{"id":"https://openalex.org/W2902042826","doi":"https://doi.org/10.1145/3229345.3229383","title":"Comparative study of subspace-based techniques in the task of partially occluded reconstruction of faces","display_name":"Comparative study of subspace-based techniques in the task of partially occluded reconstruction of faces","publication_year":2018,"publication_date":"2018-06-04","ids":{"openalex":"https://openalex.org/W2902042826","doi":"https://doi.org/10.1145/3229345.3229383","mag":"2902042826"},"language":"en","primary_location":{"id":"doi:10.1145/3229345.3229383","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3229345.3229383","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the XIV Brazilian Symposium on Information Systems","raw_type":"proceedings-article"},"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/A5002660341","display_name":"Jonas Mendon\u00e7a Targino","orcid":null},"institutions":[{"id":"https://openalex.org/I17974374","display_name":"Universidade de S\u00e3o Paulo","ror":"https://ror.org/036rp1748","country_code":"BR","type":"education","lineage":["https://openalex.org/I17974374"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Jonas Mendon\u00e7a Targino","raw_affiliation_strings":["Universidade de S\u00e3o Paulo, S\u00e3o Paulo, S\u00e3o Paulo"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universidade de S\u00e3o Paulo, S\u00e3o Paulo, S\u00e3o Paulo","institution_ids":["https://openalex.org/I17974374"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056299555","display_name":"Sarajane Marques Peres","orcid":"https://orcid.org/0000-0003-3551-6480"},"institutions":[{"id":"https://openalex.org/I17974374","display_name":"Universidade de S\u00e3o Paulo","ror":"https://ror.org/036rp1748","country_code":"BR","type":"education","lineage":["https://openalex.org/I17974374"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Sarajane Marques Peres","raw_affiliation_strings":["Universidade de S\u00e3o Paulo, S\u00e3o Paulo, S\u00e3o Paulo"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universidade de S\u00e3o Paulo, S\u00e3o Paulo, S\u00e3o Paulo","institution_ids":["https://openalex.org/I17974374"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5030763025","display_name":"Clodoaldo A. M. Lima","orcid":"https://orcid.org/0000-0003-3381-5348"},"institutions":[{"id":"https://openalex.org/I17974374","display_name":"Universidade de S\u00e3o Paulo","ror":"https://ror.org/036rp1748","country_code":"BR","type":"education","lineage":["https://openalex.org/I17974374"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Clodoaldo A. M. Lima","raw_affiliation_strings":["Universidade de S\u00e3o Paulo, S\u00e3o Paulo, S\u00e3o Paulo"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universidade de S\u00e3o Paulo, S\u00e3o Paulo, S\u00e3o Paulo","institution_ids":["https://openalex.org/I17974374"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I17974374"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"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/T10057","display_name":"Face and Expression Recognition","score":0.9991000294685364,"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/T10057","display_name":"Face and Expression Recognition","score":0.9991000294685364,"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/T12676","display_name":"Machine Learning and ELM","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T11448","display_name":"Face recognition and analysis","score":0.9927999973297119,"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/subspace-topology","display_name":"Subspace topology","score":0.7576390504837036},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.7230525016784668},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7223556637763977},{"id":"https://openalex.org/keywords/facial-recognition-system","display_name":"Facial recognition system","score":0.6738121509552002},{"id":"https://openalex.org/keywords/classifier","display_name":"Classifier (UML)","score":0.6128673553466797},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.6026241779327393},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.46517038345336914},{"id":"https://openalex.org/keywords/face","display_name":"Face (sociological concept)","score":0.44038301706314087}],"concepts":[{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.7576390504837036},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7230525016784668},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7223556637763977},{"id":"https://openalex.org/C31510193","wikidata":"https://www.wikidata.org/wiki/Q1192553","display_name":"Facial recognition system","level":3,"score":0.6738121509552002},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.6128673553466797},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.6026241779327393},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.46517038345336914},{"id":"https://openalex.org/C2779304628","wikidata":"https://www.wikidata.org/wiki/Q3503480","display_name":"Face (sociological concept)","level":2,"score":0.44038301706314087},{"id":"https://openalex.org/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social science","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3229345.3229383","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3229345.3229383","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the XIV Brazilian Symposium on Information Systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W1506411135","https://openalex.org/W2000768378","https://openalex.org/W2001619934","https://openalex.org/W2059829876","https://openalex.org/W2083332259","https://openalex.org/W2096987757","https://openalex.org/W2098693229","https://openalex.org/W2106765745","https://openalex.org/W2111072639","https://openalex.org/W2121647436","https://openalex.org/W2132984323","https://openalex.org/W2133665775","https://openalex.org/W2136860609","https://openalex.org/W2143963455","https://openalex.org/W2145526234","https://openalex.org/W2151190260","https://openalex.org/W2170629531","https://openalex.org/W2510850889","https://openalex.org/W2545755311","https://openalex.org/W2588229650","https://openalex.org/W2944456345","https://openalex.org/W2994340921","https://openalex.org/W3097096317","https://openalex.org/W3203006154"],"related_works":["https://openalex.org/W1980381208","https://openalex.org/W2364594919","https://openalex.org/W200201533","https://openalex.org/W4171918","https://openalex.org/W4253219045","https://openalex.org/W2347824352","https://openalex.org/W2098693229","https://openalex.org/W2049864679","https://openalex.org/W2112875849","https://openalex.org/W2384651879"],"abstract_inverted_index":{"Facial":[0],"recognition":[1,31,47,166],"systems":[2],"in":[3,35,66,163],"controlled":[4],"environments":[5],"have":[6],"presented":[7],"satisfactory":[8],"identification":[9],"results.":[10],"However,":[11,87],"we":[12,148],"can":[13,149],"not":[14],"make":[15],"the":[16,20,57,67,70,83,93,108,120,130,146,152,171],"same":[17],"assertion":[18],"when":[19],"collection":[21],"environment":[22],"is":[23,62,89,105],"uncontrolled.":[24],"The":[25,100],"factors":[26],"responsible":[27],"for":[28],"these":[29],"low":[30],"rates":[32],"are":[33,73],"variations":[34,44],"illumination,":[36],"pose,":[37,53],"expression":[38],"and":[39,45,55,95,115,122,157],"occlusion,":[40],"which":[41],"introduce":[42],"intraclass":[43],"degrade":[46],"performance.":[48],"Compared":[49],"with":[50,79,116,170],"problems":[51],"of":[52,97,102,124,139,141,165],"illumination":[54],"expression,":[56],"problem":[58],"related":[59],"to":[60,81,106,118,135,145],"occlusion":[61],"relatively":[63],"little":[64],"studied":[65],"area.":[68],"In":[69,127],"literature":[71],"there":[72,88],"some":[74],"techniques":[75,111],"based":[76,112],"on":[77,113],"subspace":[78],"initiatives":[80],"reconstruct":[82],"partly":[84],"occluded":[85],"face.":[86],"no":[90],"study":[91],"showing":[92],"pros":[94,121],"cons":[96,123],"each":[98,125],"variation.":[99],"objective":[101],"this":[103,117,128],"work":[104],"investigate":[107],"different":[109],"existing":[110],"subspace,":[114],"present":[119],"technique.":[126],"paper,":[129],"Wavelet":[131],"transform":[132],"was":[133],"used":[134],"extract":[136],"a":[137],"set":[138],"characteristics":[140],"face":[142],"images.":[143],"According":[144],"results":[147],"see":[150],"that":[151],"Fast":[153],"Recursive":[154,156],"PCA,":[155],"GPCA":[158],"strategies":[159],"achieved":[160],"better":[161],"performance,":[162],"terms":[164],"rate,":[167],"after":[168],"evaluation":[169],"Extreme":[172],"Learning":[173],"Machine":[174],"classifier.":[175]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
