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Registro Completo |
Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
Data corrente: |
16/10/2023 |
Data da última atualização: |
16/10/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
HIDALGO CHÁVEZ, D. W.; SILVA, F. L. C. DA; PINTO, R. V.; CARVALHO, C. W. P. de; FREITAS-SILVA, O. |
Afiliação: |
DAVY WILLIAM HIDALGO CHÁVEZ, UFRRJ; FELIPE LEITE COELHO DA SILVA, UFRRJ; RENAN VICENTE PINTO, UFRRJ; CARLOS WANDERLEI PILER DE CARVALHO, CTAA; OTNIEL FREITAS SILVA, CTAA. |
Título: |
Streamlined approaches for image classification using principal component analysis and hierarchical clustering of extrudates from coffee and sorghum blends. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
CyTA: Journal of Food, v. 21, n. 1, p. 606-613, 2023. |
DOI: |
https://doi.org/10.1080/19476337.2023.2263513 |
Idioma: |
Inglês |
Conteúdo: |
This article describes simple methods to group images including principal component analysis (PCA) and hierarchical clustering of principal components (HCPC). Images of expanded and low expanded extrudates were processed using two optimization alternatives: a) image size reduction (from 2126 to 25 pixels); and b) grayscale conversion before size reduction. After applying PCA and HCPC, all tests yielded consistently similar results with the same PCA distribution and identical HCPC groups. Furthermore, expanded and low expanded extrudates formed groups with their respective peers. The RAM allocated to images and the time required to process them was reduced from 1727 Mb to less than 5 Mb and from ~ 2000s to just 0.1s, respectively. These results demonstrate the e feasibility of using these two simple multivariate statistical techniques for image classification. |
Palavras-Chave: |
Image classification. |
Thesaurus Nal: |
Image analysis; Principal component analysis. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1157235/1/Streamlined-approaches-for-image-classification-using-principal-component-analysis-and-hierarchical-clustering-of-extrudates-from-coffee-and-sorghum-b.pdf
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Marc: |
LEADER 01652naa a2200217 a 4500 001 2157235 005 2023-10-16 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1080/19476337.2023.2263513$2DOI 100 1 $aHIDALGO CHÁVEZ, D. W. 245 $aStreamlined approaches for image classification using principal component analysis and hierarchical clustering of extrudates from coffee and sorghum blends.$h[electronic resource] 260 $c2023 520 $aThis article describes simple methods to group images including principal component analysis (PCA) and hierarchical clustering of principal components (HCPC). Images of expanded and low expanded extrudates were processed using two optimization alternatives: a) image size reduction (from 2126 to 25 pixels); and b) grayscale conversion before size reduction. After applying PCA and HCPC, all tests yielded consistently similar results with the same PCA distribution and identical HCPC groups. Furthermore, expanded and low expanded extrudates formed groups with their respective peers. The RAM allocated to images and the time required to process them was reduced from 1727 Mb to less than 5 Mb and from ~ 2000s to just 0.1s, respectively. These results demonstrate the e feasibility of using these two simple multivariate statistical techniques for image classification. 650 $aImage analysis 650 $aPrincipal component analysis 653 $aImage classification 700 1 $aSILVA, F. L. C. DA 700 1 $aPINTO, R. V. 700 1 $aCARVALHO, C. W. P. de 700 1 $aFREITAS-SILVA, O. 773 $tCyTA: Journal of Food$gv. 21, n. 1, p. 606-613, 2023.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
07/03/1997 |
Data da última atualização: |
18/07/2018 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SANTOS, J. P.; PRATES, H. T.; WAQUIL, J. M.; OLIVEIRA, A. B. |
Afiliação: |
EMBRAPA-CNPMS. |
Título: |
Ação fumigante de terpenos sobre o Sitophilus zea mays. |
Ano de publicação: |
1994 |
Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE MILHO E SORGO, 20., 1994, Goiânia. Centro-Oeste: cinturão do milho e do sorgo no Brasil: resumos. Sete Lagoas: ABMS, 1994. p. 157. |
Páginas: |
p.157 |
Idioma: |
Português |
Palavras-Chave: |
Control; Controle; Grain; Graos; Insecticide; Inseticida natural; Maize; Pest; Terpenos. |
Thesagro: |
Armazenamento; Milho; Sitophilus Zeamais; Zea Mays. |
Thesaurus NAL: |
storage; terpenoids. |
Categoria do assunto: |
O Insetos e Entomologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/48798/1/Acao-fumigante-1.pdf
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Marc: |
LEADER 00931nam a2200325 a 4500 001 1474570 005 2018-07-18 008 1994 bl uuuu u00u1 u #d 100 1 $aSANTOS, J. P. 245 $aAção fumigante de terpenos sobre o Sitophilus zea mays.$h[electronic resource] 260 $aIn: CONGRESSO NACIONAL DE MILHO E SORGO, 20., 1994, Goiânia. Centro-Oeste: cinturão do milho e do sorgo no Brasil: resumos. Sete Lagoas: ABMS, 1994. p. 157.$c1994 300 $ap.157 650 $astorage 650 $aterpenoids 650 $aArmazenamento 650 $aMilho 650 $aSitophilus Zeamais 650 $aZea Mays 653 $aControl 653 $aControle 653 $aGrain 653 $aGraos 653 $aInsecticide 653 $aInseticida natural 653 $aMaize 653 $aPest 653 $aTerpenos 700 1 $aPRATES, H. T. 700 1 $aWAQUIL, J. M. 700 1 $aOLIVEIRA, A. B.
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