{"id":"https://openalex.org/W3209269561","doi":"https://doi.org/10.1109/mapr53640.2021.9585279","title":"An efficient method to improve the accuracy of Vietnamese vehicle license plate recognition in unconstrained environment","display_name":"An efficient method to improve the accuracy of Vietnamese vehicle license plate recognition in unconstrained environment","publication_year":2021,"publication_date":"2021-10-01","ids":{"openalex":"https://openalex.org/W3209269561","doi":"https://doi.org/10.1109/mapr53640.2021.9585279","mag":"3209269561"},"language":"en","primary_location":{"id":"doi:10.1109/mapr53640.2021.9585279","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mapr53640.2021.9585279","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 International Conference on Multimedia Analysis and Pattern Recognition (MAPR)","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/A5055909403","display_name":"Khanh Nguyen Quoc","orcid":"https://orcid.org/0000-0001-8591-7165"},"institutions":[{"id":"https://openalex.org/I131359167","display_name":"Le Quy Don Technical University","ror":"https://ror.org/04wgyjv21","country_code":"VN","type":"education","lineage":["https://openalex.org/I131359167"]}],"countries":["VN"],"is_corresponding":true,"raw_author_name":"Khanh Nguyen Quoc","raw_affiliation_strings":["Le Quy Don Technical University,Faculty Of Information Technology","Faculty Of Information Technology, Le Quy Don Technical University"],"affiliations":[{"raw_affiliation_string":"Le Quy Don Technical University,Faculty Of Information Technology","institution_ids":["https://openalex.org/I131359167"]},{"raw_affiliation_string":"Faculty Of Information Technology, Le Quy Don Technical University","institution_ids":["https://openalex.org/I131359167"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045842570","display_name":"Dan Pham Van","orcid":null},"institutions":[{"id":"https://openalex.org/I131359167","display_name":"Le Quy Don Technical University","ror":"https://ror.org/04wgyjv21","country_code":"VN","type":"education","lineage":["https://openalex.org/I131359167"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Dan Pham Van","raw_affiliation_strings":["Le Quy Don Technical University,Faculty Of Information Technology","Faculty Of Information Technology, Le Quy Don Technical University"],"affiliations":[{"raw_affiliation_string":"Le Quy Don Technical University,Faculty Of Information Technology","institution_ids":["https://openalex.org/I131359167"]},{"raw_affiliation_string":"Faculty Of Information Technology, Le Quy Don Technical University","institution_ids":["https://openalex.org/I131359167"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057937337","display_name":"Van Pham Thi Bich","orcid":null},"institutions":[{"id":"https://openalex.org/I131359167","display_name":"Le Quy Don Technical University","ror":"https://ror.org/04wgyjv21","country_code":"VN","type":"education","lineage":["https://openalex.org/I131359167"]}],"countries":["VN"],"is_corresponding":false,"raw_author_name":"Van Pham Thi Bich","raw_affiliation_strings":["Le Quy Don Technical University,Faculty Of Information Technology","Faculty Of Information Technology, Le Quy Don Technical University"],"affiliations":[{"raw_affiliation_string":"Le Quy Don Technical University,Faculty Of Information Technology","institution_ids":["https://openalex.org/I131359167"]},{"raw_affiliation_string":"Faculty Of Information Technology, Le Quy Don Technical University","institution_ids":["https://openalex.org/I131359167"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5055909403"],"corresponding_institution_ids":["https://openalex.org/I131359167"],"apc_list":null,"apc_paid":null,"fwci":0.1247,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.50435045,"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":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12707","display_name":"Vehicle License Plate Recognition","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T12707","display_name":"Vehicle License Plate Recognition","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T10036","display_name":"Advanced Neural Network Applications","score":0.9973000288009644,"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/T10601","display_name":"Handwritten Text Recognition Techniques","score":0.992900013923645,"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/license","display_name":"License","score":0.7154504060745239},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.675767719745636},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.645950436592102},{"id":"https://openalex.org/keywords/character","display_name":"Character (mathematics)","score":0.6155991554260254},{"id":"https://openalex.org/keywords/vietnamese","display_name":"Vietnamese","score":0.5981416702270508},{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.5312509536743164},{"id":"https://openalex.org/keywords/optical-character-recognition","display_name":"Optical character recognition","score":0.48724284768104553},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.48620858788490295},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.43147844076156616},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.35664796829223633},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3259153664112091},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1905459761619568}],"concepts":[{"id":"https://openalex.org/C2780560020","wikidata":"https://www.wikidata.org/wiki/Q79719","display_name":"License","level":2,"score":0.7154504060745239},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.675767719745636},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.645950436592102},{"id":"https://openalex.org/C2780861071","wikidata":"https://www.wikidata.org/wiki/Q1062934","display_name":"Character (mathematics)","level":2,"score":0.6155991554260254},{"id":"https://openalex.org/C103621254","wikidata":"https://www.wikidata.org/wiki/Q9199","display_name":"Vietnamese","level":2,"score":0.5981416702270508},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.5312509536743164},{"id":"https://openalex.org/C546480517","wikidata":"https://www.wikidata.org/wiki/Q167555","display_name":"Optical character recognition","level":3,"score":0.48724284768104553},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.48620858788490295},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.43147844076156616},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.35664796829223633},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3259153664112091},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1905459761619568},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/mapr53640.2021.9585279","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mapr53640.2021.9585279","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 International Conference on Multimedia Analysis and Pattern Recognition (MAPR)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W1522301498","https://openalex.org/W1686810756","https://openalex.org/W1861492603","https://openalex.org/W1902237438","https://openalex.org/W1924770834","https://openalex.org/W1936750108","https://openalex.org/W2022653218","https://openalex.org/W2098789383","https://openalex.org/W2122726673","https://openalex.org/W2127141656","https://openalex.org/W2133564696","https://openalex.org/W2194187530","https://openalex.org/W2570343428","https://openalex.org/W2580069344","https://openalex.org/W2765763274","https://openalex.org/W2783152060","https://openalex.org/W2785672431","https://openalex.org/W2895160027","https://openalex.org/W2918536291","https://openalex.org/W2935837427","https://openalex.org/W2948210185","https://openalex.org/W2949335953","https://openalex.org/W2962829835","https://openalex.org/W2963323244","https://openalex.org/W2963402313","https://openalex.org/W2964121744","https://openalex.org/W2964308564","https://openalex.org/W3034750257","https://openalex.org/W3122445164","https://openalex.org/W6637373629","https://openalex.org/W6640212811","https://openalex.org/W6679434410","https://openalex.org/W6732950465","https://openalex.org/W6760424586","https://openalex.org/W6765515691","https://openalex.org/W6769006072","https://openalex.org/W6789654255"],"related_works":["https://openalex.org/W2901286616","https://openalex.org/W2291461084","https://openalex.org/W2050882094","https://openalex.org/W3113733647","https://openalex.org/W4206924063","https://openalex.org/W3042674643","https://openalex.org/W1844055093","https://openalex.org/W61780229","https://openalex.org/W1991513203","https://openalex.org/W3178467699"],"abstract_inverted_index":{"Background:":[0],"Most":[1],"previous":[2],"studies":[3,41],"in":[4,16,23,44,48,69,72,115,127,148,191,202,205],"automatic":[5],"license":[6,13],"plate":[7,14],"recognition":[8,107],"(ALPR)":[9],"focused":[10],"on":[11,42,98],"recognizing":[12],"(LP)":[15],"constrained":[17],"environment":[18,71,204],"where":[19],"cameras":[20],"are":[21,37],"installed":[22],"front":[24],"of":[25,57,82,178,200],"LPs":[26],"and":[27,34,51,91,112,137,163,193],"other":[28],"conditions":[29],"such":[30],"as":[31],"lighting,":[32],"weather,":[33],"image":[35],"quality":[36],"satisfied.":[38],"Besides,":[39],"recent":[40],"ALPR":[43,65,189,201],"Vietnam":[45],"have":[46,52],"conducted":[47],"small":[49],"datasets":[50],"not":[53],"covered":[54],"various":[55],"cases":[56],"Vietnamese":[58,179],"LPs.Aim:":[59],"To":[60],"develop":[61],"a":[62,93,116,175],"model":[63],"for":[64,87,102],"that":[66,182],"is":[67],"effective":[68],"unconstrained":[70,121,203],"Vietnam.Method:":[73],"We":[74,78,110,173],"propose":[75],"two":[76],"improvements:":[77],"apply":[79],"the":[80,83,103],"idea":[81],"key-point":[84],"detection":[85,89,129],"problem":[86],"LP":[88,104,128,149,180],"part,":[90],"use":[92],"segmentation":[94],"free":[95],"approach":[96],"based":[97],"encoder":[99],"decoder":[100],"network":[101],"optical":[105],"character":[106,171],"(OCR)":[108],"part.":[109],"train":[111],"evaluate":[113,188],"models":[114],"large":[117,176],"dataset":[118,177],"collected":[119],"from":[120],"environment.Results:":[122],"Our":[123],"results":[124],"show":[125],"improvements":[126],"accuracy":[130,147],"with":[131],"mean":[132],"IOU":[133],"mIOU":[134],"=":[135,143,158,168],"95.01%":[136],"precision":[138],"P":[139],"<inf":[140,155,165],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[141,156,166],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">75</inf>":[142],"99,":[144],"5%.":[145],"The":[146],"OCR":[150],"was":[151],"up":[152],"to":[153,187,197],"Acc":[154,164],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">seq</inf>":[157],"99.28%":[159],"at":[160,170],"sequence":[161],"level":[162],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">char</inf>":[167],"99.7%":[169],"level.Conclusion:":[172],"provide":[174],"images":[181],"can":[183],"be":[184],"effectively":[185],"used":[186],"systems":[190],"Vietnam,":[192],"proposes":[194],"improvement":[195],"techniques":[196],"tackle":[198],"problems":[199],"Vietnam.":[206]},"counts_by_year":[{"year":2024,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
