{"id":"https://openalex.org/W2100087039","doi":"https://doi.org/10.1109/icip.2008.4711870","title":"Estimation of vehicle velocity and traffic intensity using rectified images","display_name":"Estimation of vehicle velocity and traffic intensity using rectified images","publication_year":2008,"publication_date":"2008-01-01","ids":{"openalex":"https://openalex.org/W2100087039","doi":"https://doi.org/10.1109/icip.2008.4711870","mag":"2100087039"},"language":"en","primary_location":{"id":"doi:10.1109/icip.2008.4711870","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icip.2008.4711870","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 15th IEEE International Conference on Image Processing","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/A5111994527","display_name":"Cristina Maduro","orcid":null},"institutions":[{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]},{"id":"https://openalex.org/I4210125590","display_name":"Institute for Systems Engineering and Computers","ror":"https://ror.org/033wn8m60","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Cristina Maduro","raw_affiliation_strings":["ISR-Institute of Systems and Robotics, Department of Electrical Engineering, FCT-Universidade de Coimbra, Coimbra, Portugal","Dept. of Electr. Eng., Univ. of Coimbra, Coimbra"],"affiliations":[{"raw_affiliation_string":"ISR-Institute of Systems and Robotics, Department of Electrical Engineering, FCT-Universidade de Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I4210125590","https://openalex.org/I76903346"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. of Coimbra, Coimbra","institution_ids":["https://openalex.org/I76903346"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5104017688","display_name":"Katherine Batista","orcid":null},"institutions":[{"id":"https://openalex.org/I4210125590","display_name":"Institute for Systems Engineering and Computers","ror":"https://ror.org/033wn8m60","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210125590"]},{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Katherine Batista","raw_affiliation_strings":["ISR-Institute of Systems and Robotics, Department of Electrical Engineering, FCT-Universidade de Coimbra, Coimbra, Portugal","Dept. of Electr. Eng., Univ. of Coimbra, Coimbra"],"affiliations":[{"raw_affiliation_string":"ISR-Institute of Systems and Robotics, Department of Electrical Engineering, FCT-Universidade de Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I4210125590","https://openalex.org/I76903346"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. of Coimbra, Coimbra","institution_ids":["https://openalex.org/I76903346"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059744952","display_name":"Paulo Peixoto","orcid":"https://orcid.org/0000-0002-3680-564X"},"institutions":[{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]},{"id":"https://openalex.org/I4210125590","display_name":"Institute for Systems Engineering and Computers","ror":"https://ror.org/033wn8m60","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Paulo Peixoto","raw_affiliation_strings":["ISR-Institute of Systems and Robotics, Department of Electrical Engineering, FCT-Universidade de Coimbra, Coimbra, Portugal","Dept. of Electr. Eng., Univ. of Coimbra, Coimbra"],"affiliations":[{"raw_affiliation_string":"ISR-Institute of Systems and Robotics, Department of Electrical Engineering, FCT-Universidade de Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I4210125590","https://openalex.org/I76903346"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. of Coimbra, Coimbra","institution_ids":["https://openalex.org/I76903346"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5045422006","display_name":"Jorge Batista","orcid":"https://orcid.org/0000-0003-2387-5961"},"institutions":[{"id":"https://openalex.org/I4210125590","display_name":"Institute for Systems Engineering and Computers","ror":"https://ror.org/033wn8m60","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210125590"]},{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Jorge Batista","raw_affiliation_strings":["ISR-Institute of Systems and Robotics, Department of Electrical Engineering, FCT-Universidade de Coimbra, Coimbra, Portugal","Dept. of Electr. Eng., Univ. of Coimbra, Coimbra"],"affiliations":[{"raw_affiliation_string":"ISR-Institute of Systems and Robotics, Department of Electrical Engineering, FCT-Universidade de Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I4210125590","https://openalex.org/I76903346"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Univ. of Coimbra, Coimbra","institution_ids":["https://openalex.org/I76903346"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5111994527"],"corresponding_institution_ids":["https://openalex.org/I4210125590","https://openalex.org/I76903346"],"apc_list":null,"apc_paid":null,"fwci":3.7886,"has_fulltext":false,"cited_by_count":59,"citation_normalized_percentile":{"value":0.9273021,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"777","last_page":"780"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11099","display_name":"Autonomous Vehicle Technology and Safety","score":0.9976999759674072,"subfield":{"id":"https://openalex.org/subfields/2203","display_name":"Automotive 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/T12549","display_name":"Image and Object Detection Techniques","score":0.9944000244140625,"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/ground-plane","display_name":"Ground plane","score":0.6660574078559875},{"id":"https://openalex.org/keywords/plane","display_name":"Plane (geometry)","score":0.6126779317855835},{"id":"https://openalex.org/keywords/scale","display_name":"Scale (ratio)","score":0.5142397284507751},{"id":"https://openalex.org/keywords/image-plane","display_name":"Image plane","score":0.502770185470581},{"id":"https://openalex.org/keywords/intensity","display_name":"Intensity (physics)","score":0.4909527599811554},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4770723581314087},{"id":"https://openalex.org/keywords/ground-truth","display_name":"Ground truth","score":0.469574898481369},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4398406445980072},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.38115793466567993},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.37928253412246704},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.3470219373703003},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.22880035638809204},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.22329020500183105},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.16971755027770996},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.16958993673324585},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.14120346307754517},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.1287684440612793},{"id":"https://openalex.org/keywords/cartography","display_name":"Cartography","score":0.09247002005577087},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.0793757438659668}],"concepts":[{"id":"https://openalex.org/C88764893","wikidata":"https://www.wikidata.org/wiki/Q1547722","display_name":"Ground plane","level":3,"score":0.6660574078559875},{"id":"https://openalex.org/C17825722","wikidata":"https://www.wikidata.org/wiki/Q17285","display_name":"Plane (geometry)","level":2,"score":0.6126779317855835},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.5142397284507751},{"id":"https://openalex.org/C120515352","wikidata":"https://www.wikidata.org/wiki/Q2564580","display_name":"Image plane","level":3,"score":0.502770185470581},{"id":"https://openalex.org/C93038891","wikidata":"https://www.wikidata.org/wiki/Q1061524","display_name":"Intensity (physics)","level":2,"score":0.4909527599811554},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4770723581314087},{"id":"https://openalex.org/C146849305","wikidata":"https://www.wikidata.org/wiki/Q370766","display_name":"Ground truth","level":2,"score":0.469574898481369},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4398406445980072},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.38115793466567993},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.37928253412246704},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.3470219373703003},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.22880035638809204},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.22329020500183105},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.16971755027770996},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.16958993673324585},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.14120346307754517},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.1287684440612793},{"id":"https://openalex.org/C58640448","wikidata":"https://www.wikidata.org/wiki/Q42515","display_name":"Cartography","level":1,"score":0.09247002005577087},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0793757438659668},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icip.2008.4711870","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icip.2008.4711870","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 15th IEEE International Conference on Image Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities","score":0.699999988079071}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W2083402998","https://openalex.org/W2085261163","https://openalex.org/W2118002377","https://openalex.org/W2118877769","https://openalex.org/W2144513431","https://openalex.org/W6677548441"],"related_works":["https://openalex.org/W1632903234","https://openalex.org/W3004045746","https://openalex.org/W2914179169","https://openalex.org/W4281667925","https://openalex.org/W2086929871","https://openalex.org/W2166504097","https://openalex.org/W2020794187","https://openalex.org/W1496095671","https://openalex.org/W2551226385","https://openalex.org/W2043151189"],"abstract_inverted_index":{"This":[0,21,65],"paper":[1],"presents":[2],"an":[3],"automatic":[4],"method":[5],"to":[6,37,57,112],"estimate":[7],"vehicle":[8,59,123],"velocity":[9,60,124],"and":[10,33,81,89],"determine":[11,120],"the":[12,24,30,48,62,72,78,87,92,97,102,114,121],"number":[13],"of":[14,26,91,125],"vehicles":[15],"per":[16],"lane":[17,116],"using":[18],"rectified":[19,98],"images.":[20],"approach":[22],"requires":[23],"knowledge":[25],"two":[27],"lengths":[28],"on":[29,71,77,96],"ground":[31,79],"plane":[32,74,80],"can":[34,82],"be":[35,83],"applied":[36],"highway":[38,94,115],"scenarios":[39],"that":[40],"possess":[41],"fairly":[42],"straight":[43],"lanes":[44,95],"in":[45,55,61],"areas":[46],"near":[47],"camera.":[49],"A":[50],"scale":[51,66],"factor":[52,67],"is":[53,109],"determined,":[54],"order":[56],"ascertain":[58],"sought":[63],"units.":[64],"associates":[68],"distances":[69,76],"traveled":[70],"image":[73],"with":[75],"obtained":[84],"by":[85],"identifying":[86],"period":[88],"location":[90],"striped":[93],"background":[99],"image.":[100],"Once":[101],"previously":[103],"referred":[104],"lines":[105],"are":[106],"located":[107],"it":[108],"then":[110],"possible":[111],"locate":[113],"boundaries":[117],"and,":[118],"therefore,":[119],"mean":[122],"each":[126],"lane.":[127]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":6},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":3}],"updated_date":"2026-02-25T08:12:03.925757","created_date":"2025-10-10T00:00:00"}
