{"id":"https://openalex.org/W2123558122","doi":"https://doi.org/10.1109/igarss.2009.5417791","title":"A study on land cover classification based on HJ-1 CCD image","display_name":"A study on land cover classification based on HJ-1 CCD image","publication_year":2009,"publication_date":"2009-01-01","ids":{"openalex":"https://openalex.org/W2123558122","doi":"https://doi.org/10.1109/igarss.2009.5417791","mag":"2123558122"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2009.5417791","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2009.5417791","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"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/A5103039071","display_name":"Yuhuan Ren","orcid":"https://orcid.org/0009-0007-0724-5093"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210166112","display_name":"State Key Laboratory of Remote Sensing Science","ror":"https://ror.org/05wzjqa24","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210166112"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuhuan Ren","raw_affiliation_strings":["Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210166112"]},{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101","institution_ids":["https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100678286","display_name":"Yalan Liu","orcid":"https://orcid.org/0000-0002-1007-7541"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210166112","display_name":"State Key Laboratory of Remote Sensing Science","ror":"https://ror.org/05wzjqa24","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210166112"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yalan Liu","raw_affiliation_strings":["Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210166112"]},{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101","institution_ids":["https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018366475","display_name":"Junchuan Fan","orcid":"https://orcid.org/0000-0002-2933-5248"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210166112","display_name":"State Key Laboratory of Remote Sensing Science","ror":"https://ror.org/05wzjqa24","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210166112"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junchuan Fan","raw_affiliation_strings":["Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210166112"]},{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101","institution_ids":["https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072421102","display_name":"Hua Xu","orcid":"https://orcid.org/0000-0002-1781-6044"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210166112","display_name":"State Key Laboratory of Remote Sensing Science","ror":"https://ror.org/05wzjqa24","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210166112"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hua Xu","raw_affiliation_strings":["Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210166112"]},{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101","institution_ids":["https://openalex.org/I19820366"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103898827","display_name":"Ling Yi","orcid":"https://orcid.org/0000-0002-7861-0699"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210166112","display_name":"State Key Laboratory of Remote Sensing Science","ror":"https://ror.org/05wzjqa24","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210166112"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ling Yi","raw_affiliation_strings":["Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy and Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210166112"]},{"raw_affiliation_string":"Institute of Remote Sensing Applications, Chinese Academy of Sciences, P.O. BOX 9718, Beijing, China, 100101","institution_ids":["https://openalex.org/I19820366"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.13177699,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":null,"first_page":"III","last_page":"408"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13890","display_name":"Remote Sensing and Land Use","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"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/T13890","display_name":"Remote Sensing and Land Use","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"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/T13203","display_name":"Environmental Changes in China","score":0.9796000123023987,"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/T14051","display_name":"Regional Economic and Spatial Analysis","score":0.916700005531311,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/land-cover","display_name":"Land cover","score":0.806050181388855},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.7341070175170898},{"id":"https://openalex.org/keywords/cover","display_name":"Cover (algebra)","score":0.6768262386322021},{"id":"https://openalex.org/keywords/image-resolution","display_name":"Image resolution","score":0.6455787420272827},{"id":"https://openalex.org/keywords/contextual-image-classification","display_name":"Contextual image classification","score":0.6098734140396118},{"id":"https://openalex.org/keywords/constellation","display_name":"Constellation","score":0.5978598594665527},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5970518589019775},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.5473884344100952},{"id":"https://openalex.org/keywords/satellite-constellation","display_name":"Satellite constellation","score":0.441577285528183},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.3951159715652466},{"id":"https://openalex.org/keywords/land-use","display_name":"Land use","score":0.3424437642097473},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.34029442071914673},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.28713124990463257},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.07954049110412598}],"concepts":[{"id":"https://openalex.org/C2780648208","wikidata":"https://www.wikidata.org/wiki/Q3001793","display_name":"Land cover","level":3,"score":0.806050181388855},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.7341070175170898},{"id":"https://openalex.org/C2780428219","wikidata":"https://www.wikidata.org/wiki/Q16952335","display_name":"Cover (algebra)","level":2,"score":0.6768262386322021},{"id":"https://openalex.org/C205372480","wikidata":"https://www.wikidata.org/wiki/Q210521","display_name":"Image resolution","level":2,"score":0.6455787420272827},{"id":"https://openalex.org/C75294576","wikidata":"https://www.wikidata.org/wiki/Q5165192","display_name":"Contextual image classification","level":3,"score":0.6098734140396118},{"id":"https://openalex.org/C70352696","wikidata":"https://www.wikidata.org/wiki/Q8928","display_name":"Constellation","level":2,"score":0.5978598594665527},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5970518589019775},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.5473884344100952},{"id":"https://openalex.org/C2779784338","wikidata":"https://www.wikidata.org/wiki/Q967145","display_name":"Satellite constellation","level":3,"score":0.441577285528183},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.3951159715652466},{"id":"https://openalex.org/C4792198","wikidata":"https://www.wikidata.org/wiki/Q1165944","display_name":"Land use","level":2,"score":0.3424437642097473},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.34029442071914673},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.28713124990463257},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.07954049110412598},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C147176958","wikidata":"https://www.wikidata.org/wiki/Q77590","display_name":"Civil engineering","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"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":1,"locations":[{"id":"doi:10.1109/igarss.2009.5417791","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2009.5417791","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/13","score":0.7400000095367432,"display_name":"Climate action"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W2133341703","https://openalex.org/W2160846690","https://openalex.org/W2351139462","https://openalex.org/W2367243164","https://openalex.org/W2367398967","https://openalex.org/W2368055779","https://openalex.org/W7000253064"],"related_works":["https://openalex.org/W2385787340","https://openalex.org/W4224313018","https://openalex.org/W2394459062","https://openalex.org/W2392670398","https://openalex.org/W4221033466","https://openalex.org/W2355913771","https://openalex.org/W4225291832","https://openalex.org/W3209202847","https://openalex.org/W2377622301","https://openalex.org/W4207072648"],"abstract_inverted_index":{"Remote":[0],"sensing":[1],"technique":[2],"has":[3],"become":[4],"one":[5],"of":[6,72,92],"the":[7,20,62,69,89,102],"most":[8],"effective":[9],"means":[10],"to":[11,47,87,104],"acquire":[12],"land":[13,49,73,94],"cover":[14,50,74,95],"information.":[15],"The":[16],"CCD":[17,79],"cameras":[18],"onboard":[19],"environment":[21],"and":[22,25,38,81],"disaster":[23],"monitoring":[24],"forecasting":[26],"satellite":[27],"constellation":[28],"(HJ-1":[29],"satellites)":[30],"are":[31],"advanced":[32],"in":[33,58],"spatial":[34],"resolution,":[35],"image":[36,80],"coverage":[37],"revisit":[39],"frequency.":[40],"Thus,":[41],"it":[42],"can":[43],"be":[44],"very":[45],"efficient":[46],"do":[48],"classification":[51,75,96],"using":[52],"their":[53],"images.":[54],"Taking":[55],"Zhongshan":[56],"County":[57],"Guangxi":[59],"province":[60],"as":[61],"study":[63],"area,":[64],"this":[65,93,98],"paper":[66,99],"studies":[67],"on":[68,77],"best":[70],"method":[71,103],"based":[76],"HJ-1":[78],"other":[82],"assistant":[83],"data.":[84],"In":[85],"order":[86],"test":[88],"general":[90],"applicability":[91],"method,":[97],"also":[100],"applies":[101],"another":[105],"place.":[106]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
