{"id":"https://openalex.org/W4395667705","doi":"https://doi.org/10.1145/3625687.3625807","title":"Testing Masks and Air Filters With Your Smartphones","display_name":"Testing Masks and Air Filters With Your Smartphones","publication_year":2023,"publication_date":"2023-11-12","ids":{"openalex":"https://openalex.org/W4395667705","doi":"https://doi.org/10.1145/3625687.3625807"},"language":"en","primary_location":{"id":"doi:10.1145/3625687.3625807","is_oa":true,"landing_page_url":"http://dx.doi.org/10.1145/3625687.3625807","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3625687.3625807","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st ACM Conference on Embedded Networked Sensor Systems","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://dl.acm.org/doi/pdf/10.1145/3625687.3625807","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5065526780","display_name":"Bangjie Sun","orcid":"https://orcid.org/0000-0002-5508-1851"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Bangjie Sun","raw_affiliation_strings":["National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-5508-1851","affiliations":[{"raw_affiliation_string":"National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051446603","display_name":"Kanav Sabharwal","orcid":"https://orcid.org/0000-0001-6416-3915"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Kanav Sabharwal","raw_affiliation_strings":["National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0001-6416-3915","affiliations":[{"raw_affiliation_string":"National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Gyuyeon Kim","orcid":"https://orcid.org/0000-0002-2002-0581"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Gyuyeon Kim","raw_affiliation_strings":["Yonsei University, Seoul, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0002-2002-0581","affiliations":[{"raw_affiliation_string":"Yonsei University, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I193775966"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101428727","display_name":"Mun Choon Chan","orcid":"https://orcid.org/0000-0002-6563-275X"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Mun Choon Chan","raw_affiliation_strings":["National University of Singapore, Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-6563-275X","affiliations":[{"raw_affiliation_string":"National University of Singapore, Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036146130","display_name":"Jun Han","orcid":"https://orcid.org/0000-0003-0798-704X"},"institutions":[{"id":"https://openalex.org/I193775966","display_name":"Yonsei University","ror":"https://ror.org/01wjejq96","country_code":"KR","type":"education","lineage":["https://openalex.org/I193775966"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jun Han","raw_affiliation_strings":["Yonsei University, Seoul, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0003-0798-704X","affiliations":[{"raw_affiliation_string":"Yonsei University, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I193775966"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2296,"has_fulltext":true,"cited_by_count":2,"citation_normalized_percentile":{"value":0.61604615,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"265","last_page":"279"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9890999794006348,"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":0.9890999794006348,"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":0.9883000254631042,"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/T10914","display_name":"Tactile and Sensory Interactions","score":0.974399983882904,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/filtration","display_name":"Filtration (mathematics)","score":0.753380537033081},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.6792008876800537},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5728998780250549},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.32090359926223755},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.15187332034111023},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09117203950881958}],"concepts":[{"id":"https://openalex.org/C128489963","wikidata":"https://www.wikidata.org/wiki/Q1187724","display_name":"Filtration (mathematics)","level":2,"score":0.753380537033081},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.6792008876800537},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5728998780250549},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.32090359926223755},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.15187332034111023},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09117203950881958},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3625687.3625807","is_oa":true,"landing_page_url":"http://dx.doi.org/10.1145/3625687.3625807","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3625687.3625807","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st ACM Conference on Embedded Networked Sensor Systems","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3625687.3625807","is_oa":true,"landing_page_url":"http://dx.doi.org/10.1145/3625687.3625807","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3625687.3625807","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 21st ACM Conference on Embedded Networked Sensor Systems","raw_type":"proceedings-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.6700000166893005,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"},{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"},{"id":"https://openalex.org/F4320328359","display_name":"Ministry of Science and ICT, South Korea","ror":"https://ror.org/01wpjm123"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4395667705.pdf","grobid_xml":"https://content.openalex.org/works/W4395667705.grobid-xml"},"referenced_works_count":47,"referenced_works":["https://openalex.org/W95608104","https://openalex.org/W156369296","https://openalex.org/W1577748355","https://openalex.org/W1900414347","https://openalex.org/W1906324046","https://openalex.org/W2067995882","https://openalex.org/W2069321536","https://openalex.org/W2074871148","https://openalex.org/W2093035311","https://openalex.org/W2110744265","https://openalex.org/W2125146823","https://openalex.org/W2128816837","https://openalex.org/W2133059825","https://openalex.org/W2136167986","https://openalex.org/W2151049637","https://openalex.org/W2206310109","https://openalex.org/W2227462648","https://openalex.org/W2252295525","https://openalex.org/W2465446308","https://openalex.org/W2508221593","https://openalex.org/W2537024443","https://openalex.org/W2614893991","https://openalex.org/W2874356750","https://openalex.org/W2900734216","https://openalex.org/W2950465411","https://openalex.org/W2962858109","https://openalex.org/W2979955845","https://openalex.org/W2982482473","https://openalex.org/W2986375044","https://openalex.org/W2996829064","https://openalex.org/W3017706217","https://openalex.org/W3026802546","https://openalex.org/W3033266797","https://openalex.org/W3035860952","https://openalex.org/W3086015407","https://openalex.org/W3092541804","https://openalex.org/W3113878582","https://openalex.org/W3197017702","https://openalex.org/W3203348415","https://openalex.org/W3205591293","https://openalex.org/W3212426532","https://openalex.org/W4220875062","https://openalex.org/W4221110503","https://openalex.org/W4283015582","https://openalex.org/W4309450074","https://openalex.org/W4366976461","https://openalex.org/W4381426122"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W2383005377","https://openalex.org/W1983727634","https://openalex.org/W2463868704","https://openalex.org/W2088396485","https://openalex.org/W1896264233","https://openalex.org/W2353769888"],"abstract_inverted_index":{"The":[0,158],"demand":[1],"for":[2,74,112],"masks":[3],"and":[4,40,46,90,108,127,169,226],"air":[5,24],"filters":[6,42],"with":[7,70,195,205,218,230],"effective":[8],"filtration":[9,75,96,143,197],"capabilities":[10],"is":[11,132],"skyrocketing":[12],"as":[13],"there":[14,64],"are":[15,31,51,59,65,101,105],"many":[16],"applications":[17],"that":[18,104,136,213],"require":[19],"protecting":[20],"users":[21,50],"from":[22,163],"inhaling":[23],"pollutants":[25],"or":[26,148],"hazardous":[27],"particles.":[28],"Unfortunately,":[29],"we":[30,120,211],"witnessing":[32],"a":[33,71,123,133,138,146,149,153,206,219],"surge":[34],"in":[35,54,182],"the":[36,62,82,86,95,113,142,177],"number":[37],"of":[38,145,155,160,166,224,234],"counterfeit":[39],"substandard":[41,228],"attributed":[43],"to":[44,78,92,110,140,202],"malicious":[45],"inept":[47],"manufacturers.":[48],"Hence,":[49],"left":[52],"vulnerable":[53],"not":[55],"knowing":[56],"which":[57],"products":[58,194,229],"reliable.":[60],"Exacerbating":[61],"problem,":[63,119],"diverse":[66],"filter":[67,128,150,188],"standards,":[68],"each":[69],"unique":[72],"expression":[73],"efficiencies,":[76],"adding":[77],"user":[79,84,139],"confusion.":[80],"Moreover,":[81],"average":[83],"lacks":[85],"necessary":[87],"tools,":[88],"techniques,":[89],"knowledge":[91],"independently":[93],"verify":[94],"efficiency.":[97],"Specifically,":[98],"state-of-the-art":[99,207],"solutions":[100],"lab-based":[102],"machines":[103],"extremely":[106],"expensive":[107],"difficult":[109],"access":[111],"general":[114],"public.":[115],"To":[116],"solve":[117],"this":[118],"propose":[121],"FilterOp,":[122],"novel":[124],"smartphone-based":[125],"mask":[126,147],"testing":[129,209],"system.":[130],"FilterOp":[131,161,181,214],"practical":[134],"solution":[135],"allows":[137],"estimate":[141],"efficiency":[144],"using":[151,186],"only":[152],"pair":[154],"commodity":[156],"smartphones.":[157],"novelty":[159],"comes":[162],"its":[164],"use":[165],"light":[167,174],"absorption":[168],"scattering":[170],"effects,":[171],"observed":[172],"when":[173],"propagates":[175],"through":[176],"filter.":[178],"We":[179],"evaluate":[180],"comprehensive":[183],"real-world":[184],"experiments":[185],"256":[187],"instances":[189],"across":[190],"27":[191],"different":[192],"make-and-model":[193],"varying":[196],"efficiencies.":[198],"Comparing":[199],"our":[200],"results":[201,217],"those":[203],"obtained":[204],"government-certified":[208],"machine,":[210],"observe":[212],"yields":[215],"comparable":[216],"low":[220],"mean":[221],"absolute":[222],"error":[223],"2.7%,":[225],"detects":[227],"an":[231],"overall":[232],"accuracy":[233],"96%.":[235]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}