|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
18/04/2005 |
Data da última atualização: |
17/01/2020 |
Autoria: |
CAMARGO NETO, J.; MEYER, G. E.; JONES, D. D. |
Afiliação: |
JOAO CAMARGO NETO, CNPTIA; GEORGE E. MEYER; DAVID D. JONES. |
Título: |
Advances in color image segmentation of plants for weed control. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
In: ASAE/CSAE ANNUAL INTERNATIONAL MEETING, 2004, Ottawa. Dynamic partnerships for an environmentally safe and healthy world. St. Joseph, MI: American Society of Agricultural Engineers, 2004. |
Páginas: |
p. 1-16. |
Idioma: |
Inglês |
Notas: |
Paper number: 043060. |
Conteúdo: |
Abstract. A new and improved unsupervised plant segmentation index (ExGExR) is introduced. ExGRxR performance was compared with the traditional excess green segmentation method (ExG), using Otsu's method for automatic threshold. Segmentation accuracies were measured with a quality index, using a ground truth target plant mask, hand-generated for each image. Statistical results showed that there were significant differences in performance with bare soil backgrounds during the first week for pigweed and velvetleaf. For corn stalk residue, there were significant differences for all species during the first week and also significant differences during the second week for pigweed and velvetleaf. Using wheat straw residue background, there were significant differences for all species all three weeks. In general, the algorithm performed better than the ExG index for segmenting plants from soil-residues background. |
Palavras-Chave: |
Análise de imagem; Color index; Índice de cor; Segmentação; Segmentation. |
Thesagro: |
Planta; Resíduo. |
Thesaurus Nal: |
Image analysis; No-tillage. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 01783nam a2200265 a 4500 001 1009026 005 2020-01-17 008 2004 bl uuuu u00u1 u #d 100 1 $aCAMARGO NETO, J. 245 $aAdvances in color image segmentation of plants for weed control.$h[electronic resource] 260 $aIn: ASAE/CSAE ANNUAL INTERNATIONAL MEETING, 2004, Ottawa. Dynamic partnerships for an environmentally safe and healthy world. St. Joseph, MI: American Society of Agricultural Engineers$c2004 300 $ap. 1-16. 500 $aPaper number: 043060. 520 $aAbstract. A new and improved unsupervised plant segmentation index (ExGExR) is introduced. ExGRxR performance was compared with the traditional excess green segmentation method (ExG), using Otsu's method for automatic threshold. Segmentation accuracies were measured with a quality index, using a ground truth target plant mask, hand-generated for each image. Statistical results showed that there were significant differences in performance with bare soil backgrounds during the first week for pigweed and velvetleaf. For corn stalk residue, there were significant differences for all species during the first week and also significant differences during the second week for pigweed and velvetleaf. Using wheat straw residue background, there were significant differences for all species all three weeks. In general, the algorithm performed better than the ExG index for segmenting plants from soil-residues background. 650 $aImage analysis 650 $aNo-tillage 650 $aPlanta 650 $aResíduo 653 $aAnálise de imagem 653 $aColor index 653 $aÍndice de cor 653 $aSegmentação 653 $aSegmentation 700 1 $aMEYER, G. E. 700 1 $aJONES, D. D.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registros recuperados : 46 | |
20. | | MEYER, G.; FAGGIN, J. M.; MOTA, D. M. da; GEHLEN, I. Dinâmicas de (re)ocupação de terras: a lógica patrimonialista e a área de influência da Rodovia Belém-Brasília no Nordeste paraense. Cadernos de Ciência e Tecnologia, Brasília, DF, v. 30, n. 1/3, p. 33-53, jan./dez. 2013Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Unidades Centrais. |
| |
Registros recuperados : 46 | |
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|