{"id":"https://openalex.org/W2898206374","doi":"https://doi.org/10.1109/jstars.2018.2874684","title":"Multispectral Bathymetry via Linear Unmixing of the Benthic Reflectance","display_name":"Multispectral Bathymetry via Linear Unmixing of the Benthic Reflectance","publication_year":2018,"publication_date":"2018-10-24","ids":{"openalex":"https://openalex.org/W2898206374","doi":"https://doi.org/10.1109/jstars.2018.2874684","mag":"2898206374"},"language":"en","primary_location":{"id":"doi:10.1109/jstars.2018.2874684","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2018.2874684","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"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/A5100775357","display_name":"Yongming Liu","orcid":"https://orcid.org/0000-0003-3408-9253"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongming Liu","raw_affiliation_strings":["School of Geography and Planning, Sun Yat-sen University, Guangzhou, China"],"raw_orcid":"https://orcid.org/0000-0003-3408-9253","affiliations":[{"raw_affiliation_string":"School of Geography and Planning, Sun Yat-sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022528179","display_name":"Ruru Deng","orcid":"https://orcid.org/0000-0002-4560-2000"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruru Deng","raw_affiliation_strings":["Guangdong Engineering Research Center of Water Environment Remote Sensing Monitoring, Guangdong Provincial Key Laboratory of Urbanization and Geo-Simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Guangdong Engineering Research Center of Water Environment Remote Sensing Monitoring, Guangdong Provincial Key Laboratory of Urbanization and Geo-Simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100362041","display_name":"Jun Li","orcid":"https://orcid.org/0000-0003-1613-9448"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jun Li","raw_affiliation_strings":["Guangdong Provincial Key Laboratory of Urbanization and Geo-Simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China"],"raw_orcid":"https://orcid.org/0000-0003-1613-9448","affiliations":[{"raw_affiliation_string":"Guangdong Provincial Key Laboratory of Urbanization and Geo-Simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064860911","display_name":"Yan Qin","orcid":"https://orcid.org/0000-0002-4184-9022"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yan Qin","raw_affiliation_strings":["School of Geography and Planning, Sun Yat-sen University, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Geography and Planning, Sun Yat-sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016764904","display_name":"Longhai Xiong","orcid":null},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Longhai Xiong","raw_affiliation_strings":["School of Geography and Planning, Sun Yat-sen University, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Geography and Planning, Sun Yat-sen University, Guangzhou, China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101668036","display_name":"Qidong Chen","orcid":"https://orcid.org/0000-0002-2116-1108"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Qidong Chen","raw_affiliation_strings":["South China Sea Institute of Planning and Environmental Research, State Oceanic Administration, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"South China Sea Institute of Planning and Environmental Research, State Oceanic Administration, Guangzhou, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047337860","display_name":"Xulong Liu","orcid":"https://orcid.org/0000-0002-8777-7300"},"institutions":[{"id":"https://openalex.org/I4210147158","display_name":"Guangzhou Institute of Geography","ror":"https://ror.org/03tbxt129","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210147158"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xulong Liu","raw_affiliation_strings":["Guangzhou Institute of Geography, Guangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Guangzhou Institute of Geography, Guangzhou, China","institution_ids":["https://openalex.org/I4210147158"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1250,"currency":"USD","value_usd":1250},"apc_paid":null,"fwci":2.6953,"has_fulltext":false,"cited_by_count":33,"citation_normalized_percentile":{"value":0.89138927,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"11","issue":"11","first_page":"4349","last_page":"4363"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10032","display_name":"Marine and coastal ecosystems","score":0.991100013256073,"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":0.991100013256073,"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/T10341","display_name":"Coral and Marine Ecosystems Studies","score":0.9884999990463257,"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"}},{"id":"https://openalex.org/T10689","display_name":"Remote-Sensing Image Classification","score":0.9857000112533569,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/bathymetry","display_name":"Bathymetry","score":0.9763767719268799},{"id":"https://openalex.org/keywords/multispectral-image","display_name":"Multispectral image","score":0.8622305393218994},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.7957133054733276},{"id":"https://openalex.org/keywords/coral-reef","display_name":"Coral reef","score":0.5089399814605713},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.48765337467193604},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4161602258682251},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.41240882873535156},{"id":"https://openalex.org/keywords/oceanography","display_name":"Oceanography","score":0.167341947555542},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1603589653968811},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.07667729258537292}],"concepts":[{"id":"https://openalex.org/C174943157","wikidata":"https://www.wikidata.org/wiki/Q810826","display_name":"Bathymetry","level":2,"score":0.9763767719268799},{"id":"https://openalex.org/C173163844","wikidata":"https://www.wikidata.org/wiki/Q1761440","display_name":"Multispectral image","level":2,"score":0.8622305393218994},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.7957133054733276},{"id":"https://openalex.org/C79367842","wikidata":"https://www.wikidata.org/wiki/Q11292","display_name":"Coral reef","level":2,"score":0.5089399814605713},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.48765337467193604},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4161602258682251},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.41240882873535156},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.167341947555542},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1603589653968811},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.07667729258537292}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jstars.2018.2874684","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2018.2874684","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8799999952316284,"id":"https://metadata.un.org/sdg/14","display_name":"Life below water"}],"awards":[{"id":"https://openalex.org/G734794693","display_name":null,"funder_award_id":"2016A020222006","funder_id":"https://openalex.org/F4320335795","funder_display_name":"Science and Technology Planning Project of Guangdong Province"}],"funders":[{"id":"https://openalex.org/F4320335795","display_name":"Science and Technology Planning Project of Guangdong Province","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":62,"referenced_works":["https://openalex.org/W18557354","https://openalex.org/W233852153","https://openalex.org/W311350533","https://openalex.org/W956432429","https://openalex.org/W1503530273","https://openalex.org/W1594255204","https://openalex.org/W1647779468","https://openalex.org/W1969714219","https://openalex.org/W1972293418","https://openalex.org/W1973234487","https://openalex.org/W1984570510","https://openalex.org/W1995421053","https://openalex.org/W2001720788","https://openalex.org/W2008606151","https://openalex.org/W2010139542","https://openalex.org/W2017286408","https://openalex.org/W2019833542","https://openalex.org/W2026215279","https://openalex.org/W2027294099","https://openalex.org/W2043683651","https://openalex.org/W2060489269","https://openalex.org/W2068293337","https://openalex.org/W2068493270","https://openalex.org/W2070022366","https://openalex.org/W2075772123","https://openalex.org/W2076739620","https://openalex.org/W2077358591","https://openalex.org/W2077509829","https://openalex.org/W2078022721","https://openalex.org/W2082696980","https://openalex.org/W2082714424","https://openalex.org/W2083443605","https://openalex.org/W2086759180","https://openalex.org/W2089106161","https://openalex.org/W2089448857","https://openalex.org/W2094264433","https://openalex.org/W2103983685","https://openalex.org/W2104212942","https://openalex.org/W2107301689","https://openalex.org/W2110854180","https://openalex.org/W2117061508","https://openalex.org/W2131004210","https://openalex.org/W2142821935","https://openalex.org/W2144881411","https://openalex.org/W2151222354","https://openalex.org/W2151656099","https://openalex.org/W2152583725","https://openalex.org/W2155782014","https://openalex.org/W2169939759","https://openalex.org/W2183677072","https://openalex.org/W2373399168","https://openalex.org/W2411239331","https://openalex.org/W2462682234","https://openalex.org/W2571641218","https://openalex.org/W2604517815","https://openalex.org/W2733834276","https://openalex.org/W2736513656","https://openalex.org/W2767282504","https://openalex.org/W6600742386","https://openalex.org/W6610965305","https://openalex.org/W6679366379","https://openalex.org/W6929139359"],"related_works":["https://openalex.org/W2184765375","https://openalex.org/W2793357704","https://openalex.org/W773765100","https://openalex.org/W4386617716","https://openalex.org/W4313058144","https://openalex.org/W3152163876","https://openalex.org/W2738763808","https://openalex.org/W1972630154","https://openalex.org/W4318664220","https://openalex.org/W2139294397"],"abstract_inverted_index":{"Bathymetry":[0],"is":[1,10,252],"important":[2,15],"to":[3,30,43,213,224],"shallow":[4],"coral":[5,34],"reef":[6],"management.":[7],"Remote":[8],"sensing":[9,24,95],"one":[11],"of":[12,33,71,92,124,131,237,239,246],"the":[13,69,86,90,129,132,151,162,166,169,179,189,201,205,218,235,244],"most":[14],"techniques":[16],"for":[17,75,97,204],"mapping":[18,98],"bathymetry.":[19],"For":[20],"instance,":[21],"multispectral":[22,78,93,108],"remote":[23,94],"images":[25,96],"have":[26],"been":[27],"widely":[28],"used":[29],"map":[31,249],"bathymetry":[32,60,76],"reefs.":[35],"These":[36],"physically":[37],"based":[38],"methods,":[39],"which":[40],"are":[41,64],"able":[42],"retrieve":[44],"bathymetry,":[45,99,225],"water":[46,193],"column":[47],"inherent":[48],"optical":[49],"properties":[50],"(IOPs),":[51],"and":[52,128,146,178,191],"benthic":[53,73,247],"reflectance":[54,74],"simultaneously,":[55],"generally":[56],"can":[57,222],"achieve":[58],"good":[59],"results.":[61],"However,":[62],"there":[63],"strong":[65],"limitations":[66],"when":[67],"facing":[68],"scenarios":[70],"mixing":[72,87],"with":[77,120,138,142,168],"images.":[79],"In":[80],"this":[81,229],"study,":[82],"aiming":[83],"at":[84,207],"handling":[85],"phenomenon":[88],"on":[89,241],"use":[91],"we":[100,226],"propose":[101],"a":[102,121,147],"new":[103,115],"unmixing-based":[104,107],"method,":[105],"namely":[106],"optimization":[109],"process":[110],"exemplar":[111],"method":[112,116,164],"(UMOPE).":[113],"The":[114],"incorporates":[117],"endmember":[118],"variability":[119],"linear":[122],"combination":[123],"three":[125],"fixed":[126],"endmembers":[127],"relaxation":[130],"sum-to-one":[133],"constrained.":[134],"UMOPE":[135,206,251],"was":[136],"validated":[137],"two":[139],"existing":[140],"methods":[141],"in":[143,150,157],"situ":[144,158],"data":[145,159],"WorldView-2":[148],"image":[149],"South":[152],"China":[153],"Sea.":[154],"Results":[155],"from":[156,197,210,220,250],"show":[160],"that":[161],"proposed":[163],"performs":[165],"best,":[167],"smallest":[170],"absolute":[171],"root":[172],"mean":[173],"square":[174],"error":[175],"(RMSE)(2.26":[176],"m)":[177],"best":[180],"agreement":[181],"(R":[182],"<sup":[183],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[184],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[185],"=":[186],"0.91)":[187],"between":[188],"measured":[190],"estimated":[192],"depth.":[194],"Moreover,":[195],"results":[196],"WV-2":[198],"imagery":[199],"demonstrate":[200],"superior":[202],"performance":[203],"depth":[208],"range":[209],"about":[211],"9":[212],"26":[214],"m.":[215],"Furthermore,":[216],"since":[217],"errors":[219],"IOPs":[221],"propagate":[223],"further":[227],"take":[228],"issue":[230],"into":[231],"account":[232],"by":[233],"analyzing":[234],"rule":[236],"influence":[238],"bottom":[240],"IOPs.":[242],"Finally,":[243],"result":[245],"classification":[248],"shown.":[253]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
