Gyu Lim","orcid":null},"institutions":[{"id":"https://openalex.org/I9507","display_name":"Sangji University","ror":"https://ror.org/01gqe3t73","country_code":"KR","type":"education","lineage":["https://openalex.org/I9507"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Yong Gyu Lim","raw_affiliation_strings":["Department of Oriental Biomedical Engineering, Sangji University, Wonju, Korea","Dept. of Oriental Biomed. Eng., Sangji Univ., Wonju, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Oriental Biomedical Engineering, Sangji University, Wonju, Korea","institution_ids":["https://openalex.org/I9507"]},{"raw_affiliation_string":"Dept. of Oriental Biomed. Eng., Sangji Univ., Wonju, South Korea","institution_ids":["https://openalex.org/I9507"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101416074","display_name":"Kwang Suk Park","orcid":"https://orcid.org/0000-0001-8725-2996"},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Kwang Suk Park","raw_affiliation_strings":["Department of Biomedical Engineering, Seoul National University, Seoul, Korea","Dept. of Biomed. Eng., Seoul Nat. Univ., Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Biomedical Engineering, Seoul National University, Seoul, Korea","institution_ids":["https://openalex.org/I139264467"]},{"raw_affiliation_string":"Dept. of Biomed. Eng., Seoul Nat. Univ., Seoul, South Korea","institution_ids":["https://openalex.org/I139264467"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5058206361"],"corresponding_institution_ids":["https://openalex.org/I139264467"],"apc_list":null,"apc_paid":null,"fwci":1.8927,"has_fulltext":false,"cited_by_count":63,"citation_normalized_percentile":{"value":0.84848036,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"17","issue":"6","first_page":"985","last_page":"993"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10234","display_name":"Obstructive Sleep Apnea Research","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"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/T10234","display_name":"Obstructive Sleep Apnea Research","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"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/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9973000288009644,"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/T11670","display_name":"Pressure Ulcer Prevention and Management","score":0.9778000116348267,"subfield":{"id":"https://openalex.org/subfields/3609","display_name":"Occupational Therapy"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/supine-position","display_name":"Supine position","score":0.6509658098220825},{"id":"https://openalex.org/keywords/support-vector-machine","display_name":"Support vector machine","score":0.6488347053527832},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.6465275287628174},{"id":"https://openalex.org/keywords/radial-basis-function","display_name":"Radial basis function","score":0.6373240351676941},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6279728412628174},{"id":"https://openalex.org/keywords/qrs-complex","display_name":"QRS complex","score":0.6091248393058777},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6031103134155273},{"id":"https://openalex.org/keywords/linear-discriminant-analysis","display_name":"Linear discriminant analysis","score":0.5508376359939575},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.44454360008239746},{"id":"https://openalex.org/keywords/kernel","display_name":"Kernel (algebra)","score":0.4416748881340027},{"id":"https://openalex.org/keywords/electrocardiography","display_name":"Electrocardiography","score":0.4285563826560974},{"id":"https://openalex.org/keywords/radial-basis-function-kernel","display_name":"Radial basis function kernel","score":0.4112863540649414},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2451932430267334},{"id":"https://openalex.org/keywords/kernel-method","display_name":"Kernel method","score":0.17173394560813904},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.1465674340724945},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.10979017615318298}],"concepts":[{"id":"https://openalex.org/C125567185","wikidata":"https://www.wikidata.org/wiki/Q3267428","display_name":"Supine position","level":2,"score":0.6509658098220825},{"id":"https://openalex.org/C12267149","wikidata":"https://www.wikidata.org/wiki/Q282453","display_name":"Support vector machine","level":2,"score":0.6488347053527832},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.6465275287628174},{"id":"https://openalex.org/C98856871","wikidata":"https://www.wikidata.org/wiki/Q1588488","display_name":"Radial basis function","level":3,"score":0.6373240351676941},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6279728412628174},{"id":"https://openalex.org/C111773187","wikidata":"https://www.wikidata.org/wiki/Q1969239","display_name":"QRS complex","level":2,"score":0.6091248393058777},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6031103134155273},{"id":"https://openalex.org/C69738355","wikidata":"https://www.wikidata.org/wiki/Q1228929","display_name":"Linear discriminant analysis","level":2,"score":0.5508376359939575},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.44454360008239746},{"id":"https://openalex.org/C74193536","wikidata":"https://www.wikidata.org/wiki/Q574844","display_name":"Kernel (algebra)","level":2,"score":0.4416748881340027},{"id":"https://openalex.org/C2780040984","wikidata":"https://www.wikidata.org/wiki/Q79785","display_name":"Electrocardiography","level":2,"score":0.4285563826560974},{"id":"https://openalex.org/C75866337","wikidata":"https://www.wikidata.org/wiki/Q7280263","display_name":"Radial basis function kernel","level":4,"score":0.4112863540649414},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2451932430267334},{"id":"https://openalex.org/C122280245","wikidata":"https://www.wikidata.org/wiki/Q620622","display_name":"Kernel method","level":3,"score":0.17173394560813904},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.1465674340724945},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.10979017615318298},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jbhi.2013.2252911","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jbhi.2013.2252911","pdf_url":null,"source":{"id":"https://openalex.org/S2495854775","display_name":"IEEE Journal of Biomedical and Health Informatics","issn_l":"2168-2194","issn":["2168-2194","2168-2208"],"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 Journal of Biomedical and Health Informatics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6700000166893005,"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W13034104","https://openalex.org/W34995534","https://openalex.org/W78169632","https://openalex.org/W153202425","https://openalex.org/W187354527","https://openalex.org/W275101382","https://openalex.org/W1444168786","https://openalex.org/W1510073064","https://openalex.org/W1591300912","https://openalex.org/W1726343988","https://openalex.org/W1964251291","https://openalex.org/W1980611439","https://openalex.org/W2007977032","https://openalex.org/W2009948616","https://openalex.org/W2022839057","https://openalex.org/W2032623985","https://openalex.org/W2057105676","https://openalex.org/W2098818578","https://openalex.org/W2123018963","https://openalex.org/W2124222146","https://openalex.org/W2128870545","https://openalex.org/W2134625614","https://openalex.org/W2135265329","https://openalex.org/W2135373070","https://openalex.org/W2136177393","https://openalex.org/W2141479968","https://openalex.org/W2145690471","https://openalex.org/W2153508560","https://openalex.org/W2155758218","https://openalex.org/W2158861971","https://openalex.org/W2169520787","https://openalex.org/W4241210978","https://openalex.org/W4244494905","https://openalex.org/W6606231803","https://openalex.org/W6628505203","https://openalex.org/W6658658918","https://openalex.org/W6679782290","https://openalex.org/W6680516402"],"related_works":["https://openalex.org/W3001160440","https://openalex.org/W2334516142","https://openalex.org/W3200205987","https://openalex.org/W2019243908","https://openalex.org/W2805008028","https://openalex.org/W2152497556","https://openalex.org/W4391218126","https://openalex.org/W1966223876","https://openalex.org/W161633293","https://openalex.org/W3023565984"],"abstract_inverted_index":{"We":[0],"developed":[1,161],"and":[2,25,67,90,96,101,131,163,173],"tested":[3],"a":[4,11,26],"system":[5,162],"for":[6,118,187],"estimating":[7],"body":[8,45,122,184],"postures":[9,123],"on":[10,54,124],"bed":[12],"using":[13,20,73],"unconstrained":[14,145],"measurements":[15],"of":[16,57,60,70,116,120,175,190],"electrocardiogram":[17],"(ECG)":[18],"signals":[19],"12":[21,48],"capacitively":[22],"coupled":[23],"electrodes":[24],"conductive":[27],"textile":[28],"sheet.":[29],"Thirteen":[30],"healthy":[31],"subjects":[32],"participated":[33],"in":[34,41,143],"the":[35,39,44,47,50,55,58,61,110,125,147,152,169,188],"experiment.":[36],"After":[37],"detecting":[38],"channels":[40],"contact":[42],"with":[43,88,106,113],"among":[46],"electrodes,":[49],"features":[51,78],"were":[52,79,138],"extracted":[53],"basis":[56,92],"morphology":[59],"QRS":[62],"(Q":[63],"wave,":[64,66],"R":[65],"S":[68],"wave":[69],"ECG)":[71],"complex":[72],"three":[74],"main":[75],"steps.":[76],"The":[77,160],"applied":[80,167],"to":[81,158,168],"linear":[82,89],"discriminant":[83],"analysis,":[84],"support":[85],"vector":[86],"machines":[87],"radial":[91],"function":[93],"(RBF)":[94],"kernels,":[95],"artificial":[97],"neural":[98],"networks":[99],"(one":[100],"two":[102],"layers),":[103],"respectively.":[104],"SVM":[105],"RBF":[107],"kernel":[108],"had":[109],"highest":[111],"performance":[112,148],"an":[114,144],"accuracy":[115],"98.4%":[117],"estimation":[119],"four":[121],"bed:":[126],"supine,":[127],"right":[128],"lateral,":[129],"prone,":[130],"left":[132],"lateral.":[133],"Overall,":[134],"although":[135],"ECG":[136],"data":[137],"obtained":[139],"from":[140],"few":[141],"sensors":[142],"manner,":[146],"was":[149],"better":[150],"than":[151],"results":[153],"that":[154],"have":[155],"been":[156],"reported":[157],"date.":[159],"algorithm":[164],"can":[165],"be":[166],"obstructive":[170],"apnea":[171],"detection":[172,186],"analyses":[174],"sleep":[176,179],"quality":[177],"or":[178],"stages,":[180],"as":[181,183],"well":[182],"posture":[185],"management":[189],"bedsores.":[191]},"counts_by_year":[{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":11},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":10},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2016-06-24T00:00:00"}