{"id":"https://openalex.org/W4376280083","doi":"https://doi.org/10.3390/rs15102525","title":"An Approach for Joint Estimation of Grassland Leaf Area Index and Leaf Chlorophyll Content from UAV Hyperspectral Data","display_name":"An Approach for Joint Estimation of Grassland Leaf Area Index and Leaf Chlorophyll Content from UAV Hyperspectral Data","publication_year":2023,"publication_date":"2023-05-11","ids":{"openalex":"https://openalex.org/W4376280083","doi":"https://doi.org/10.3390/rs15102525"},"language":"en","primary_location":{"id":"doi:10.3390/rs15102525","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15102525","pdf_url":"https://www.mdpi.com/2072-4292/15/10/2525/pdf?version=1683796285","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/2072-4292/15/10/2525/pdf?version=1683796285","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Xiaohua Zhu","orcid":null},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaohua Zhu","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences, Beijing 100094, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]},{"raw_affiliation_string":"Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I19820366"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103339199","display_name":"Qian Yang","orcid":"https://orcid.org/0000-0002-9226-4462"},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qian Yang","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences, Beijing 100094, China","School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]},{"raw_affiliation_string":"Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I19820366"]},{"raw_affiliation_string":"School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100443894","display_name":"Xinyu Chen","orcid":"https://orcid.org/0000-0002-1780-1707"},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]},{"id":"https://openalex.org/I4210162962","display_name":"Beijing Academy of Science and Technology","ror":"https://ror.org/05ct4fn38","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210162962"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinyu Chen","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","College of Resources and Environment, Academy of Sciences, Beijing 101408, China","Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences, Beijing 100094, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]},{"raw_affiliation_string":"College of Resources and Environment, Academy of Sciences, Beijing 101408, China","institution_ids":["https://openalex.org/I4210162962"]},{"raw_affiliation_string":"Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I19820366"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111012209","display_name":"Zixiao Ding","orcid":null},"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/I4210137199","display_name":"Aerospace Information Research Institute","ror":"https://ror.org/0419fj215","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137199"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zixiao Ding","raw_affiliation_strings":["Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences, Beijing 100094, China","School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I4210137199","https://openalex.org/I19820366"]},{"raw_affiliation_string":"Key Laboratory of Quantitative Remote Sensing Information Technology, Chinese Academy of Sciences, Beijing 100094, China","institution_ids":["https://openalex.org/I19820366"]},{"raw_affiliation_string":"School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China","institution_ids":["https://openalex.org/I4210165038"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210137199"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":4.6989,"has_fulltext":true,"cited_by_count":22,"citation_normalized_percentile":{"value":0.94937645,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"15","issue":"10","first_page":"2525","last_page":"2525"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.9998999834060669,"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":0.9998999834060669,"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/T14365","display_name":"Leaf Properties and Growth Measurement","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.9919000267982483,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"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/hyperspectral-imaging","display_name":"Hyperspectral imaging","score":0.9084846377372742},{"id":"https://openalex.org/keywords/leaf-area-index","display_name":"Leaf area index","score":0.8387340903282166},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.6863133907318115},{"id":"https://openalex.org/keywords/vegetation","display_name":"Vegetation (pathology)","score":0.45799973607063293},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.45772773027420044},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4057786762714386},{"id":"https://openalex.org/keywords/botany","display_name":"Botany","score":0.15522724390029907},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.119408518075943}],"concepts":[{"id":"https://openalex.org/C159078339","wikidata":"https://www.wikidata.org/wiki/Q959005","display_name":"Hyperspectral imaging","level":2,"score":0.9084846377372742},{"id":"https://openalex.org/C25989453","wikidata":"https://www.wikidata.org/wiki/Q446746","display_name":"Leaf area index","level":2,"score":0.8387340903282166},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6863133907318115},{"id":"https://openalex.org/C2776133958","wikidata":"https://www.wikidata.org/wiki/Q7918366","display_name":"Vegetation (pathology)","level":2,"score":0.45799973607063293},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.45772773027420044},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4057786762714386},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.15522724390029907},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.119408518075943},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs15102525","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15102525","pdf_url":"https://www.mdpi.com/2072-4292/15/10/2525/pdf?version=1683796285","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:73334ff4f0ea42a8bd9eef591b1075c7","is_oa":true,"landing_page_url":"https://doaj.org/article/73334ff4f0ea42a8bd9eef591b1075c7","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":"Remote Sensing, Vol 15, Iss 10, p 2525 (2023)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/15/10/2525/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs15102525","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 10; Pages: 2525","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs15102525","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs15102525","pdf_url":"https://www.mdpi.com/2072-4292/15/10/2525/pdf?version=1683796285","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 in Land","id":"https://metadata.un.org/sdg/15","score":0.75}],"awards":[{"id":"https://openalex.org/G2351977277","display_name":null,"funder_award_id":"2022YFB3903501","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"}],"funders":[{"id":"https://openalex.org/F4320321133","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4376280083.pdf"},"referenced_works_count":42,"referenced_works":["https://openalex.org/W248389711","https://openalex.org/W585130729","https://openalex.org/W1978160572","https://openalex.org/W1989928114","https://openalex.org/W1994965727","https://openalex.org/W1998997260","https://openalex.org/W2000102737","https://openalex.org/W2012686349","https://openalex.org/W2019965926","https://openalex.org/W2054172243","https://openalex.org/W2056352756","https://openalex.org/W2066612219","https://openalex.org/W2074212361","https://openalex.org/W2078996926","https://openalex.org/W2109006150","https://openalex.org/W2111947859","https://openalex.org/W2121025745","https://openalex.org/W2137608957","https://openalex.org/W2145058632","https://openalex.org/W2145669224","https://openalex.org/W2151647593","https://openalex.org/W2161815745","https://openalex.org/W2163410149","https://openalex.org/W2253687289","https://openalex.org/W2506799294","https://openalex.org/W2609044008","https://openalex.org/W2624387057","https://openalex.org/W2793628454","https://openalex.org/W2884438462","https://openalex.org/W2891389166","https://openalex.org/W2905202001","https://openalex.org/W2913846004","https://openalex.org/W2914208851","https://openalex.org/W2918294784","https://openalex.org/W2980733782","https://openalex.org/W2988241847","https://openalex.org/W2990165672","https://openalex.org/W3168257347","https://openalex.org/W3204883663","https://openalex.org/W6636950212","https://openalex.org/W6664182548","https://openalex.org/W6796182822"],"related_works":["https://openalex.org/W2072166414","https://openalex.org/W3209970181","https://openalex.org/W2070598848","https://openalex.org/W2385371209","https://openalex.org/W4250051149","https://openalex.org/W2083270190","https://openalex.org/W32300172","https://openalex.org/W2115049406","https://openalex.org/W1972288805","https://openalex.org/W2470255193"],"abstract_inverted_index":{"Leaf":[0],"area":[1,25],"index":[2],"(LAI)":[3],"and":[4,26,33,53,78,86,96,123,128,148,156,165,190,204,220,241],"leaf":[5,24],"chlorophyll":[6,27],"content":[7],"(Cab)":[8],"are":[9],"two":[10],"important":[11],"indicators":[12],"of":[13,20,23,31,50,92,118,137,163,218],"vegetation":[14,73],"growth.":[15],"Due":[16],"to":[17,80,114,134,229],"the":[18,116,135,138,144,152,157,161,174,213,232,245],"high-coupling":[19],"spectral":[21],"signals":[22],"content,":[28],"simultaneous":[29],"retrieval":[30,142,217],"LAI":[32,52,85,121,127,147,164,219,240],"Cab":[34,54,87,124,129,166,221,242],"from":[35,55,168,222],"remotely":[36],"sensed":[37],"date":[38],"is":[39],"always":[40],"challenging.":[41],"In":[42],"this":[43],"paper,":[44],"an":[45],"approach":[46],"for":[47,84,102,195,215,239,247,250],"joint":[48],"estimation":[49,243],"grassland":[51],"unmanned":[56],"aerial":[57],"vehicle":[58],"(UAV)":[59],"hyperspectral":[60,72,170,223],"data":[61,171],"was":[62,99,112,178],"proposed.":[63],"Firstly,":[64],"based":[65,172],"on":[66,173],"a":[67,104,108,226],"PROSAIL":[68],"model,":[69],"15":[70],"typical":[71],"indices":[74],"(VIs)":[75],"were":[76,94,130],"calculated":[77,101],"analyzed":[79],"identify":[81],"optimal":[82],"VIs":[83,93,119],"estimation.":[88],"Secondly,":[89],"four":[90],"pairs":[91],"established":[95],"their":[97],"discreteness":[98],"also":[100],"building":[103],"two-dimension":[105],"matrix.":[106,140],"Thirdly,":[107],"two-layer":[109,139,175,233],"VI":[110,153,159,176],"matrix":[111,177,234],"generated":[113],"determine":[115],"relationship":[117],"with":[120,151],"values":[122],"values.":[125],"Finally,":[126],"jointly":[131],"retrieved":[132,167],"according":[133],"cells":[136],"The":[141,209],"reduced":[143],"cross-influence":[145],"between":[146],"Cab.":[149],"Compared":[150],"empirical":[154],"model":[155],"single-layer":[158],"matrix,":[160],"accuracy":[162],"UAV":[169],"significantly":[179],"improved":[180],"(for":[181],"LAI:":[182],"R2":[183,197],"=":[184,187,192,198,201,206],"0.73,":[185],"RMSE":[186,200],"0.91":[188],"m2/m2":[189],"u(SD)":[191,205],"0.82":[193],"m2/m2;":[194],"Cab:":[196],"0.79,":[199],"11.7":[202],"\u03bcg/cm2":[203],"10.84":[207],"\u03bcg/cm2).":[208],"proposed":[210],"method":[211,227],"has":[212],"potential":[214],"rapid":[216],"data.":[224],"As":[225],"similar":[228],"look-up":[230],"table,":[231],"can":[235],"be":[236],"used":[237],"directly":[238],"without":[244],"need":[246],"prior":[248],"measurements":[249],"training.":[251]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":11},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":3}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2023-05-13T00:00:00"}