{"id":"https://openalex.org/W2791291678","doi":"https://doi.org/10.1109/infocom.2018.8485867","title":"Eyelight: Light-and-Shadow-Based Occupancy Estimation and Room Activity Recognition","display_name":"Eyelight: Light-and-Shadow-Based Occupancy Estimation and Room Activity Recognition","publication_year":2018,"publication_date":"2018-04-01","ids":{"openalex":"https://openalex.org/W2791291678","doi":"https://doi.org/10.1109/infocom.2018.8485867","mag":"2791291678"},"language":"en","primary_location":{"id":"doi:10.1109/infocom.2018.8485867","is_oa":false,"landing_page_url":"https://doi.org/10.1109/infocom.2018.8485867","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE INFOCOM 2018 - IEEE Conference on Computer Communications","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/A5100686335","display_name":"Vi\u1ec7t H\u00f9ng Nguy\u1ec5n","orcid":"https://orcid.org/0000-0001-6729-3520"},"institutions":[{"id":"https://openalex.org/I4210096112","display_name":"Rutgers Sexual and Reproductive Health and Rights","ror":"https://ror.org/00rcvgx40","country_code":"NL","type":"other","lineage":["https://openalex.org/I4210096112"]}],"countries":["NL"],"is_corresponding":true,"raw_author_name":"Viet Nguyen","raw_affiliation_strings":["WINLAB, Rutgers University"],"affiliations":[{"raw_affiliation_string":"WINLAB, Rutgers University","institution_ids":["https://openalex.org/I4210096112"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108034686","display_name":"Mohamed Ibrahim","orcid":"https://orcid.org/0000-0003-3168-6626"},"institutions":[{"id":"https://openalex.org/I4210096112","display_name":"Rutgers Sexual and Reproductive Health and Rights","ror":"https://ror.org/00rcvgx40","country_code":"NL","type":"other","lineage":["https://openalex.org/I4210096112"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Mohamed Ibrahim","raw_affiliation_strings":["WINLAB, Rutgers University"],"affiliations":[{"raw_affiliation_string":"WINLAB, Rutgers University","institution_ids":["https://openalex.org/I4210096112"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087745121","display_name":"Siddharth Rupavatharam","orcid":null},"institutions":[{"id":"https://openalex.org/I4210096112","display_name":"Rutgers Sexual and Reproductive Health and Rights","ror":"https://ror.org/00rcvgx40","country_code":"NL","type":"other","lineage":["https://openalex.org/I4210096112"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Siddharth Rupavatharam","raw_affiliation_strings":["WINLAB, Rutgers University"],"affiliations":[{"raw_affiliation_string":"WINLAB, Rutgers University","institution_ids":["https://openalex.org/I4210096112"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001811028","display_name":"Minitha Jawahar","orcid":null},"institutions":[{"id":"https://openalex.org/I4210096112","display_name":"Rutgers Sexual and Reproductive Health and Rights","ror":"https://ror.org/00rcvgx40","country_code":"NL","type":"other","lineage":["https://openalex.org/I4210096112"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Minitha Jawahar","raw_affiliation_strings":["WINLAB, Rutgers University"],"affiliations":[{"raw_affiliation_string":"WINLAB, Rutgers University","institution_ids":["https://openalex.org/I4210096112"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078160983","display_name":"Marco Gruteser","orcid":"https://orcid.org/0000-0002-7424-4951"},"institutions":[{"id":"https://openalex.org/I4210096112","display_name":"Rutgers Sexual and Reproductive Health and Rights","ror":"https://ror.org/00rcvgx40","country_code":"NL","type":"other","lineage":["https://openalex.org/I4210096112"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Marco Gruteser","raw_affiliation_strings":["WINLAB, Rutgers University"],"affiliations":[{"raw_affiliation_string":"WINLAB, Rutgers University","institution_ids":["https://openalex.org/I4210096112"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103114504","display_name":"Richard Howard","orcid":"https://orcid.org/0009-0004-0979-4174"},"institutions":[{"id":"https://openalex.org/I4210096112","display_name":"Rutgers Sexual and Reproductive Health and Rights","ror":"https://ror.org/00rcvgx40","country_code":"NL","type":"other","lineage":["https://openalex.org/I4210096112"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Richard Howard","raw_affiliation_strings":["WINLAB, Rutgers University"],"affiliations":[{"raw_affiliation_string":"WINLAB, Rutgers University","institution_ids":["https://openalex.org/I4210096112"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5100686335"],"corresponding_institution_ids":["https://openalex.org/I4210096112"],"apc_list":null,"apc_paid":null,"fwci":2.575,"has_fulltext":false,"cited_by_count":41,"citation_normalized_percentile":{"value":0.9009737,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"351","last_page":"359"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9991000294685364,"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"}},"topics":[{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9991000294685364,"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"}},{"id":"https://openalex.org/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9894999861717224,"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/T10444","display_name":"Context-Aware Activity Recognition Systems","score":0.9829000234603882,"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":0.7147433757781982},{"id":"https://openalex.org/keywords/occupancy","display_name":"Occupancy","score":0.7090244293212891},{"id":"https://openalex.org/keywords/shadow","display_name":"Shadow (psychology)","score":0.6254530549049377},{"id":"https://openalex.org/keywords/photodetector","display_name":"Photodetector","score":0.5767009854316711},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5361909866333008},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.508461594581604},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.5039114356040955},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.4899968206882477},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.4636788070201874},{"id":"https://openalex.org/keywords/synchronization","display_name":"Synchronization (alternating current)","score":0.4411202073097229},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.16432645916938782},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.12185221910476685},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.09534832835197449}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7147433757781982},{"id":"https://openalex.org/C160331591","wikidata":"https://www.wikidata.org/wiki/Q7075743","display_name":"Occupancy","level":2,"score":0.7090244293212891},{"id":"https://openalex.org/C117797892","wikidata":"https://www.wikidata.org/wiki/Q286363","display_name":"Shadow (psychology)","level":2,"score":0.6254530549049377},{"id":"https://openalex.org/C23125352","wikidata":"https://www.wikidata.org/wiki/Q210765","display_name":"Photodetector","level":2,"score":0.5767009854316711},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5361909866333008},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.508461594581604},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.5039114356040955},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.4899968206882477},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.4636788070201874},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.4411202073097229},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.16432645916938782},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12185221910476685},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.09534832835197449},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C542102704","wikidata":"https://www.wikidata.org/wiki/Q183257","display_name":"Psychotherapist","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/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/infocom.2018.8485867","is_oa":false,"landing_page_url":"https://doi.org/10.1109/infocom.2018.8485867","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE INFOCOM 2018 - IEEE Conference on Computer Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.6800000071525574,"id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W1440897814","https://openalex.org/W1585610923","https://openalex.org/W1666724740","https://openalex.org/W1974459074","https://openalex.org/W1988790447","https://openalex.org/W1990603581","https://openalex.org/W2016965338","https://openalex.org/W2020405099","https://openalex.org/W2050304483","https://openalex.org/W2104239624","https://openalex.org/W2115068461","https://openalex.org/W2130287054","https://openalex.org/W2145881665","https://openalex.org/W2154618973","https://openalex.org/W2170102584","https://openalex.org/W2170447496","https://openalex.org/W2172292165","https://openalex.org/W2472986878","https://openalex.org/W2488240503","https://openalex.org/W2526563283","https://openalex.org/W2526689049","https://openalex.org/W2611843518","https://openalex.org/W4248437541","https://openalex.org/W6628331383","https://openalex.org/W6635170648","https://openalex.org/W6662721785"],"related_works":["https://openalex.org/W4282043467","https://openalex.org/W2105697914","https://openalex.org/W2202433167","https://openalex.org/W3093197249","https://openalex.org/W1540010871","https://openalex.org/W3023979140","https://openalex.org/W3177545769","https://openalex.org/W2904068067","https://openalex.org/W1565491139","https://openalex.org/W4297618682"],"abstract_inverted_index":{"This":[0,72],"paper":[1],"explores":[2],"the":[3,38,56,60,156],"feasibility":[4],"of":[5,10,20,76,158,163],"localizing":[6],"and":[7,54,67,107,132,145,167,170,181,184],"detecting":[8],"activities":[9],"building":[11],"occupants":[12],"using":[13],"visible":[14],"light":[15,21,32,52,57,68,78,105,143],"sensing":[16,27,110],"across":[17,80],"a":[18,41,45,74,92,97,108,149,172],"mesh":[19,75],"bulbs.":[22],"Existing":[23],"Visible":[24],"Light":[25],"activity":[26,133,168,185],"(VLS)":[28],"techniques":[29],"require":[30],"either":[31],"sensors":[33],"to":[34,43,62,83,102,112],"be":[35],"deployed":[36],"on":[37],"floor":[39,61],"or":[40],"person":[42],"carry":[44],"device.":[46],"Our":[47,136],"approach":[48],"integrates":[49],"photosensors":[50],"with":[51],"bulbs":[53,144],"exploits":[55],"reflected":[58],"off":[59],"achieve":[63],"an":[64],"entirely":[65],"device-free":[66],"source":[69],"based":[70],"system.":[71],"forms":[73],"virtual":[77],"barriers":[79],"networked":[81],"lights":[82],"track":[84],"shadows":[85],"cast":[86],"by":[87],"occupants.":[88],"The":[89],"design":[90],"employs":[91],"synchronization":[93],"circuit":[94,111],"that":[95],"implements":[96],"time":[98],"division":[99],"signaling":[100],"scheme":[101],"differentiate":[103],"between":[104],"sources":[106],"sensitive":[109],"detect":[113],"small":[114],"changes":[115],"in":[116,148,161],"weak":[117],"reflections.":[118],"Sensor":[119],"readings":[120],"are":[121],"fed":[122],"into":[123],"indoor":[124],"supervised":[125],"tracking":[126],"algorithms":[127],"as":[128,130,177,179],"well":[129,178],"occupancy":[131,165,183],"recognition":[134],"classifiers.":[135],"prototype":[137],"uses":[138],"modified":[139],"off-the-shelf":[140],"LED":[141],"flood":[142],"is":[146],"installed":[147],"typical":[150],"office":[151],"conference":[152],"room.":[153],"We":[154],"evaluate":[155],"performance":[157],"our":[159],"system":[160],"terms":[162],"localization,":[164],"estimation":[166],"classification,":[169],"find":[171],"0.89m":[173],"median":[174],"localization":[175],"error":[176],"93.7%":[180],"93.78%":[182],"classification":[186],"accuracy,":[187],"respectively.":[188]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":8},{"year":2019,"cited_by_count":5}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}