{"id":"https://openalex.org/W2158902636","doi":"https://doi.org/10.1109/wacv.2009.5403106","title":"A new method for the detection of singular points in fingerprint images","display_name":"A new method for the detection of singular points in fingerprint images","publication_year":2009,"publication_date":"2009-12-01","ids":{"openalex":"https://openalex.org/W2158902636","doi":"https://doi.org/10.1109/wacv.2009.5403106","mag":"2158902636"},"language":"en","primary_location":{"id":"doi:10.1109/wacv.2009.5403106","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wacv.2009.5403106","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 Workshop on Applications of Computer Vision (WACV)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://repositorio-aberto.up.pt/bitstream/10216/19474/2/60527.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102744400","display_name":"Filipe Magalh\u00e3es","orcid":"https://orcid.org/0000-0002-9417-206X"},"institutions":[{"id":"https://openalex.org/I121345201","display_name":"Instituto de Engenharia de Sistemas e Computadores Investiga\u00e7\u00e3o e Desenvolvimento","ror":"https://ror.org/04mqy3p58","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I121345201","https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Filipe Magalhaes","raw_affiliation_strings":["INESC-Porto, Portugal"],"affiliations":[{"raw_affiliation_string":"INESC-Porto, Portugal","institution_ids":["https://openalex.org/I121345201"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024451344","display_name":"H\u00e9lder P. Oliveira","orcid":"https://orcid.org/0000-0002-6193-8540"},"institutions":[{"id":"https://openalex.org/I121345201","display_name":"Instituto de Engenharia de Sistemas e Computadores Investiga\u00e7\u00e3o e Desenvolvimento","ror":"https://ror.org/04mqy3p58","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I121345201","https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Helder P. Oliveira","raw_affiliation_strings":["INESC-Porto, Portugal"],"affiliations":[{"raw_affiliation_string":"INESC-Porto, Portugal","institution_ids":["https://openalex.org/I121345201"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081534736","display_name":"Aur\u00e9lio Campilho","orcid":"https://orcid.org/0000-0002-5317-6275"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Aurelio C. Campilho","raw_affiliation_strings":["INEB, Porto, Portugal"],"affiliations":[{"raw_affiliation_string":"INEB, Porto, Portugal","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5102744400"],"corresponding_institution_ids":["https://openalex.org/I121345201"],"apc_list":null,"apc_paid":null,"fwci":3.2139,"has_fulltext":true,"cited_by_count":14,"citation_normalized_percentile":{"value":0.92340849,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"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/T10828","display_name":"Biometric Identification and Security","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10828","display_name":"Biometric Identification and Security","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T13192","display_name":"Forensic Fingerprint Detection Methods","score":0.9697999954223633,"subfield":{"id":"https://openalex.org/subfields/3311","display_name":"Safety Research"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13568","display_name":"Wood and Agarwood Research","score":0.9593999981880188,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/fingerprint","display_name":"Fingerprint (computing)","score":0.6841549873352051},{"id":"https://openalex.org/keywords/spurious-relationship","display_name":"Spurious relationship","score":0.6479254961013794},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6339730024337769},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6109964847564697},{"id":"https://openalex.org/keywords/biometrics","display_name":"Biometrics","score":0.6040488481521606},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.5954050421714783},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5559574961662292},{"id":"https://openalex.org/keywords/singular-point-of-a-curve","display_name":"Singular point of a curve","score":0.5390706658363342},{"id":"https://openalex.org/keywords/orientation","display_name":"Orientation (vector space)","score":0.5360735654830933},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.5186225771903992},{"id":"https://openalex.org/keywords/fingerprint-recognition","display_name":"Fingerprint recognition","score":0.5003607273101807},{"id":"https://openalex.org/keywords/singular-value-decomposition","display_name":"Singular value decomposition","score":0.49461743235588074},{"id":"https://openalex.org/keywords/ridge","display_name":"Ridge","score":0.4826967716217041},{"id":"https://openalex.org/keywords/field","display_name":"Field (mathematics)","score":0.4553419351577759},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.4481722414493561},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3673272430896759},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3497602343559265},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3057483434677124},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.09952369332313538},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.06731998920440674}],"concepts":[{"id":"https://openalex.org/C2777826928","wikidata":"https://www.wikidata.org/wiki/Q3745713","display_name":"Fingerprint (computing)","level":2,"score":0.6841549873352051},{"id":"https://openalex.org/C97256817","wikidata":"https://www.wikidata.org/wiki/Q1462316","display_name":"Spurious relationship","level":2,"score":0.6479254961013794},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6339730024337769},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6109964847564697},{"id":"https://openalex.org/C184297639","wikidata":"https://www.wikidata.org/wiki/Q177765","display_name":"Biometrics","level":2,"score":0.6040488481521606},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.5954050421714783},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5559574961662292},{"id":"https://openalex.org/C200917960","wikidata":"https://www.wikidata.org/wiki/Q3847057","display_name":"Singular point of a curve","level":2,"score":0.5390706658363342},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.5360735654830933},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.5186225771903992},{"id":"https://openalex.org/C168406668","wikidata":"https://www.wikidata.org/wiki/Q178022","display_name":"Fingerprint recognition","level":3,"score":0.5003607273101807},{"id":"https://openalex.org/C22789450","wikidata":"https://www.wikidata.org/wiki/Q420904","display_name":"Singular value decomposition","level":2,"score":0.49461743235588074},{"id":"https://openalex.org/C32277403","wikidata":"https://www.wikidata.org/wiki/Q740445","display_name":"Ridge","level":2,"score":0.4826967716217041},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.4553419351577759},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.4481722414493561},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3673272430896759},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3497602343559265},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3057483434677124},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.09952369332313538},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.06731998920440674},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","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}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/wacv.2009.5403106","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wacv.2009.5403106","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 Workshop on Applications of Computer Vision (WACV)","raw_type":"proceedings-article"},{"id":"pmh:oai:repositorio-aberto.up.pt:10216/19474","is_oa":true,"landing_page_url":"https://hdl.handle.net/10216/19474","pdf_url":"https://repositorio-aberto.up.pt/bitstream/10216/19474/2/60527.pdf","source":{"id":"https://openalex.org/S4306401934","display_name":"Open Repository of the University of Porto (University of Porto)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I182534213","host_organization_name":"Universidade do Porto","host_organization_lineage":["https://openalex.org/I182534213"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"book"}],"best_oa_location":{"id":"pmh:oai:repositorio-aberto.up.pt:10216/19474","is_oa":true,"landing_page_url":"https://hdl.handle.net/10216/19474","pdf_url":"https://repositorio-aberto.up.pt/bitstream/10216/19474/2/60527.pdf","source":{"id":"https://openalex.org/S4306401934","display_name":"Open Repository of the University of Porto (University of Porto)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I182534213","host_organization_name":"Universidade do Porto","host_organization_lineage":["https://openalex.org/I182534213"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"book"},"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16","score":0.75}],"awards":[{"id":"https://openalex.org/G2582522631","display_name":null,"funder_award_id":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"},{"id":"https://openalex.org/G3284537356","display_name":null,"funder_award_id":"SFRH/B","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"},{"id":"https://openalex.org/G5343509616","display_name":null,"funder_award_id":"and SFRH/BD/","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"},{"id":"https://openalex.org/G5818630289","display_name":null,"funder_award_id":"SFRH/BD/","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"},{"id":"https://openalex.org/G724804869","display_name":null,"funder_award_id":"SFRH/","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"},{"id":"https://openalex.org/G769346256","display_name":null,"funder_award_id":"financial support","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"}],"funders":[{"id":"https://openalex.org/F4320334779","display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","ror":"https://ror.org/00snfqn58"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2158902636.pdf","grobid_xml":"https://content.openalex.org/works/W2158902636.grobid-xml"},"referenced_works_count":14,"referenced_works":["https://openalex.org/W1569096659","https://openalex.org/W2014470493","https://openalex.org/W2023626880","https://openalex.org/W2024538372","https://openalex.org/W2045870530","https://openalex.org/W2055227858","https://openalex.org/W2093957690","https://openalex.org/W2105183220","https://openalex.org/W2118498934","https://openalex.org/W2122027310","https://openalex.org/W2127717018","https://openalex.org/W2146875259","https://openalex.org/W2166591714","https://openalex.org/W4248506240"],"related_works":["https://openalex.org/W3014822659","https://openalex.org/W2117826006","https://openalex.org/W4362496757","https://openalex.org/W2051501574","https://openalex.org/W2124627279","https://openalex.org/W2050967184","https://openalex.org/W2566091814","https://openalex.org/W2114937328","https://openalex.org/W2148654711","https://openalex.org/W2608025327"],"abstract_inverted_index":{"Automatic":[0],"biometric":[1],"identification":[2,13],"based":[3],"on":[4],"fingerprints":[5],"is":[6,29,151],"still":[7],"one":[8,76],"of":[9,53,77,100,126,135,170],"the":[10,38,51,60,69,78,101,117,124,133,141,148,159,168],"most":[11,79],"reliable":[12],"method":[14,102],"in":[15,23,90,123,132,167],"criminal":[16],"and":[17,32,46,66,131,153],"forensic":[18],"applications.":[19],"A":[20],"critical":[21],"step":[22],"fingerprint":[24,40,64],"analysis":[25],"without":[26],"human":[27],"intervention":[28],"to":[30,115,139,172],"automatically":[31],"reliably":[33],"extract":[34],"singular":[35,43,82],"points":[36,44,83],"from":[37],"input":[39],"images.":[41],"These":[42],"(cores":[45],"deltas)":[47],"not":[48],"only":[49],"represent":[50],"characteristics":[52],"local":[54],"ridge":[55],"patterns":[56],"but":[57],"also":[58],"determine":[59],"topological":[61],"structure":[62],"(i.e.,":[63],"type)":[65],"largely":[67],"influence":[68],"orientation":[70,129],"field.":[71],"Poincare\u00bf":[72],"Index-based":[73],"methods":[74,87],"are":[75],"common":[80],"for":[81],"detection.":[84,118],"However,":[85],"these":[86],"usually":[88],"result":[89],"many":[91],"spurious":[92],"detections.":[93],"Therefore,":[94],"we":[95],"propose":[96],"an":[97],"enhanced":[98],"version":[99],"presented":[103],"by":[104],"Zhou":[105],"et":[106],"al.":[107],"[13]":[108],"that":[109,147],"introduced":[110],"a":[111,127,136],"feature":[112],"called":[113],"DORIC":[114,142],"improve":[116],"Our":[119],"principal":[120],"contribution":[121],"lies":[122],"adoption":[125],"smoothed":[128],"field":[130],"formulation":[134],"new":[137],"algorithm":[138,150],"analyze":[140],"feature.":[143],"Experimental":[144],"results":[145,157,162],"show":[146],"proposed":[149],"accurate":[152],"robust,":[154],"giving":[155],"better":[156],"than":[158],"best":[160],"reported":[161],"so":[163],"far,":[164],"with":[165],"improvements":[166],"range":[169],"5%":[171],"7%.":[173]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":5}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2025-10-10T00:00:00"}
