{"id":"https://openalex.org/W4394576841","doi":"https://doi.org/10.31357/ait.v3i2.7351","title":"Performance of UAV-derived Normalized Difference Vegetation Index (NDVI) for Early Estimation of Rice Yield","display_name":"Performance of UAV-derived Normalized Difference Vegetation Index (NDVI) for Early Estimation of Rice Yield","publication_year":2024,"publication_date":"2024-04-08","ids":{"openalex":"https://openalex.org/W4394576841","doi":"https://doi.org/10.31357/ait.v3i2.7351"},"language":"en","primary_location":{"id":"doi:10.31357/ait.v3i2.7351","doi":"https://doi.org/10.31357/ait.v3i2.7351","is_oa":true,"landing_page_url":"http://dx.doi.org/10.31357/ait.v3i2.7351","pdf_url":"https://journals.sjp.ac.lk/index.php/ait/article/download/7351/5254","source":{"id":"https://openalex.org/S4210212379","display_name":"Advances in Technology","issn_l":"2773-7098","issn":["2773-7098"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319327","host_organization_name":"University of Sri Jayewardenepura","host_organization_lineage":["https://openalex.org/P4310319327"],"host_organization_lineage_names":["University of Sri Jayewardenepura"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Advances in Technology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://journals.sjp.ac.lk/index.php/ait/article/download/7351/5254","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5092073063","display_name":"P. P. Dharmaratne","orcid":"https://orcid.org/0009-0002-2739-6917","observed_orcids":["https://orcid.org/0009-0002-2739-6917"]},"institutions":[{"id":"https://openalex.org/I175606534","display_name":"Wayamba University of Sri Lanka","ror":"https://ror.org/043yykt67","country_code":"LK","type":"education","lineage":["https://openalex.org/I175606534"]}],"countries":["LK"],"is_corresponding":false,"raw_author_name":"P.P. Dharmaratne","raw_affiliation_strings":["Department of Horticulture and Landscape Gardening, Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, Gonawila 60170, Sri Lanka"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Horticulture and Landscape Gardening, Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, Gonawila 60170, Sri Lanka","institution_ids":["https://openalex.org/I175606534"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046118260","display_name":"W. M. U. K. Rathnayake","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"W.M.U.K. Rathnayake","raw_affiliation_strings":["Rice Research and Development Institute, Bathalagoda, Ibbagamuwa 60500, Sri Lanka"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Rice Research and Development Institute, Bathalagoda, Ibbagamuwa 60500, Sri Lanka","institution_ids":[]}]},{"author_position":"middle","author":{"id":null,"display_name":"A.D.A.J.K. Weerasinghe","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A.D.A.J.K. Weerasinghe","raw_affiliation_strings":["Retail Information Technologies Pvt Ltd, Bambalapitiya 00300, Sri Lanka"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Retail Information Technologies Pvt Ltd, Bambalapitiya 00300, Sri Lanka","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046683218","display_name":"Arachchige Surantha Ashan Salgadoe","orcid":"https://orcid.org/0000-0002-9962-9508","observed_orcids":["https://orcid.org/0000-0002-9962-9508"]},"institutions":[{"id":"https://openalex.org/I175606534","display_name":"Wayamba University of Sri Lanka","ror":"https://ror.org/043yykt67","country_code":"LK","type":"education","lineage":["https://openalex.org/I175606534"]}],"countries":["LK"],"is_corresponding":false,"raw_author_name":"A.S.A. Salgadoe","raw_affiliation_strings":["Department of Horticulture and Landscape Gardening, Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, Gonawila 60170, Sri Lanka"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Horticulture and Landscape Gardening, Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, Gonawila 60170, Sri Lanka","institution_ids":["https://openalex.org/I175606534"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.9990000128746033,"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":0.9990000128746033,"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/T10616","display_name":"Smart Agriculture and AI","score":0.00039999998989515007,"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/T12045","display_name":"Rice Cultivation and Yield Improvement","score":9.999999747378752e-05,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/rice-yield-prediction","display_name":"rice yield prediction","score":0.9520000219345093},{"id":"https://openalex.org/keywords/normalized-difference-vegetation-index","display_name":"NDVI","score":0.9169999957084656},{"id":"https://openalex.org/keywords/unmanned-aerial-vehicles","display_name":"unmanned aerial vehicles","score":0.765999972820282},{"id":"https://openalex.org/keywords/multispectral-imagery","display_name":"multispectral imagery","score":0.8240000009536743},{"id":"https://openalex.org/keywords/crop-vigor","display_name":"crop vigor","score":0.656000018119812},{"id":"https://openalex.org/keywords/booting-stage","display_name":"booting stage","score":0.8939999938011169},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.8550000190734863},{"id":"https://openalex.org/keywords/early-yield-prediction","display_name":"early yield prediction","score":0.718999981880188}],"concepts":[{"id":"https://openalex.org/C1549246","wikidata":"https://www.wikidata.org/wiki/Q718775","display_name":"Normalized Difference Vegetation Index","level":3,"score":0.9598866701126099},{"id":"https://openalex.org/C2780376076","wikidata":"https://www.wikidata.org/wiki/Q1499458","display_name":"Vegetation Index","level":4,"score":0.7778791189193726},{"id":"https://openalex.org/C78869512","wikidata":"https://www.wikidata.org/wiki/Q5378810","display_name":"Enhanced vegetation index","level":5,"score":0.6257139444351196},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.6144638061523438},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.5813632011413574},{"id":"https://openalex.org/C2777382242","wikidata":"https://www.wikidata.org/wiki/Q6017816","display_name":"Index (typography)","level":2,"score":0.550653874874115},{"id":"https://openalex.org/C2776133958","wikidata":"https://www.wikidata.org/wiki/Q7918366","display_name":"Vegetation (pathology)","level":2,"score":0.534062922000885},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.518701434135437},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.4488421678543091},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.4380941689014435},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.39359328150749207},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.2656216621398926},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.2566978931427002},{"id":"https://openalex.org/C25989453","wikidata":"https://www.wikidata.org/wiki/Q446746","display_name":"Leaf area index","level":2,"score":0.2127174437046051},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.18441426753997803},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0940379798412323},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.07775229215621948},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.050854235887527466},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.0},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.31357/ait.v3i2.7351","doi":"https://doi.org/10.31357/ait.v3i2.7351","is_oa":true,"landing_page_url":"http://dx.doi.org/10.31357/ait.v3i2.7351","pdf_url":"https://journals.sjp.ac.lk/index.php/ait/article/download/7351/5254","source":{"id":"https://openalex.org/S4210212379","display_name":"Advances in Technology","issn_l":"2773-7098","issn":["2773-7098"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319327","host_organization_name":"University of Sri Jayewardenepura","host_organization_lineage":["https://openalex.org/P4310319327"],"host_organization_lineage_names":["University of Sri Jayewardenepura"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Advances in Technology","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.31357/ait.v3i2.7351","doi":"https://doi.org/10.31357/ait.v3i2.7351","is_oa":true,"landing_page_url":"http://dx.doi.org/10.31357/ait.v3i2.7351","pdf_url":"https://journals.sjp.ac.lk/index.php/ait/article/download/7351/5254","source":{"id":"https://openalex.org/S4210212379","display_name":"Advances in Technology","issn_l":"2773-7098","issn":["2773-7098"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319327","host_organization_name":"University of Sri Jayewardenepura","host_organization_lineage":["https://openalex.org/P4310319327"],"host_organization_lineage_names":["University of Sri Jayewardenepura"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Advances in Technology","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","score":0.991100013256073,"display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4394576841.pdf","grobid_xml":"https://content.openalex.org/works/W4394576841.grobid-xml"},"referenced_works_count":14,"referenced_works":["https://openalex.org/W68108476","https://openalex.org/W181107242","https://openalex.org/W1967395374","https://openalex.org/W2053515681","https://openalex.org/W2133125644","https://openalex.org/W2146697484","https://openalex.org/W2329619569","https://openalex.org/W2698185760","https://openalex.org/W2886454194","https://openalex.org/W2901871662","https://openalex.org/W2908941153","https://openalex.org/W2916306081","https://openalex.org/W2949266588","https://openalex.org/W2950381058"],"related_works":["https://openalex.org/W2508180990","https://openalex.org/W4410183863","https://openalex.org/W3118537155","https://openalex.org/W4324030030","https://openalex.org/W3181549173","https://openalex.org/W4295814001","https://openalex.org/W2967868553","https://openalex.org/W2971505822","https://openalex.org/W3040221110","https://openalex.org/W2646675373"],"abstract_inverted_index":{"Traditionally,":[0],"the":[1,7,46,66,109,123,127,139,143,155,163,168,179],"rice":[2,77,91,140,164,180],"yield":[3,181],"is":[4,10,171],"measured":[5],"after":[6],"harvest,":[8],"which":[9],"too":[11],"late":[12],"then":[13],"to":[14,19,64,122,183],"revert":[15],"any":[16],"agronomic":[17],"practices":[18],"improve":[20],"yield.":[21,78,157],"The":[22,58,158],"aerial":[23],"spectral":[24],"reflectance":[25],"images":[26,81,85],"of":[27,43,50,60,68,115,178],"crops":[28,51,141],"captured":[29],"by":[30],"a":[31,73,89,172],"multispectral":[32],"camera":[33],"mounted":[34],"in":[35,108],"an":[36],"Unmanned":[37],"Aerial":[38],"Vehicle":[39],"(UAV)":[40],"are":[41],"capable":[42],"quantitatively":[44],"measuring":[45],"internal":[47],"physiological":[48],"condition":[49],"directly":[52],"associated":[53,153],"with":[54,154],"their":[55],"health":[56],"status.":[57],"aim":[59],"this":[61],"study":[62],"was":[63,106],"evaluate":[65],"performance":[67],"UAV-multispectral":[69],"image":[70],"derived-NDVI":[71],"as":[72],"method":[74],"for":[75,175],"estimating":[76],"Multispectral":[79],"drone":[80],"including":[82],"single":[83],"band":[84],"were":[86,146],"acquired":[87],"from":[88,138],"controlled":[90],"field":[92],"at":[93,131,142,167],"Rice":[94,102],"Research":[95],"and":[96,133,149],"Development":[97],"Institute":[98],"(RRDI),":[99],"Sri":[100],"Lanka.":[101],"variety":[103],"Bg":[104],"300":[105],"cultivated":[107],"Yala":[110],"season":[111],"under":[112],"four":[113],"levels":[114],"Nitrogen":[116],"(N)":[117],"fertilizer":[118],"treatment":[119],"plots.":[120],"According":[121],"regression":[124],"co-relation":[125],"analysis":[126],"derived":[128,159],"NDVI":[129,160],"values":[130,161],"15":[132],"25":[134],"m":[135],"flying":[136],"heights":[137],"booting":[144,169],"stage":[145,170],"moderately":[147],"(R2=0.65":[148],"R2=0.67,":[150],"p<0.05,":[151],"respectively)":[152],"actual":[156,184],"indicated":[162],"crop":[165],"vigor":[166],"useful":[173],"indicator":[174],"early":[176],"estimation":[177],"prior":[182],"harvest.":[185]},"counts_by_year":[],"updated_date":"2026-09-29T14:09:16.559479","created_date":"2024-04-09T00:00:00"}