{"id":"https://openalex.org/W4365140794","doi":"https://doi.org/10.3390/rs15082039","title":"Automatic Detection of Floating Macroalgae via Adaptive Thresholding Using Sentinel-2 Satellite Data with 10 m Spatial Resolution","display_name":"Automatic Detection of Floating Macroalgae via Adaptive Thresholding Using Sentinel-2 Satellite Data with 10 m Spatial Resolution","publication_year":2023,"publication_date":"2023-04-12","ids":{"openalex":"https://openalex.org/W4365140794","doi":"https://doi.org/10.3390/rs15082039"},"language":"en","primary_location":{"id":"doi:10.3390/rs15082039","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15082039","pdf_url":"https://www.mdpi.com/2072-4292/15/8/2039/pdf?version=1681300771","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2072-4292/15/8/2039/pdf?version=1681300771","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5019691232","display_name":"Dimas Angga Fakhri Muzhoffar","orcid":"https://orcid.org/0000-0002-2181-7218"},"institutions":[{"id":"https://openalex.org/I113306721","display_name":"Hiroshima University","ror":"https://ror.org/03t78wx29","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Dimas Angga Fakhri Muzhoffar","raw_affiliation_strings":["Graduate School of Advanced Science and Technology, Hiroshima University, Higashi-Hiroshima 739-8527, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Advanced Science and Technology, Hiroshima University, Higashi-Hiroshima 739-8527, Japan","institution_ids":["https://openalex.org/I113306721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042722733","display_name":"Yuji Sakuno","orcid":"https://orcid.org/0000-0001-7157-566X"},"institutions":[{"id":"https://openalex.org/I113306721","display_name":"Hiroshima University","ror":"https://ror.org/03t78wx29","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Yuji Sakuno","raw_affiliation_strings":["Graduate School of Advanced Science and Technology, Hiroshima University, Higashi-Hiroshima 739-8527, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Advanced Science and Technology, Hiroshima University, Higashi-Hiroshima 739-8527, Japan","institution_ids":["https://openalex.org/I113306721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050189987","display_name":"N. Taniguchi","orcid":"https://orcid.org/0000-0001-8544-1830"},"institutions":[{"id":"https://openalex.org/I113306721","display_name":"Hiroshima University","ror":"https://ror.org/03t78wx29","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Naokazu Taniguchi","raw_affiliation_strings":["Graduate School of Advanced Science and Technology, Hiroshima University, Higashi-Hiroshima 739-8527, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Advanced Science and Technology, Hiroshima University, Higashi-Hiroshima 739-8527, Japan","institution_ids":["https://openalex.org/I113306721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027237465","display_name":"Kunihiro Hamada","orcid":null},"institutions":[{"id":"https://openalex.org/I113306721","display_name":"Hiroshima University","ror":"https://ror.org/03t78wx29","country_code":"JP","type":"education","lineage":["https://openalex.org/I113306721"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kunihiro Hamada","raw_affiliation_strings":["Graduate School of Advanced Science and Technology, Hiroshima University, Higashi-Hiroshima 739-8527, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Advanced Science and Technology, Hiroshima University, Higashi-Hiroshima 739-8527, Japan","institution_ids":["https://openalex.org/I113306721"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072496183","display_name":"Hiromori Shimabukuro","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hiromori Shimabukuro","raw_affiliation_strings":["Fisheries Technology Institute, Japan Fisheries Research and Education Agency, Hatsukaichi 739-0452, Japan"],"affiliations":[{"raw_affiliation_string":"Fisheries Technology Institute, Japan Fisheries Research and Education Agency, Hatsukaichi 739-0452, Japan","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5009548699","display_name":"Masakazu Hori","orcid":"https://orcid.org/0000-0002-4677-9377"},"institutions":[{"id":"https://openalex.org/I4210117686","display_name":"Japan Fisheries Research and Education Agency","ror":"https://ror.org/02gmwvg31","country_code":"JP","type":"funder","lineage":["https://openalex.org/I4210117686"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masakazu Hori","raw_affiliation_strings":["Fisheries Technology Institute, Japan Fisheries Research and Education Agency, Yokohama 236-8648, Japan"],"affiliations":[{"raw_affiliation_string":"Fisheries Technology Institute, Japan Fisheries Research and Education Agency, Yokohama 236-8648, Japan","institution_ids":["https://openalex.org/I4210117686"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5042722733"],"corresponding_institution_ids":["https://openalex.org/I113306721"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":1.6104,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.81440874,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"15","issue":"8","first_page":"2039","last_page":"2039"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10032","display_name":"Marine and coastal ecosystems","score":0.9857000112533569,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10032","display_name":"Marine and coastal ecosystems","score":0.9857000112533569,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10643","display_name":"Marine and coastal plant biology","score":0.9745000004768372,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12073","display_name":"Isotope Analysis in Ecology","score":0.9726999998092651,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"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/thresholding","display_name":"Thresholding","score":0.8203930258750916},{"id":"https://openalex.org/keywords/normalized-difference-vegetation-index","display_name":"Normalized Difference Vegetation Index","score":0.6666523218154907},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.6548326015472412},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.6346423625946045},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.5883071422576904},{"id":"https://openalex.org/keywords/image-resolution","display_name":"Image resolution","score":0.5222607254981995},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.49609169363975525},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.42189767956733704},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2578428387641907},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.23441794514656067},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.1565486490726471},{"id":"https://openalex.org/keywords/oceanography","display_name":"Oceanography","score":0.08324414491653442},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.05548104643821716}],"concepts":[{"id":"https://openalex.org/C191178318","wikidata":"https://www.wikidata.org/wiki/Q2256906","display_name":"Thresholding","level":3,"score":0.8203930258750916},{"id":"https://openalex.org/C1549246","wikidata":"https://www.wikidata.org/wiki/Q718775","display_name":"Normalized Difference Vegetation Index","level":3,"score":0.6666523218154907},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6548326015472412},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.6346423625946045},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.5883071422576904},{"id":"https://openalex.org/C205372480","wikidata":"https://www.wikidata.org/wiki/Q210521","display_name":"Image resolution","level":2,"score":0.5222607254981995},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.49609169363975525},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.42189767956733704},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2578428387641907},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.23441794514656067},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.1565486490726471},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.08324414491653442},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.05548104643821716},{"id":"https://openalex.org/C132651083","wikidata":"https://www.wikidata.org/wiki/Q7942","display_name":"Climate change","level":2,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.3390/rs15082039","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15082039","pdf_url":"https://www.mdpi.com/2072-4292/15/8/2039/pdf?version=1681300771","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:4f66782bf78d4e85bf7503134ab00a71","is_oa":true,"landing_page_url":"https://doaj.org/article/4f66782bf78d4e85bf7503134ab00a71","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 15, Iss 8, p 2039 (2023)","raw_type":"article"},{"id":"pmh:oai:irdb.nii.ac.jp:07487:0006340790","is_oa":true,"landing_page_url":"https://fra.repo.nii.ac.jp/records/2002159","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing","raw_type":"journal article"},{"id":"pmh:oai:mdpi.com:/2072-4292/15/8/2039/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs15082039","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"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":"Remote Sensing; Volume 15; Issue 8; Pages: 2039","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs15082039","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15082039","pdf_url":"https://www.mdpi.com/2072-4292/15/8/2039/pdf?version=1681300771","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Life below water","id":"https://metadata.un.org/sdg/14","score":0.8700000047683716}],"awards":[{"id":"https://openalex.org/G2802207299","display_name":null,"funder_award_id":"JPJ008722","funder_id":"https://openalex.org/F4320322266","funder_display_name":"Ministry of Agriculture, Forestry and Fisheries"},{"id":"https://openalex.org/G7035620359","display_name":null,"funder_award_id":"JP19H04292","funder_id":"https://openalex.org/F4320322266","funder_display_name":"Ministry of Agriculture, Forestry and Fisheries"},{"id":"https://openalex.org/G7875843052","display_name":null,"funder_award_id":"JP19H04292","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G8673335280","display_name":null,"funder_award_id":"JPJ008722","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320322266","display_name":"Ministry of Agriculture, Forestry and Fisheries","ror":"https://ror.org/02zdz1m23"},{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4365140794.pdf"},"referenced_works_count":23,"referenced_works":["https://openalex.org/W1518917059","https://openalex.org/W1562382761","https://openalex.org/W1737366265","https://openalex.org/W1978617972","https://openalex.org/W1982141954","https://openalex.org/W2026049672","https://openalex.org/W2133059825","https://openalex.org/W2136758825","https://openalex.org/W2324990996","https://openalex.org/W2467306443","https://openalex.org/W2766615485","https://openalex.org/W3008228787","https://openalex.org/W3043213779","https://openalex.org/W3097504621","https://openalex.org/W3128443778","https://openalex.org/W3138154218","https://openalex.org/W3194667797","https://openalex.org/W3212365951","https://openalex.org/W4200532351","https://openalex.org/W4224326511","https://openalex.org/W4282980665","https://openalex.org/W4297238411","https://openalex.org/W4306404522"],"related_works":["https://openalex.org/W3207046288","https://openalex.org/W3023446922","https://openalex.org/W4324030030","https://openalex.org/W4392566681","https://openalex.org/W2614621130","https://openalex.org/W2547665164","https://openalex.org/W2044092692","https://openalex.org/W3103111272","https://openalex.org/W4289655544","https://openalex.org/W2383151488"],"abstract_inverted_index":{"Extensive":[0],"floating":[1,60,68,119,141,148,160],"macroalgae":[2,120,149,161],"have":[3,34],"drifted":[4],"from":[5,78],"the":[6,48,85,107,118,132,137,144,151,156],"East":[7],"China":[8],"Sea":[9],"to":[10,73,116],"Japan\u2019s":[11],"offshore":[12],"area,":[13],"and":[14,23,59,81,112,126,150],"field":[15],"observation":[16],"cannot":[17],"sufficiently":[18],"grasp":[19],"their":[20],"extensive":[21],"spatial":[22,103,145],"temporal":[24],"changes.":[25],"High-spatial-resolution":[26],"satellite":[27,45,97],"data,":[28],"which":[29],"contain":[30],"multiple":[31],"spectral":[32],"bands,":[33],"advanced":[35],"remote":[36],"sensing":[37],"analysis.":[38],"Several":[39],"indexes":[40],"for":[41,66,136,155],"recognizing":[42],"vegetation":[43,51],"in":[44,162],"images,":[46],"namely,":[47],"normalized":[49,54],"difference":[50,55],"index":[52,57,62],"(NDVI),":[53],"water":[56],"(NDWI),":[58],"algae":[61],"(FAI),":[63],"are":[64,71,165],"useful":[65],"detecting":[67],"macroalgae.":[69,142],"Thresholds":[70],"defined":[72],"separate":[74],"macroalgae-containing":[75],"image":[76,88],"pixels":[77],"other":[79],"pixels,":[80],"adaptive":[82,93],"thresholding":[83,94],"increases":[84],"reliability":[86],"of":[87,109,123,140,147,159],"segmentation.":[89],"This":[90,129],"study":[91],"proposes":[92],"using":[95],"Sentinel-2":[96],"data":[98],"with":[99],"a":[100],"10":[101],"m":[102],"resolution.":[104],"We":[105],"compare":[106],"abilities":[108],"Otsu\u2019s,":[110],"exclusion,":[111],"standard":[113],"deviation":[114],"methods":[115],"define":[117],"detection":[121,139,158],"thresholds":[122],"NDVI,":[124],"NDWI,":[125],"FAI":[127],"images.":[128],"comparison":[130],"determines":[131],"most":[133],"advantageous":[134],"method":[135],"automatic":[138,157],"Finally,":[143],"coverage":[146],"reproducible":[152],"combination":[153],"needed":[154],"Kagoshima,":[163],"Japan,":[164],"examined.":[166]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}
