Grapevine yield estimation using image analysis for the variety Syrah

Detalhes bibliográficos
Autor(a) principal: Samá, Giuseppe
Data de Publicação: 2019
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/25414
Resumo: Mestrado em Engenharia de Viticultura e Enologia (Double Degree) / Instituto Superior de Agronomia. Universidade de Lisboa / Faculdade de Ciências. Universidade do Porto
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spelling Grapevine yield estimation using image analysis for the variety Syrahyield estimationprecision viticultureVinbotimage analysisSyrahMestrado em Engenharia de Viticultura e Enologia (Double Degree) / Instituto Superior de Agronomia. Universidade de Lisboa / Faculdade de Ciências. Universidade do PortoYield estimation in recent years is identified as one of more important topics in viticulture because it can lead to more efficiently managed vineyards producing wines of highly quality. Recently, to improve the efficiency of yield estimation, image analysis is becoming an important tool to collect detailed information from the vines regarding the yield. New technologies were developed for yield estimation using a new ground platform, such as VINBOT, using image analysis. This work was done in a vineyard of the “Instituto Superior de Agronomia”, with the aim to estimate the final yield, during the growing cycle 2019 of the variety “Syrah”, using images collected by the VINBOT robot. The images were captured with the RGB-D camera placed on the VINBOT robot in the vineyard and in addition, we obtained laboratory images using an RGB-D manual camera. In this work, the correlation of yield components between ground truth data and images data was evaluated. In addition, it was evaluate the projected bunches area in the images and the percentage of visible bunches not occluded by leaves and by other bunches. It was found a growth factor of bunches on the periods from pea-size to harvest. The efficacy to estimate bunch weight from the projected area was higher at maturation. The relationship between canopy porosity and exposed bunches showed for all the stages high and significant R2 indicating that we can use it to estimate bunches covered by leaves through image analysis. The percentage of visible bunches without the leaves occlusion and bunch occlusion was 29% at pea-size, 21% at veraison and 45% at maturation. It was estimated the final yield at pea-size, with an MA%E of 54%, at veraison and maturation were observed values of MA%E of 7% and 5%, respectively. Our results enable to conclude that the image analysis is an alternative to the traditional way to estimate the yields.n.Lopes, CarlosNovello, VittorinoRepositório da Universidade de LisboaSamá, Giuseppe2022-09-07T12:09:42Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/25414TID:203080831engSamá, G. - Grapevine yield estimation using image analysis for the variety Syrah. Lisboa: ISA, 2019, 71 p.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:54:58Zoai:www.repository.utl.pt:10400.5/25414Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:09:17.651077Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Grapevine yield estimation using image analysis for the variety Syrah
title Grapevine yield estimation using image analysis for the variety Syrah
spellingShingle Grapevine yield estimation using image analysis for the variety Syrah
Samá, Giuseppe
yield estimation
precision viticulture
Vinbot
image analysis
Syrah
title_short Grapevine yield estimation using image analysis for the variety Syrah
title_full Grapevine yield estimation using image analysis for the variety Syrah
title_fullStr Grapevine yield estimation using image analysis for the variety Syrah
title_full_unstemmed Grapevine yield estimation using image analysis for the variety Syrah
title_sort Grapevine yield estimation using image analysis for the variety Syrah
author Samá, Giuseppe
author_facet Samá, Giuseppe
author_role author
dc.contributor.none.fl_str_mv Lopes, Carlos
Novello, Vittorino
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Samá, Giuseppe
dc.subject.por.fl_str_mv yield estimation
precision viticulture
Vinbot
image analysis
Syrah
topic yield estimation
precision viticulture
Vinbot
image analysis
Syrah
description Mestrado em Engenharia de Viticultura e Enologia (Double Degree) / Instituto Superior de Agronomia. Universidade de Lisboa / Faculdade de Ciências. Universidade do Porto
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01T00:00:00Z
2022-09-07T12:09:42Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/25414
TID:203080831
url http://hdl.handle.net/10400.5/25414
identifier_str_mv TID:203080831
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Samá, G. - Grapevine yield estimation using image analysis for the variety Syrah. Lisboa: ISA, 2019, 71 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv s.n.
publisher.none.fl_str_mv s.n.
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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