{"id":"https://openalex.org/W2058924225","doi":"https://doi.org/10.1145/1579114.1579178","title":"Hybrid tracking approach for assistive environments","display_name":"Hybrid tracking approach for assistive environments","publication_year":2009,"publication_date":"2009-06-09","ids":{"openalex":"https://openalex.org/W2058924225","doi":"https://doi.org/10.1145/1579114.1579178","mag":"2058924225"},"language":"en","primary_location":{"id":"doi:10.1145/1579114.1579178","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1579114.1579178","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd International Conference on PErvasive Technologies Related to Assistive Environments","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://doi.org/10.1145/1579114.1579178","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5038901103","display_name":"Constantinos Lalos","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"Constantinos Lalos","raw_affiliation_strings":["National Technical University of Athens","National Technical University Of Athens"],"affiliations":[{"raw_affiliation_string":"National Technical University of Athens","institution_ids":["https://openalex.org/I174458059"]},{"raw_affiliation_string":"National Technical University Of Athens","institution_ids":["https://openalex.org/I174458059"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112291333","display_name":"Vasilios Anagnostopoulos","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Vasilios Anagnostopoulos","raw_affiliation_strings":["National Technical University of Athens","National Technical University Of Athens"],"affiliations":[{"raw_affiliation_string":"National Technical University of Athens","institution_ids":["https://openalex.org/I174458059"]},{"raw_affiliation_string":"National Technical University Of Athens","institution_ids":["https://openalex.org/I174458059"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111985850","display_name":"Kleopatra Konstanteli","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Kleopatra Konstanteli","raw_affiliation_strings":["National Technical University of Athens","National Technical University Of Athens"],"affiliations":[{"raw_affiliation_string":"National Technical University of Athens","institution_ids":["https://openalex.org/I174458059"]},{"raw_affiliation_string":"National Technical University Of Athens","institution_ids":["https://openalex.org/I174458059"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5089215627","display_name":"Theodora Varvarigou","orcid":null},"institutions":[{"id":"https://openalex.org/I174458059","display_name":"National Technical University of Athens","ror":"https://ror.org/03cx6bg69","country_code":"GR","type":"education","lineage":["https://openalex.org/I174458059"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Theodora Varvarigou","raw_affiliation_strings":["National Technical University of Athens","National Technical University Of Athens"],"affiliations":[{"raw_affiliation_string":"National Technical University of Athens","institution_ids":["https://openalex.org/I174458059"]},{"raw_affiliation_string":"National Technical University Of Athens","institution_ids":["https://openalex.org/I174458059"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5038901103"],"corresponding_institution_ids":["https://openalex.org/I174458059"],"apc_list":null,"apc_paid":null,"fwci":0.3276,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.59536843,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"9"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11019","display_name":"Image Enhancement Techniques","score":0.9955999851226807,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9939000010490417,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7384355664253235},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.7365694046020508},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.7345329523086548},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.7177180051803589},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.6834458708763123},{"id":"https://openalex.org/keywords/histogram","display_name":"Histogram","score":0.6795734167098999},{"id":"https://openalex.org/keywords/particle-filter","display_name":"Particle filter","score":0.6601845622062683},{"id":"https://openalex.org/keywords/enhanced-data-rates-for-gsm-evolution","display_name":"Enhanced Data Rates for GSM Evolution","score":0.6459150910377502},{"id":"https://openalex.org/keywords/histogram-of-oriented-gradients","display_name":"Histogram of oriented gradients","score":0.5495181083679199},{"id":"https://openalex.org/keywords/eye-tracking","display_name":"Eye tracking","score":0.4921707510948181},{"id":"https://openalex.org/keywords/tracking-system","display_name":"Tracking system","score":0.4359113872051239},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.4000437259674072},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.2453436255455017}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7384355664253235},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.7365694046020508},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.7345329523086548},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7177180051803589},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.6834458708763123},{"id":"https://openalex.org/C53533937","wikidata":"https://www.wikidata.org/wiki/Q185020","display_name":"Histogram","level":3,"score":0.6795734167098999},{"id":"https://openalex.org/C52421305","wikidata":"https://www.wikidata.org/wiki/Q1151499","display_name":"Particle filter","level":3,"score":0.6601845622062683},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.6459150910377502},{"id":"https://openalex.org/C17426736","wikidata":"https://www.wikidata.org/wiki/Q419918","display_name":"Histogram of oriented gradients","level":4,"score":0.5495181083679199},{"id":"https://openalex.org/C56461940","wikidata":"https://www.wikidata.org/wiki/Q970687","display_name":"Eye tracking","level":2,"score":0.4921707510948181},{"id":"https://openalex.org/C154586513","wikidata":"https://www.wikidata.org/wiki/Q4420972","display_name":"Tracking system","level":3,"score":0.4359113872051239},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.4000437259674072},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.2453436255455017},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/1579114.1579178","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1579114.1579178","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd International Conference on PErvasive Technologies Related to Assistive Environments","raw_type":"proceedings-article"},{"id":"pmh:oai:dspace.lib.ntua.gr:123456789/35717","is_oa":true,"landing_page_url":"http://doi.org/10.1145/1579114.1579178","pdf_url":null,"source":{"id":"https://openalex.org/S4377196837","display_name":"DSpace - NTUA (National Technical University of Athens)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I174458059","host_organization_name":"National Technical University of Athens","host_organization_lineage":["https://openalex.org/I174458059"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"International Conference on Pervasive Technologies Related to Assistive Environments","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":{"id":"pmh:oai:dspace.lib.ntua.gr:123456789/35717","is_oa":true,"landing_page_url":"http://doi.org/10.1145/1579114.1579178","pdf_url":null,"source":{"id":"https://openalex.org/S4377196837","display_name":"DSpace - NTUA (National Technical University of Athens)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I174458059","host_organization_name":"National Technical University of Athens","host_organization_lineage":["https://openalex.org/I174458059"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"International Conference on Pervasive Technologies Related to Assistive Environments","raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4769193623","display_name":null,"funder_award_id":"[216465] - [SCOVIS]","funder_id":"https://openalex.org/F4320334960","funder_display_name":"Seventh Framework Programme"}],"funders":[{"id":"https://openalex.org/F4320334960","display_name":"Seventh Framework Programme","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W1509559802","https://openalex.org/W1513768190","https://openalex.org/W1677409904","https://openalex.org/W1991965723","https://openalex.org/W2060451775","https://openalex.org/W2085669808","https://openalex.org/W2096260304","https://openalex.org/W2124386111","https://openalex.org/W2125027820","https://openalex.org/W2126191032","https://openalex.org/W2134875050","https://openalex.org/W2140553492","https://openalex.org/W2141953624","https://openalex.org/W2147953023","https://openalex.org/W2161969291","https://openalex.org/W2163482106","https://openalex.org/W2538958577","https://openalex.org/W4230423252","https://openalex.org/W4319068731"],"related_works":["https://openalex.org/W2071599417","https://openalex.org/W2048716406","https://openalex.org/W1870444468","https://openalex.org/W2979608518","https://openalex.org/W1964725559","https://openalex.org/W3109748140","https://openalex.org/W2045053268","https://openalex.org/W2767833206","https://openalex.org/W2433492094","https://openalex.org/W1556327589"],"abstract_inverted_index":{"Camera":[0],"based":[1],"supervision":[2],"is":[3,74,117],"a":[4,43,103],"critical":[5],"component":[6],"for":[7,92,131],"patient":[8,132],"monitoring":[9],"in":[10,23,64],"assistive":[11],"environments.":[12],"However,":[13],"visual":[14],"tracking":[15,55,70,84],"still":[16],"remains":[17],"one":[18],"of":[19,97],"the":[20,24,35,68,87,93,111,114],"biggest":[21],"challenges":[22],"area":[25],"computer":[26],"vision":[27],"although":[28],"it":[29],"has":[30],"been":[31],"extensively":[32],"studied":[33],"during":[34],"previous":[36],"decades.":[37],"It":[38],"this":[39],"paper":[40],"we":[41],"propose":[42],"hybrid":[44],"Rao":[45],"--":[46],"Blackwellzed":[47],"particle":[48],"filter":[49],"that":[50,110],"combines":[51],"two":[52],"efficient,":[53],"well-known":[54],"techniques":[56],"with":[57,76],"an":[58,128],"innovative":[59],"color":[60,77],"observation":[61],"representation":[62,73,80,95],"method":[63],"order":[65],"to":[66,81],"improve":[67],"overall":[69],"performance.":[71],"This":[72],"combined":[75],"and":[78,122],"edge":[79,89,94],"obtain":[82],"improved":[83],"efficiency.":[85],"Furthermore,":[86],"global":[88],"description":[90],"template":[91],"(histogram":[96],"oriented":[98],"gradients)":[99],"was":[100],"obtained":[101],"using":[102],"machine":[104],"learning":[105],"technique.":[106],"Initial":[107],"experiments":[108],"show":[109],"principle":[112],"behind":[113],"proposed":[115],"algorithm":[116],"sound,":[118],"yielding":[119],"good":[120],"results":[121],"thus":[123],"allowing":[124],"its":[125],"adoption":[126],"as":[127],"initial":[129],"stage":[130],"behavior":[133],"recognition.":[134]},"counts_by_year":[{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-03-25T13:04:00.132906","created_date":"2025-10-10T00:00:00"}