{"id":"https://openalex.org/W2161938134","doi":"https://doi.org/10.1109/cvpr.2012.6247679","title":"On the dimensionality of video bricks under varying illumination","display_name":"On the dimensionality of video bricks under varying illumination","publication_year":2012,"publication_date":"2012-06-01","ids":{"openalex":"https://openalex.org/W2161938134","doi":"https://doi.org/10.1109/cvpr.2012.6247679","mag":"2161938134"},"language":"en","primary_location":{"id":"doi:10.1109/cvpr.2012.6247679","is_oa":false,"landing_page_url":"https://doi.org/10.1109/cvpr.2012.6247679","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE Conference on Computer Vision and Pattern Recognition","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/A5100899001","display_name":"Youdong Zhao","orcid":null},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Youdong Zhao","raw_affiliation_strings":["Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008520713","display_name":"Xi Song","orcid":"https://orcid.org/0000-0001-6697-8640"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xi Song","raw_affiliation_strings":["Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100731042","display_name":"Yunde Jia","orcid":"https://orcid.org/0000-0003-1900-8945"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yunde Jia","raw_affiliation_strings":["Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5100899001"],"corresponding_institution_ids":["https://openalex.org/I125839683"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.18170947,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"222","last_page":"229"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9997000098228455,"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":0.9997000098228455,"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":0.9940000176429749,"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/T10531","display_name":"Advanced Vision and Imaging","score":0.9919000267982483,"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/curse-of-dimensionality","display_name":"Curse of dimensionality","score":0.7269113063812256},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6867913603782654},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6853336095809937},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6749665141105652},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.6735119819641113},{"id":"https://openalex.org/keywords/principal-component-analysis","display_name":"Principal component analysis","score":0.6726114749908447},{"id":"https://openalex.org/keywords/focus","display_name":"Focus (optics)","score":0.5906856060028076},{"id":"https://openalex.org/keywords/subspace-topology","display_name":"Subspace topology","score":0.588370680809021},{"id":"https://openalex.org/keywords/face","display_name":"Face (sociological concept)","score":0.547433614730835},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5442890524864197},{"id":"https://openalex.org/keywords/motion","display_name":"Motion (physics)","score":0.45399507880210876},{"id":"https://openalex.org/keywords/object-detection","display_name":"Object detection","score":0.4457656145095825},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3003149926662445},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.07420334219932556}],"concepts":[{"id":"https://openalex.org/C111030470","wikidata":"https://www.wikidata.org/wiki/Q1430460","display_name":"Curse of dimensionality","level":2,"score":0.7269113063812256},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6867913603782654},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6853336095809937},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6749665141105652},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.6735119819641113},{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.6726114749908447},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.5906856060028076},{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.588370680809021},{"id":"https://openalex.org/C2779304628","wikidata":"https://www.wikidata.org/wiki/Q3503480","display_name":"Face (sociological concept)","level":2,"score":0.547433614730835},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5442890524864197},{"id":"https://openalex.org/C104114177","wikidata":"https://www.wikidata.org/wiki/Q79782","display_name":"Motion (physics)","level":2,"score":0.45399507880210876},{"id":"https://openalex.org/C2776151529","wikidata":"https://www.wikidata.org/wiki/Q3045304","display_name":"Object detection","level":3,"score":0.4457656145095825},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3003149926662445},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.07420334219932556},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0},{"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/cvpr.2012.6247679","is_oa":false,"landing_page_url":"https://doi.org/10.1109/cvpr.2012.6247679","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE Conference on Computer Vision and Pattern Recognition","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6700000166893005,"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W1506013575","https://openalex.org/W1524951208","https://openalex.org/W1595501465","https://openalex.org/W1991643529","https://openalex.org/W2020163092","https://openalex.org/W2098305432","https://openalex.org/W2111918405","https://openalex.org/W2113800095","https://openalex.org/W2121941242","https://openalex.org/W2123921160","https://openalex.org/W2128057924","https://openalex.org/W2134875082","https://openalex.org/W2149846926","https://openalex.org/W2154346517","https://openalex.org/W2158097970","https://openalex.org/W2165916500","https://openalex.org/W2170464076","https://openalex.org/W2293430386","https://openalex.org/W2489339293","https://openalex.org/W2533739470","https://openalex.org/W2541113228","https://openalex.org/W6631364308","https://openalex.org/W6648087400","https://openalex.org/W6722251477"],"related_works":["https://openalex.org/W1980381208","https://openalex.org/W1975632186","https://openalex.org/W4296209631","https://openalex.org/W3027745756","https://openalex.org/W3205213561","https://openalex.org/W2531880140","https://openalex.org/W2364594919","https://openalex.org/W2167092671","https://openalex.org/W2126145365","https://openalex.org/W3125756894"],"abstract_inverted_index":{"Illumination":[0],"models":[1,134],"of":[2,6,27,30,61,64,72,79,90,107,130,135],"the":[3,24,57,62,69,108,113,124,131,141],"image":[4],"set":[5],"an":[7,31,91],"object":[8,32,92],"(e.g.,":[9],"human":[10],"face)":[11],"under":[12,33,93],"varying":[13,34,94],"lighting":[14],"conditions":[15],"have":[16],"been":[17],"either":[18],"empirically":[19],"or":[20],"analytically":[21],"explored.":[22],"However,":[23],"theoretical":[25,58,125],"dimensionality":[26,63],"video":[28,65,88,119,136],"bricks":[29,66,89,137],"illumination":[35,95,150],"is":[36,138],"still":[37],"unknown.":[38],"In":[39],"this":[40,45],"paper,":[41],"we":[42],"focus":[43],"on":[44,112],"question":[46],"concretely":[47],"and":[48,52,117],"give":[49],"both":[50],"analytical":[51,70],"empirical":[53],"results.":[54],"We":[55],"derive":[56],"upper":[59],"bound":[60],"by":[67,100,140],"investigating":[68],"formula":[71],"appearance":[73],"changes":[74],"due":[75],"to":[76],"motion":[77],"variables":[78],"light":[80],"sources.":[81],"Theoretical":[82],"results":[83,106,126],"show":[84],"in":[85,145],"real-world":[86],"scenes":[87],"could":[96],"be":[97],"expressed":[98],"well":[99],"a":[101],"low-dimensional":[102,132],"linear":[103,133],"subspace.":[104],"Empirical":[105],"principal":[109],"component":[110],"analysis":[111],"YaleB":[114],"Face":[115],"database":[116,120],"our":[118],"are":[121],"consistent":[122],"with":[123,148],"completely.":[127],"The":[128],"application":[129],"demonstrated":[139],"foreground":[142],"detection":[143],"task":[144],"visual":[146],"surveillance":[147],"drastic":[149],"changes.":[151]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}