{"id":"https://openalex.org/W4414036245","doi":"https://doi.org/10.1007/s10015-025-01061-x","title":"A study on dynamic retinal vessel evaluation using a compact near-infrared fundus imaging system","display_name":"A study on dynamic retinal vessel evaluation using a compact near-infrared fundus imaging system","publication_year":2025,"publication_date":"2025-09-06","ids":{"openalex":"https://openalex.org/W4414036245","doi":"https://doi.org/10.1007/s10015-025-01061-x"},"language":"en","primary_location":{"id":"doi:10.1007/s10015-025-01061-x","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s10015-025-01061-x","pdf_url":"https://link.springer.com/content/pdf/10.1007/s10015-025-01061-x.pdf","source":{"id":"https://openalex.org/S104439334","display_name":"Artificial Life and Robotics","issn_l":"1433-5298","issn":["1433-5298","1614-7456"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Artificial Life and Robotics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://link.springer.com/content/pdf/10.1007/s10015-025-01061-x.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5116764244","display_name":"Masaya Kinefuchi","orcid":null},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Masaya Kinefuchi","raw_affiliation_strings":["Graduate School of Science and Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Science and Engineering, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan","institution_ids":["https://openalex.org/I159385669"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014671602","display_name":"Norio Iijima","orcid":null},"institutions":[{"id":"https://openalex.org/I79072001","display_name":"International University of Health and Welfare","ror":"https://ror.org/053d3tv41","country_code":"JP","type":"education","lineage":["https://openalex.org/I79072001"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Norio Iijima","raw_affiliation_strings":["Center for Basic Medical Research, International University of Health and Welfare, 2600-1 Kitakanamaru, Ohtawara, Tochigi, 324-8501, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Basic Medical Research, International University of Health and Welfare, 2600-1 Kitakanamaru, Ohtawara, Tochigi, 324-8501, Japan","institution_ids":["https://openalex.org/I79072001"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078853590","display_name":"Hironari Takehara","orcid":"https://orcid.org/0000-0001-7689-1186"},"institutions":[{"id":"https://openalex.org/I75917431","display_name":"Nara Institute of Science and Technology","ror":"https://ror.org/05bhada84","country_code":"JP","type":"education","lineage":["https://openalex.org/I75917431"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hironari Takehara","raw_affiliation_strings":["Nara Advanced Imaging Technology, Co., Ltd., 8916-5 Takayama, Ikoma, Nara, 630-0101, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nara Advanced Imaging Technology, Co., Ltd., 8916-5 Takayama, Ikoma, Nara, 630-0101, Japan","institution_ids":["https://openalex.org/I75917431"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025399403","display_name":"Jun Ohta","orcid":"https://orcid.org/0000-0001-8194-9020"},"institutions":[{"id":"https://openalex.org/I75917431","display_name":"Nara Institute of Science and Technology","ror":"https://ror.org/05bhada84","country_code":"JP","type":"education","lineage":["https://openalex.org/I75917431"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Jun Ohta","raw_affiliation_strings":["Institute for Research Initiatives, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute for Research Initiatives, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan","institution_ids":["https://openalex.org/I75917431"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113468432","display_name":"Naoto Hara","orcid":null},"institutions":[{"id":"https://openalex.org/I79072001","display_name":"International University of Health and Welfare","ror":"https://ror.org/053d3tv41","country_code":"JP","type":"education","lineage":["https://openalex.org/I79072001"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Naoto Hara","raw_affiliation_strings":["Department of Orthoptics and Visual Sciences, International University of Health and Welfare, 2600-1 Kitakanamaru, Ohtawara, Tochigi, 324-8501, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Orthoptics and Visual Sciences, International University of Health and Welfare, 2600-1 Kitakanamaru, Ohtawara, Tochigi, 324-8501, Japan","institution_ids":["https://openalex.org/I79072001"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026567070","display_name":"Yasuaki Kamata","orcid":"https://orcid.org/0000-0002-5267-5849"},"institutions":[{"id":"https://openalex.org/I79072001","display_name":"International University of Health and Welfare","ror":"https://ror.org/053d3tv41","country_code":"JP","type":"education","lineage":["https://openalex.org/I79072001"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yasuaki Kamata","raw_affiliation_strings":["Department of Orthoptics and Visual Sciences, International University of Health and Welfare, 2600-1 Kitakanamaru, Ohtawara, Tochigi, 324-8501, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Orthoptics and Visual Sciences, International University of Health and Welfare, 2600-1 Kitakanamaru, Ohtawara, Tochigi, 324-8501, Japan","institution_ids":["https://openalex.org/I79072001"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056633060","display_name":"Chawan Koopipat","orcid":null},"institutions":[{"id":"https://openalex.org/I158708052","display_name":"Chulalongkorn University","ror":"https://ror.org/028wp3y58","country_code":"TH","type":"education","lineage":["https://openalex.org/I158708052"]}],"countries":["TH"],"is_corresponding":false,"raw_author_name":"Chawan Koopipat","raw_affiliation_strings":["Department of Imaging and Printing Technology, Chulalongkorn University, 254 Phayathai Road, Pathumwan, 10330, Bangkok, Thailand"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Imaging and Printing Technology, Chulalongkorn University, 254 Phayathai Road, Pathumwan, 10330, Bangkok, Thailand","institution_ids":["https://openalex.org/I158708052"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5105889834","display_name":"Masato Takahashi","orcid":null},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masato Takahashi","raw_affiliation_strings":["Graduate School of Informatics, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Informatics, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan","institution_ids":["https://openalex.org/I159385669"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5109934226","display_name":"Norimichi Tsumura","orcid":null},"institutions":[{"id":"https://openalex.org/I159385669","display_name":"Chiba University","ror":"https://ror.org/01hjzeq58","country_code":"JP","type":"education","lineage":["https://openalex.org/I159385669"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Norimichi Tsumura","raw_affiliation_strings":["Graduate School of Informatics, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Informatics, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan","institution_ids":["https://openalex.org/I159385669"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":9,"corresponding_author_ids":["https://openalex.org/A5116764244"],"corresponding_institution_ids":["https://openalex.org/I159385669"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":{"value":2390,"currency":"EUR","value_usd":2990},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.30007243,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"30","issue":"4","first_page":"715","last_page":"724"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11438","display_name":"Retinal Imaging and Analysis","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T11438","display_name":"Retinal Imaging and Analysis","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9939000010490417,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T10250","display_name":"Glaucoma and retinal disorders","score":0.989300012588501,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/fundus","display_name":"Fundus (uterus)","score":0.6771326065063477},{"id":"https://openalex.org/keywords/retinal","display_name":"Retinal","score":0.6727269887924194},{"id":"https://openalex.org/keywords/infrared","display_name":"Infrared","score":0.5795775055885315},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5713819861412048},{"id":"https://openalex.org/keywords/fundus-camera","display_name":"Fundus camera","score":0.41845250129699707},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3435077667236328},{"id":"https://openalex.org/keywords/ophthalmology","display_name":"Ophthalmology","score":0.2772163152694702},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.26760831475257874},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.14370715618133545},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.12267875671386719},{"id":"https://openalex.org/keywords/ophthalmoscopy","display_name":"Ophthalmoscopy","score":0.08380657434463501}],"concepts":[{"id":"https://openalex.org/C2776391266","wikidata":"https://www.wikidata.org/wiki/Q9612","display_name":"Fundus (uterus)","level":2,"score":0.6771326065063477},{"id":"https://openalex.org/C2780827179","wikidata":"https://www.wikidata.org/wiki/Q422001","display_name":"Retinal","level":2,"score":0.6727269887924194},{"id":"https://openalex.org/C158355884","wikidata":"https://www.wikidata.org/wiki/Q11388","display_name":"Infrared","level":2,"score":0.5795775055885315},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5713819861412048},{"id":"https://openalex.org/C2908868075","wikidata":"https://www.wikidata.org/wiki/Q1144413","display_name":"Fundus camera","level":4,"score":0.41845250129699707},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3435077667236328},{"id":"https://openalex.org/C118487528","wikidata":"https://www.wikidata.org/wiki/Q161437","display_name":"Ophthalmology","level":1,"score":0.2772163152694702},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.26760831475257874},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.14370715618133545},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.12267875671386719},{"id":"https://openalex.org/C2780623050","wikidata":"https://www.wikidata.org/wiki/Q837188","display_name":"Ophthalmoscopy","level":3,"score":0.08380657434463501}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s10015-025-01061-x","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s10015-025-01061-x","pdf_url":"https://link.springer.com/content/pdf/10.1007/s10015-025-01061-x.pdf","source":{"id":"https://openalex.org/S104439334","display_name":"Artificial Life and Robotics","issn_l":"1433-5298","issn":["1433-5298","1614-7456"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Artificial Life and Robotics","raw_type":"journal-article"},{"id":"pmh:oai:irdb.nii.ac.jp:01146:0007245263","is_oa":true,"landing_page_url":"https://naist.repo.nii.ac.jp/records/2001325","pdf_url":null,"source":{"id":"https://openalex.org/S7407056385","display_name":"Institutional Repositories DataBase (IRDB)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I184597095","host_organization_name":"National Institute of Informatics","host_organization_lineage":["https://openalex.org/I184597095"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Artificial Life and Robotics","raw_type":"journal article"}],"best_oa_location":{"id":"doi:10.1007/s10015-025-01061-x","is_oa":true,"landing_page_url":"https://doi.org/10.1007/s10015-025-01061-x","pdf_url":"https://link.springer.com/content/pdf/10.1007/s10015-025-01061-x.pdf","source":{"id":"https://openalex.org/S104439334","display_name":"Artificial Life and Robotics","issn_l":"1433-5298","issn":["1433-5298","1614-7456"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Artificial Life and Robotics","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4414036245.pdf","grobid_xml":"https://content.openalex.org/works/W4414036245.grobid-xml"},"referenced_works_count":19,"referenced_works":["https://openalex.org/W1984554603","https://openalex.org/W1990596611","https://openalex.org/W2019679551","https://openalex.org/W2034530918","https://openalex.org/W2048710758","https://openalex.org/W2049359126","https://openalex.org/W2055738078","https://openalex.org/W2078239496","https://openalex.org/W2099540110","https://openalex.org/W2141460031","https://openalex.org/W2150726720","https://openalex.org/W2150769593","https://openalex.org/W2151103935","https://openalex.org/W2268705759","https://openalex.org/W2966264315","https://openalex.org/W3020854777","https://openalex.org/W4225386218","https://openalex.org/W4225974963","https://openalex.org/W4229080564"],"related_works":["https://openalex.org/W4377241681","https://openalex.org/W71412249","https://openalex.org/W3177483898","https://openalex.org/W4313238177","https://openalex.org/W4234283019","https://openalex.org/W2381116345","https://openalex.org/W3007291144","https://openalex.org/W2034342627","https://openalex.org/W2354390646","https://openalex.org/W906550598"],"abstract_inverted_index":{"Abstract":[0],"This":[1],"study":[2],"proposes":[3],"a":[4,32,107,154],"compact,":[5],"low-cost":[6],"near-infrared":[7],"fundus":[8],"imaging":[9],"system":[10,122,134,152],"that":[11,132],"addresses":[12],"the":[13,81,88,102,111,116,121,133,150,170,182],"limitations":[14],"of":[15,76,115,172],"conventional":[16,142],"large":[17,143],"and":[18,23,43,59,84,87,144,174],"expensive":[19,145],"devices,":[20],"enabling":[21],"non-invasive":[22,157],"non-mydriatic":[24],"retinal":[25,77,103],"evaluation.":[26],"Retinal":[27],"videos":[28],"were":[29,62],"acquired":[30,71],"using":[31,46,147],"monochrome":[33],"camera,":[34],"followed":[35],"by":[36],"motion":[37],"correction":[38],"based":[39],"on":[40],"template":[41],"matching,":[42],"vessel":[44,54,68],"enhancement":[45],"an":[47],"isotropic":[48],"wavelet":[49],"transform.":[50],"Time-series":[51],"changes":[52,66],"in":[53,67],"diameter,":[55],"arteriovenous":[56],"ratio":[57],"(AVR),":[58],"pulse":[60,104],"waveforms":[61,105],"extracted":[63],"from":[64,93],"time-series":[65],"diameter.":[69],"The":[70],"images":[72],"enabled":[73],"clear":[74],"visualization":[75],"structures,":[78],"such":[79],"as":[80],"optic":[82],"disc":[83],"blood":[85],"vessels,":[86],"measured":[89],"AVR":[90],"values":[91],"ranged":[92],"0.67":[94],"to":[95,168,180],"0.88":[96],"across":[97],"five":[98],"healthy":[99],"participants.":[100],"Furthermore,":[101],"showed":[106],"weak":[108],"correlation":[109],"with":[110],"average":[112],"inter-peak":[113],"intervals":[114],"fingertip":[117],"photoplethysmography":[118],"signals,":[119],"suggesting":[120],"can":[123],"capture":[124],"cardiac-induced":[125],"periodicity.":[126],"These":[127],"preliminary":[128],"findings":[129],"also":[130],"suggest":[131],"has":[135],"potential":[136],"for":[137,160],"extracting":[138],"physiological":[139],"information.":[140],"Unlike":[141],"devices":[146],"visible":[148],"light,":[149],"proposed":[151],"offers":[153],"less":[155],"burdensome,":[156],"alternative":[158],"suitable":[159],"home-based":[161],"applications.":[162],"In":[163],"future":[164],"work,":[165],"we":[166],"aim":[167],"increase":[169],"number":[171],"participants":[173],"conduct":[175],"more":[176],"clinically":[177],"oriented":[178],"studies":[179],"validate":[181],"system.":[183]},"counts_by_year":[],"updated_date":"2026-06-13T06:13:01.061226","created_date":"2025-10-10T00:00:00"}