{"id":"https://openalex.org/W3193698334","doi":"https://doi.org/10.1109/access.2021.3105903","title":"Evaluation of Sentinel-1 and Sentinel-2 Feature Sets for Delineating Agricultural Fields in Heterogeneous Landscapes","display_name":"Evaluation of Sentinel-1 and Sentinel-2 Feature Sets for Delineating Agricultural Fields in Heterogeneous Landscapes","publication_year":2021,"publication_date":"2021-01-01","ids":{"openalex":"https://openalex.org/W3193698334","doi":"https://doi.org/10.1109/access.2021.3105903","mag":"3193698334"},"language":"en","primary_location":{"id":"doi:10.1109/access.2021.3105903","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3105903","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"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 Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2021.3105903","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5031302554","display_name":"Gideon Okpoti Tetteh","orcid":"https://orcid.org/0000-0001-5430-5967"},"institutions":[{"id":"https://openalex.org/I4210093792","display_name":"Johann Heinrich von Th\u00fcnen-Institut","ror":"https://ror.org/00mr84n67","country_code":"DE","type":"government","lineage":["https://openalex.org/I2801963157","https://openalex.org/I4210093792"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Gideon Okpoti Tetteh","raw_affiliation_strings":["Th\u00fcnen Institute of Farm Economics, Braunschweig, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Th\u00fcnen Institute of Farm Economics, Braunschweig, Germany","institution_ids":["https://openalex.org/I4210093792"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039552894","display_name":"Alexander Gocht","orcid":"https://orcid.org/0000-0002-8913-1538"},"institutions":[{"id":"https://openalex.org/I4210093792","display_name":"Johann Heinrich von Th\u00fcnen-Institut","ror":"https://ror.org/00mr84n67","country_code":"DE","type":"government","lineage":["https://openalex.org/I2801963157","https://openalex.org/I4210093792"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Alexander Gocht","raw_affiliation_strings":["Th\u00fcnen Institute of Farm Economics, Braunschweig, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Th\u00fcnen Institute of Farm Economics, Braunschweig, Germany","institution_ids":["https://openalex.org/I4210093792"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037555592","display_name":"Stefan Erasmi","orcid":"https://orcid.org/0000-0002-6393-6071"},"institutions":[{"id":"https://openalex.org/I4210093792","display_name":"Johann Heinrich von Th\u00fcnen-Institut","ror":"https://ror.org/00mr84n67","country_code":"DE","type":"government","lineage":["https://openalex.org/I2801963157","https://openalex.org/I4210093792"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Stefan Erasmi","raw_affiliation_strings":["Th\u00fcnen Institute of Farm Economics, Braunschweig, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Th\u00fcnen Institute of Farm Economics, Braunschweig, Germany","institution_ids":["https://openalex.org/I4210093792"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083619097","display_name":"Marcel Schwieder","orcid":"https://orcid.org/0000-0003-2103-8828"},"institutions":[{"id":"https://openalex.org/I39343248","display_name":"Humboldt-Universit\u00e4t zu Berlin","ror":"https://ror.org/01hcx6992","country_code":"DE","type":"education","lineage":["https://openalex.org/I39343248"]},{"id":"https://openalex.org/I4210093792","display_name":"Johann Heinrich von Th\u00fcnen-Institut","ror":"https://ror.org/00mr84n67","country_code":"DE","type":"government","lineage":["https://openalex.org/I2801963157","https://openalex.org/I4210093792"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Marcel Schwieder","raw_affiliation_strings":["Humboldt University of Berlin, Berlin, Germany","Th\u00fcnen Institute of Farm Economics, Braunschweig, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Humboldt University of Berlin, Berlin, Germany","institution_ids":["https://openalex.org/I39343248"]},{"raw_affiliation_string":"Th\u00fcnen Institute of Farm Economics, Braunschweig, Germany","institution_ids":["https://openalex.org/I4210093792"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047627769","display_name":"Christopher Conrad","orcid":"https://orcid.org/0000-0002-0807-7059"},"institutions":[{"id":"https://openalex.org/I68956291","display_name":"Martin Luther University Halle-Wittenberg","ror":"https://ror.org/05gqaka33","country_code":"DE","type":"education","lineage":["https://openalex.org/I68956291"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Christopher Conrad","raw_affiliation_strings":["Institute of Geosciences and Geography, Martin-Luther-University Halle-Wittenberg, 06099, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Geosciences and Geography, Martin-Luther-University Halle-Wittenberg, 06099, Germany","institution_ids":["https://openalex.org/I68956291"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":2.5362,"has_fulltext":false,"cited_by_count":23,"citation_normalized_percentile":{"value":0.88999963,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"9","issue":null,"first_page":"116702","last_page":"116719"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.9988999962806702,"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"}},"topics":[{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.9988999962806702,"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/T10226","display_name":"Land Use and Ecosystem Services","score":0.9976999759674072,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"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":0.9955000281333923,"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/segmentation","display_name":"Segmentation","score":0.7058327794075012},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.6207244396209717},{"id":"https://openalex.org/keywords/image-segmentation","display_name":"Image segmentation","score":0.5287527441978455},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.49759915471076965},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.4900025427341461},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4878385365009308},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.44615039229393005},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.43273937702178955},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.4289471507072449},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.18446633219718933}],"concepts":[{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.7058327794075012},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.6207244396209717},{"id":"https://openalex.org/C124504099","wikidata":"https://www.wikidata.org/wiki/Q56933","display_name":"Image segmentation","level":3,"score":0.5287527441978455},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.49759915471076965},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.4900025427341461},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4878385365009308},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.44615039229393005},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.43273937702178955},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.4289471507072449},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.18446633219718933},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/access.2021.3105903","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3105903","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"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 Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:151ca7f626a24d5ca137b32a4ff5ba2b","is_oa":true,"landing_page_url":"https://doaj.org/article/151ca7f626a24d5ca137b32a4ff5ba2b","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","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":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 9, Pp 116702-116719 (2021)","raw_type":"article"},{"id":"pmh:oai:www.openagrar.de:openagrar_mods_00074975","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ACCESS.2021.3105903","pdf_url":null,"source":{"id":"https://openalex.org/S7407055137","display_name":"OpenAgrar","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":null,"raw_type":"doc-type:article"}],"best_oa_location":{"id":"doi:10.1109/access.2021.3105903","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3105903","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"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 Access","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Life below water","score":0.4699999988079071,"id":"https://metadata.un.org/sdg/14"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":78,"referenced_works":["https://openalex.org/W1662323679","https://openalex.org/W1903469757","https://openalex.org/W1976129996","https://openalex.org/W1978617972","https://openalex.org/W1984792953","https://openalex.org/W1985154454","https://openalex.org/W1986738039","https://openalex.org/W2000179198","https://openalex.org/W2020565262","https://openalex.org/W2021781024","https://openalex.org/W2025745000","https://openalex.org/W2028240797","https://openalex.org/W2062191533","https://openalex.org/W2063273970","https://openalex.org/W2077524583","https://openalex.org/W2113283209","https://openalex.org/W2117551957","https://openalex.org/W2118463259","https://openalex.org/W2119566670","https://openalex.org/W2126351937","https://openalex.org/W2132927647","https://openalex.org/W2133160989","https://openalex.org/W2141166512","https://openalex.org/W2166516660","https://openalex.org/W2167594433","https://openalex.org/W2171599506","https://openalex.org/W2199031689","https://openalex.org/W2229287017","https://openalex.org/W2333990577","https://openalex.org/W2335798593","https://openalex.org/W2412247133","https://openalex.org/W2489738207","https://openalex.org/W2569923831","https://openalex.org/W2587456632","https://openalex.org/W2673581580","https://openalex.org/W2757637497","https://openalex.org/W2767953525","https://openalex.org/W2769599585","https://openalex.org/W2769642400","https://openalex.org/W2784466323","https://openalex.org/W2796164191","https://openalex.org/W2799805920","https://openalex.org/W2811103605","https://openalex.org/W2890237414","https://openalex.org/W2895854890","https://openalex.org/W2905254777","https://openalex.org/W2906198830","https://openalex.org/W2910326765","https://openalex.org/W2912262547","https://openalex.org/W2914237936","https://openalex.org/W2918101442","https://openalex.org/W2945667213","https://openalex.org/W2947716040","https://openalex.org/W2951982261","https://openalex.org/W2972965474","https://openalex.org/W2981849677","https://openalex.org/W2982943610","https://openalex.org/W2983217144","https://openalex.org/W2983376237","https://openalex.org/W2986456964","https://openalex.org/W2989983865","https://openalex.org/W3000536168","https://openalex.org/W3016256692","https://openalex.org/W3025172026","https://openalex.org/W3033405082","https://openalex.org/W3043831965","https://openalex.org/W3080107473","https://openalex.org/W3087810633","https://openalex.org/W3125307154","https://openalex.org/W3125947825","https://openalex.org/W3127060672","https://openalex.org/W3135858809","https://openalex.org/W3168486587","https://openalex.org/W6636950212","https://openalex.org/W6677184216","https://openalex.org/W6703238135","https://openalex.org/W6769377118","https://openalex.org/W6796897306"],"related_works":["https://openalex.org/W2085033728","https://openalex.org/W4285411112","https://openalex.org/W2171299904","https://openalex.org/W1647606319","https://openalex.org/W4390494008","https://openalex.org/W2922442631","https://openalex.org/W2053596378","https://openalex.org/W2168523118","https://openalex.org/W2073639911","https://openalex.org/W1522196789"],"abstract_inverted_index":{"The":[0],"Group":[1],"on":[2,57,79],"Earth":[3],"Observations":[4],"Global":[5],"Agricultural":[6],"Monitoring":[7],"Initiative":[8],"(GEOGLAM)":[9],"considers":[10],"agricultural":[11,32,46],"fields":[12,33,91,185,197,208,221],"as":[13],"one":[14],"of":[15,89,101,110,133],"the":[16,28,49,58,66,86,90,104,108,111,119,125,150,157,161,167,170,179,189,202,214,224,233],"essential":[17],"variables":[18],"that":[19],"can":[20,34],"be":[21,35],"derived":[22],"from":[23,37,70],"satellite":[24],"data.":[25],"We":[26,52],"evaluated":[27],"accuracy":[29,88,191,203,215,225],"at":[30,227],"which":[31],"delineated":[36,92],"Sentinel-1":[38],"(S1)":[39],"and":[40,72,99,114,140,145,152,218,240],"Sentinel-2":[41],"(S2)":[42],"images":[43,74],"in":[44,164,178,247],"different":[45],"landscapes":[47],"throughout":[48],"growing":[50],"season.":[51],"used":[53,237],"supervised":[54],"segmentation":[55,60,87,121,180,190,234],"based":[56],"multiresolution":[59],"(MRS)":[61],"algorithm":[62],"to":[63,160,174,238],"first":[64],"identify":[65],"optimal":[67,81],"feature":[68,82,106],"set":[69],"S1":[71,105],"S2":[73],"for":[75,195,206,219],"field":[76],"delineation.":[77],"Based":[78],"this":[80],"set,":[83],"we":[84],"analyzed":[85],"with":[93],"increasing":[94],"data":[95],"availability":[96],"between":[97],"March":[98],"October":[100],"2018.":[102],"From":[103],"sets,":[107],"combination":[109,132],"two":[112,115],"polarizations":[113],"radar":[116,151],"indices":[117,154],"attained":[118],"best":[120,126],"results.":[122,158],"For":[123,182],"S2,":[124],"results":[127],"were":[128,143],"achieved":[129],"using":[130,166],"a":[131,175,230,242],"all":[134],"bands":[135,142],"(coastal":[136],"aerosol,":[137],"water":[138],"vapor,":[139],"cirrus":[141],"excluded)":[144],"six":[146],"spectral":[147,153],"indices.":[148],"Combining":[149],"further":[155],"improved":[156],"Compared":[159],"single-period":[162],"dataset":[163,168],"March,":[165],"covering":[169],"whole":[171],"season":[172],"led":[173],"significant":[176],"increase":[177],"accuracy.":[181],"very":[183],"small":[184,196],"(<":[186],"0.5":[187],"ha),":[188,201,213,223],"obtained":[192],"was":[193,204,216,236],"27.02%,":[194],"(0.5":[198],"\u2013":[199,211],"1.5":[200],"57.65%,":[205],"medium":[207],"(1.5":[209],"ha":[210],"15":[212],"75.71%,":[217],"large":[220],"(>15":[222],"stood":[226],"68.31%.":[228],"As":[229],"use":[231],"case,":[232],"result":[235],"aggregate":[239],"improve":[241],"pixel-based":[243],"crop":[244],"type":[245],"map":[246],"Lower":[248],"Saxony,":[249],"Germany.":[250]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":5}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}