{"id":"https://openalex.org/W4386317770","doi":"https://doi.org/10.1587/transinf.2022ofp0003","title":"Fish School Behaviour Classification for Optimal Feeding Using Dense Optical Flow","display_name":"Fish School Behaviour Classification for Optimal Feeding Using Dense Optical Flow","publication_year":2023,"publication_date":"2023-08-31","ids":{"openalex":"https://openalex.org/W4386317770","doi":"https://doi.org/10.1587/transinf.2022ofp0003"},"language":"en","primary_location":{"id":"doi:10.1587/transinf.2022ofp0003","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transinf.2022ofp0003","pdf_url":"https://www.jstage.jst.go.jp/article/transinf/E106.D/9/E106.D_2022OFP0003/_pdf","source":{"id":"https://openalex.org/S2486202937","display_name":"IEICE Transactions on Information and Systems","issn_l":"0916-8532","issn":["0916-8532","1745-1361"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Information and Systems","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.jstage.jst.go.jp/article/transinf/E106.D/9/E106.D_2022OFP0003/_pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5047630650","display_name":"Kazuki Fukae","orcid":null},"institutions":[{"id":"https://openalex.org/I43777268","display_name":"Nagasaki University","ror":"https://ror.org/058h74p94","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kazuki FUKAE","raw_affiliation_strings":["Graduate School of Engineering, Nagasaki University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Engineering, Nagasaki University","institution_ids":["https://openalex.org/I43777268"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113783470","display_name":"Tetsuo Imai","orcid":null},"institutions":[{"id":"https://openalex.org/I57930482","display_name":"Hiroshima City University","ror":"https://ror.org/001et4e78","country_code":"JP","type":"education","lineage":["https://openalex.org/I57930482"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tetsuo IMAI","raw_affiliation_strings":["Graduate School of Information Sciences, Hiroshima City University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Information Sciences, Hiroshima City University","institution_ids":["https://openalex.org/I57930482"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047236261","display_name":"K.I. Arai","orcid":"https://orcid.org/0000-0003-3226-3035"},"institutions":[{"id":"https://openalex.org/I43777268","display_name":"Nagasaki University","ror":"https://ror.org/058h74p94","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kenichi ARAI","raw_affiliation_strings":["Graduate School of Engineering, Nagasaki University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Engineering, Nagasaki University","institution_ids":["https://openalex.org/I43777268"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102320087","display_name":"Toru Kobayashi","orcid":null},"institutions":[{"id":"https://openalex.org/I43777268","display_name":"Nagasaki University","ror":"https://ror.org/058h74p94","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toru KOBAYASHI","raw_affiliation_strings":["Graduate School of Engineering, Nagasaki University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Engineering, Nagasaki University","institution_ids":["https://openalex.org/I43777268"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.862,"has_fulltext":true,"cited_by_count":10,"citation_normalized_percentile":{"value":0.6832114,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"E106.D","issue":"9","first_page":"1472","last_page":"1479"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12697","display_name":"Water Quality Monitoring Technologies","score":0.9909999966621399,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"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/T12697","display_name":"Water Quality Monitoring Technologies","score":0.9909999966621399,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/aquaculture","display_name":"Aquaculture","score":0.7223168611526489},{"id":"https://openalex.org/keywords/overfishing","display_name":"Overfishing","score":0.6567167639732361},{"id":"https://openalex.org/keywords/fishing","display_name":"Fishing","score":0.58037269115448},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.5520135760307312},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5477461814880371},{"id":"https://openalex.org/keywords/optical-flow","display_name":"Optical flow","score":0.5201095342636108},{"id":"https://openalex.org/keywords/fish-actinopterygii","display_name":"Fish <Actinopterygii>","score":0.5120885372161865},{"id":"https://openalex.org/keywords/fishery","display_name":"Fishery","score":0.5006999969482422},{"id":"https://openalex.org/keywords/histogram","display_name":"Histogram","score":0.47505924105644226},{"id":"https://openalex.org/keywords/agricultural-engineering","display_name":"Agricultural engineering","score":0.3237556219100952},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.24753615260124207},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.165605366230011},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.14902064204216003}],"concepts":[{"id":"https://openalex.org/C86909935","wikidata":"https://www.wikidata.org/wiki/Q188989","display_name":"Aquaculture","level":3,"score":0.7223168611526489},{"id":"https://openalex.org/C24061886","wikidata":"https://www.wikidata.org/wiki/Q331828","display_name":"Overfishing","level":3,"score":0.6567167639732361},{"id":"https://openalex.org/C514101110","wikidata":"https://www.wikidata.org/wiki/Q14373","display_name":"Fishing","level":2,"score":0.58037269115448},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5520135760307312},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5477461814880371},{"id":"https://openalex.org/C155542232","wikidata":"https://www.wikidata.org/wiki/Q736111","display_name":"Optical flow","level":3,"score":0.5201095342636108},{"id":"https://openalex.org/C2909208804","wikidata":"https://www.wikidata.org/wiki/Q127282","display_name":"Fish <Actinopterygii>","level":2,"score":0.5120885372161865},{"id":"https://openalex.org/C505870484","wikidata":"https://www.wikidata.org/wiki/Q180538","display_name":"Fishery","level":1,"score":0.5006999969482422},{"id":"https://openalex.org/C53533937","wikidata":"https://www.wikidata.org/wiki/Q185020","display_name":"Histogram","level":3,"score":0.47505924105644226},{"id":"https://openalex.org/C88463610","wikidata":"https://www.wikidata.org/wiki/Q194118","display_name":"Agricultural engineering","level":1,"score":0.3237556219100952},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.24753615260124207},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.165605366230011},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.14902064204216003},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1587/transinf.2022ofp0003","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transinf.2022ofp0003","pdf_url":"https://www.jstage.jst.go.jp/article/transinf/E106.D/9/E106.D_2022OFP0003/_pdf","source":{"id":"https://openalex.org/S2486202937","display_name":"IEICE Transactions on Information and Systems","issn_l":"0916-8532","issn":["0916-8532","1745-1361"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Information and Systems","raw_type":"journal-article"},{"id":"pmh:oai:irdb.nii.ac.jp:01160:0005941037","is_oa":true,"landing_page_url":"https://nagasaki-u.repo.nii.ac.jp/records/2000254","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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Information and Systems","raw_type":"journal article"}],"best_oa_location":{"id":"doi:10.1587/transinf.2022ofp0003","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transinf.2022ofp0003","pdf_url":"https://www.jstage.jst.go.jp/article/transinf/E106.D/9/E106.D_2022OFP0003/_pdf","source":{"id":"https://openalex.org/S2486202937","display_name":"IEICE Transactions on Information and Systems","issn_l":"0916-8532","issn":["0916-8532","1745-1361"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Information and Systems","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8734145634","display_name":"Nature Resilient Network-type Fish Cage Robots Adaptable to Environmental Changes","funder_award_id":"21H03558","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320325763","display_name":"Telecommunications Advancement Foundation","ror":"https://ror.org/05y77zf79"},{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4386317770.pdf","grobid_xml":"https://content.openalex.org/works/W4386317770.grobid-xml"},"referenced_works_count":2,"referenced_works":["https://openalex.org/W2987384895","https://openalex.org/W3200753688"],"related_works":["https://openalex.org/W2013459532","https://openalex.org/W3121968071","https://openalex.org/W2095208074","https://openalex.org/W2355311243","https://openalex.org/W2483819517","https://openalex.org/W2148347586","https://openalex.org/W2329569668","https://openalex.org/W4287921720","https://openalex.org/W4382630832","https://openalex.org/W1979041948"],"abstract_inverted_index":{"With":[0],"the":[1,23,31,35,53,59,63,73,84,100,106,115,145,154,164,175,178,184,194,207,214,221,224,236,245,248,252,262,265,269,283],"growing":[2],"global":[3],"demand":[4],"for":[5,41,105,126,223],"seafood,":[6],"sustainable":[7],"aquaculture":[8,32],"is":[9,34,123,134,274],"attracting":[10],"more":[11,91],"attention":[12],"than":[13],"conventional":[14],"natural":[15],"fishing,":[16],"which":[17,39,273],"causes":[18],"overfishing":[19],"and":[20,52,86,110,140,163,190,210,234,254],"damage":[21],"to":[22,98,136],"marine":[24],"environment.":[25],"However,":[26,132],"a":[27,45,96,124,160,218,275],"major":[28],"problem":[29],"facing":[30],"industry":[33],"cost":[36],"of":[37,44,55,65,75,88,102,147,166,177,196,217,226,238,247,264,277],"feeding,":[38],"accounts":[40],"about":[42],"60%":[43],"fishing":[46],"expenditure.":[47],"Excessive":[48],"feeding":[49,89,108],"increases":[50],"costs,":[51],"accumulation":[54],"residual":[56],"feed":[57,111],"on":[58,114],"seabed":[60],"negatively":[61],"impacts":[62],"quality":[64],"water":[66],"environments":[67],"(e.g.,":[68],"causing":[69],"red":[70],"tides).":[71],"Therefore,":[72,150],"importance":[74],"raising":[76],"fishes":[77],"efficiently":[78],"with":[79],"less":[80],"food":[81],"by":[82,192,229,250,268],"optimizing":[83],"timing":[85],"quantity":[87,112],"becomes":[90],"evident.":[92],"Thus,":[93],"we":[94],"developed":[95],"system":[97],"quantitate":[99,141],"amount":[101,165,176,195,225],"fish":[103,139,152,227],"activity":[104,143,228],"optimal":[107],"time":[109],"based":[113],"images":[116],"taken.":[117],"For":[118],"quantitation,":[119],"optical":[120,202],"flow":[121],"that":[122,282],"method":[125],"tracking":[127],"individual":[128,138],"objects":[129],"was":[130,172],"used.":[131],"it":[133],"difficult":[135],"track":[137],"their":[142],"in":[144,153,168,198,240],"presence":[146],"many":[148],"fishes.":[149],"all":[151],"filmed":[155],"screen":[156,171],"were":[157],"considered":[158],"as":[159,174,220],"single":[161],"school":[162,179],"change":[167,197],"an":[169],"entire":[170,185],"used":[173,213],"activity.":[180],"We":[181,212,243,260,280],"divided":[182],"specifically":[183],"image":[186],"into":[187,232],"fixed":[188],"regions":[189],"quantitated":[191],"vectorizing":[193],"each":[199,241],"region":[200],"using":[201],"flow.":[203],"A":[204],"vector":[205,271],"represents":[206],"moving":[208],"distance":[209],"direction.":[211],"numerical":[215],"data":[216],"histogram":[219],"indicator":[222,249],"dividing":[230],"them":[231],"classes":[233],"recording":[235],"number":[237],"occurrences":[239],"class.":[242],"verified":[244],"effectiveness":[246],"quantitating":[251],"eating":[253,256],"not":[255],"movements":[257],"during":[258],"feeding.":[259],"evaluated":[261],"performance":[263],"quantified":[266],"indicators":[267],"support":[270],"classification,":[272],"form":[276],"machine":[278],"learning.":[279],"confirmed":[281],"two":[284],"activities":[285],"can":[286],"be":[287],"correctly":[288],"classified.":[289]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1}],"updated_date":"2026-08-18T07:49:30.821534","created_date":"2025-10-10T00:00:00"}