{"id":"https://openalex.org/W2153477408","doi":"https://doi.org/10.1109/robio.2013.6739727","title":"A new effective algorithm for iris location","display_name":"A new effective algorithm for iris location","publication_year":2013,"publication_date":"2013-12-01","ids":{"openalex":"https://openalex.org/W2153477408","doi":"https://doi.org/10.1109/robio.2013.6739727","mag":"2153477408"},"language":"en","primary_location":{"id":"doi:10.1109/robio.2013.6739727","is_oa":false,"landing_page_url":"https://doi.org/10.1109/robio.2013.6739727","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Conference on Robotics and Biomimetics (ROBIO)","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/A5011786764","display_name":"Lijun Zhou","orcid":"https://orcid.org/0000-0002-7568-6903"},"institutions":[{"id":"https://openalex.org/I76214153","display_name":"Lanzhou University","ror":"https://ror.org/01mkqqe32","country_code":"CN","type":"education","lineage":["https://openalex.org/I76214153"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Lijun Zhou","raw_affiliation_strings":["School of Science and Engineering, Lanzhou University, Lanzhou, CHINA"],"affiliations":[{"raw_affiliation_string":"School of Science and Engineering, Lanzhou University, Lanzhou, CHINA","institution_ids":["https://openalex.org/I76214153"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042455990","display_name":"Yide Ma","orcid":"https://orcid.org/0000-0001-6098-7853"},"institutions":[{"id":"https://openalex.org/I76214153","display_name":"Lanzhou University","ror":"https://ror.org/01mkqqe32","country_code":"CN","type":"education","lineage":["https://openalex.org/I76214153"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yide Ma","raw_affiliation_strings":["School of Science and Engineering, Lanzhou University, Lanzhou, CHINA"],"affiliations":[{"raw_affiliation_string":"School of Science and Engineering, Lanzhou University, Lanzhou, CHINA","institution_ids":["https://openalex.org/I76214153"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101683469","display_name":"Jing Lian","orcid":"https://orcid.org/0000-0002-3947-7215"},"institutions":[{"id":"https://openalex.org/I76214153","display_name":"Lanzhou University","ror":"https://ror.org/01mkqqe32","country_code":"CN","type":"education","lineage":["https://openalex.org/I76214153"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jing Lian","raw_affiliation_strings":["School of Science and Engineering, Lanzhou University, Lanzhou, CHINA"],"affiliations":[{"raw_affiliation_string":"School of Science and Engineering, Lanzhou University, Lanzhou, CHINA","institution_ids":["https://openalex.org/I76214153"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101671584","display_name":"Zhaobin Wang","orcid":"https://orcid.org/0000-0002-7059-9907"},"institutions":[{"id":"https://openalex.org/I76214153","display_name":"Lanzhou University","ror":"https://ror.org/01mkqqe32","country_code":"CN","type":"education","lineage":["https://openalex.org/I76214153"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhaobin Wang","raw_affiliation_strings":["School of Science and Engineering, Lanzhou University, Lanzhou, CHINA"],"affiliations":[{"raw_affiliation_string":"School of Science and Engineering, Lanzhou University, Lanzhou, CHINA","institution_ids":["https://openalex.org/I76214153"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5011786764"],"corresponding_institution_ids":["https://openalex.org/I76214153"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.1800984,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"3","issue":null,"first_page":"1790","last_page":"1795"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10828","display_name":"Biometric Identification and Security","score":0.9998000264167786,"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":0.9998000264167786,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/iris","display_name":"IRIS (biosensor)","score":0.7567853927612305},{"id":"https://openalex.org/keywords/iris-recognition","display_name":"Iris recognition","score":0.6937141418457031},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6642943024635315},{"id":"https://openalex.org/keywords/initialization","display_name":"Initialization","score":0.6550259590148926},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6232917904853821},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5998239517211914},{"id":"https://openalex.org/keywords/boundary","display_name":"Boundary (topology)","score":0.5834186673164368},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5134128332138062},{"id":"https://openalex.org/keywords/orientation","display_name":"Orientation (vector space)","score":0.46226704120635986},{"id":"https://openalex.org/keywords/active-contour-model","display_name":"Active contour model","score":0.4490464925765991},{"id":"https://openalex.org/keywords/feature-vector","display_name":"Feature vector","score":0.4321513772010803},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.42104846239089966},{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.33002740144729614},{"id":"https://openalex.org/keywords/image-segmentation","display_name":"Image segmentation","score":0.32374244928359985},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.27119797468185425},{"id":"https://openalex.org/keywords/biometrics","display_name":"Biometrics","score":0.16828221082687378},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.09934768080711365}],"concepts":[{"id":"https://openalex.org/C2779503344","wikidata":"https://www.wikidata.org/wiki/Q5973514","display_name":"IRIS (biosensor)","level":3,"score":0.7567853927612305},{"id":"https://openalex.org/C112356035","wikidata":"https://www.wikidata.org/wiki/Q1672722","display_name":"Iris recognition","level":3,"score":0.6937141418457031},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6642943024635315},{"id":"https://openalex.org/C114466953","wikidata":"https://www.wikidata.org/wiki/Q6034165","display_name":"Initialization","level":2,"score":0.6550259590148926},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6232917904853821},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5998239517211914},{"id":"https://openalex.org/C62354387","wikidata":"https://www.wikidata.org/wiki/Q875399","display_name":"Boundary (topology)","level":2,"score":0.5834186673164368},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5134128332138062},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.46226704120635986},{"id":"https://openalex.org/C112353826","wikidata":"https://www.wikidata.org/wiki/Q127313","display_name":"Active contour model","level":4,"score":0.4490464925765991},{"id":"https://openalex.org/C83665646","wikidata":"https://www.wikidata.org/wiki/Q42139305","display_name":"Feature vector","level":2,"score":0.4321513772010803},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.42104846239089966},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.33002740144729614},{"id":"https://openalex.org/C124504099","wikidata":"https://www.wikidata.org/wiki/Q56933","display_name":"Image segmentation","level":3,"score":0.32374244928359985},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.27119797468185425},{"id":"https://openalex.org/C184297639","wikidata":"https://www.wikidata.org/wiki/Q177765","display_name":"Biometrics","level":2,"score":0.16828221082687378},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.09934768080711365},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1109/robio.2013.6739727","is_oa":false,"landing_page_url":"https://doi.org/10.1109/robio.2013.6739727","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Conference on Robotics and Biomimetics (ROBIO)","raw_type":"proceedings-article"},{"id":"pmh:oai:ir.lzu.edu.cn/:262010/183680","is_oa":false,"landing_page_url":"http://ir.lzu.edu.cn/handle/262010/183680","pdf_url":null,"source":{"id":"https://openalex.org/S4406923049","display_name":"Lanzhou University Institutional Repository","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"\u4f1a\u8bae\u8bba\u6587"},{"id":"pmh:oai:ir.lzu.edu.cn/:262010/304186","is_oa":false,"landing_page_url":"http://ir.lzu.edu.cn/handle/262010/304186","pdf_url":null,"source":{"id":"https://openalex.org/S4406923049","display_name":"Lanzhou University Institutional Repository","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conferences"},{"id":"pmh:oai:ir.lzu.edu.cn/:262010/309098","is_oa":false,"landing_page_url":"http://ir.lzu.edu.cn/handle/262010/309098","pdf_url":null,"source":{"id":"https://openalex.org/S4406923049","display_name":"Lanzhou University Institutional Repository","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conferences"},{"id":"pmh:oai:ir.lzu.edu.cn/:262010/353202","is_oa":false,"landing_page_url":"https://ieeexplore.ieee.org/document/6739727/","pdf_url":null,"source":{"id":"https://openalex.org/S4406923049","display_name":"Lanzhou University Institutional Repository","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conferences"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1516512487","https://openalex.org/W1974821667","https://openalex.org/W1994624550","https://openalex.org/W2086781126","https://openalex.org/W2102796633","https://openalex.org/W2134408546","https://openalex.org/W2142722911","https://openalex.org/W2145023731","https://openalex.org/W2171759622","https://openalex.org/W3145587643"],"related_works":["https://openalex.org/W2162640687","https://openalex.org/W2759939383","https://openalex.org/W2355560018","https://openalex.org/W2147209541","https://openalex.org/W4231710054","https://openalex.org/W2952386695","https://openalex.org/W2557390811","https://openalex.org/W3133795085","https://openalex.org/W3213945064","https://openalex.org/W2784078054"],"abstract_inverted_index":{"Iris":[0],"location":[1,18,51,71,165,176,187],"is":[2,28,170,177],"an":[3,7,11,79,103,126],"essential":[4],"step":[5],"and":[6,31,53,59,99,134],"important":[8],"part":[9],"in":[10],"iris":[12,17,70,88,93,105,127,151,173],"recognition":[13],"system.":[14],"However,":[15],"traditional":[16],"methods":[19,37],"often":[20],"involve":[21],"a":[22,68],"large":[23],"space":[24],"of":[25,87,118,137,167,186],"search,":[26],"which":[27],"calculation":[29],"wasting":[30],"sensitive":[32],"to":[33,41,49,83,114,124,148,180],"noise.":[34],"And":[35],"these":[36,63],"adopt":[38,143],"circular":[39],"orientation":[40],"locate":[42,125,149],"the":[43,55,85,92,97,132,144,150,164,172,181,184],"pupillary":[44],"boundary;":[45],"it":[46],"may":[47],"lead":[48],"inaccurate":[50],"result":[52,185],"influence":[54],"subsequent":[56],"feature":[57],"extraction":[58],"recognition.":[60],"To":[61],"address":[62],"problems,":[64],"this":[65,168],"paper":[66],"presents":[67],"precise":[69],"algorithm":[72,147],"based":[73],"on":[74],"Vector":[75],"Field":[76],"Convolution":[77],"(VFC,":[78],"improved":[80,145,190],"Snake":[81],"model)":[82],"improve":[84],"accuracy":[86,166],"location.":[89],"Firstly,":[90],"obtaining":[91],"area":[94],"completely":[95],"include":[96],"inside":[98],"outside":[100],"boundary":[101,129,153],"from":[102],"original":[104],"image,":[106],"then":[107],"using":[108],"minimum":[109],"average":[110],"grey":[111],"value":[112],"method":[113,169],"determine":[115],"initialization":[116],"contour":[117],"VFC":[119],"model":[120],"automatically,":[121],"so":[122],"as":[123],"inner":[128,174],"precisely":[130],"under":[131],"internal":[133],"external":[135],"force":[136],"active":[138],"contour.":[139],"At":[140],"last,":[141],"we":[142],"Daugman":[146],"outer":[152],"that":[154,163],"relatively":[155],"contains":[156],"little":[157],"texture":[158],"information.":[159],"Experimental":[160],"results":[161],"show":[162],"higher,":[171],"edge":[175],"much":[178],"closer":[179],"real":[182],"boundary,":[183],"have":[188],"been":[189],"significantly.":[191]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}