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Biblioteca(s): |
Embrapa Acre; Embrapa Agrobiologia; Embrapa Agroindústria de Alimentos; Embrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Clima Temperado; Embrapa Gado de Leite; Embrapa Instrumentação; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Meio-Norte; Embrapa Milho e Sorgo; Embrapa Rondônia; Embrapa Roraima; Embrapa Semiárido; Embrapa Solos; Embrapa Unidades Centrais; Embrapa Uva e Vinho. MenosEmbrapa Acre; Embrapa Agrobiologia; Embrapa Agroindústria de Alimentos; Embrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Clima Temperado... Mostrar Todas |
Data corrente: |
14/09/2017 |
Data da última atualização: |
04/12/2017 |
Tipo da produção científica: |
Autoria/Organização/Edição de Livros |
Autoria: |
CARDOSO, M. J.; BASTOS, E. A.; ANDRADE JUNIOR, A. S. de; ATHAYDE SOBRINHO, C. (ed.). |
Afiliação: |
MILTON JOSE CARDOSO, CPAMN; EDSON ALVES BASTOS, CPAMN; ADERSON SOARES DE ANDRADE JUNIOR, CPAMN; CANDIDO ATHAYDE SOBRINHO, CPAMN. |
Título: |
Feijão-Caupi: o produtor pergunta, a Embrapa responde. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Brasília, DF: Embrapa, 2017. |
Páginas: |
244 p. |
Descrição Física: |
il |
Série: |
(Coleção 500 perguntas, 500 respostas). |
ISBN: |
978-85-7035-693-2 |
Idioma: |
Português |
Conteúdo: |
Este livro contém informações mais recentes sobre a cultura do feijão-caupi, mas dá ênfase ao sistema de produção. Nele são abordados vários temas, entre os quais se destacam: a semeadura de grãos na safra normal e questões atinentes ao feijão-caupi safrinha, cultivos consorciados do feijão-caupi utilizado na alimentação animal, a produção de sementes, a pós-colheita, a secagem e o armazenamento. |
Palavras-Chave: |
500 perguntas; 500 respostas; Caupi safrinha; Coleção; Consorciação; Ecofisiologia; Feijão-caupi; Manejo cultural; Melhoramento genético; Zoneamento de risco climático. |
Thesagro: |
Adubação; Armazenamento; Doença fungica; Feijão; Feijão de corda; Industrialização; Melhoramento; Nematoide; Pos-colheita; Praga; Secagem. |
Categoria do assunto: |
-- E Economia e Indústria Agrícola F Plantas e Produtos de Origem Vegetal Q Alimentos e Nutrição Humana |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/166086/1/-files-500p500r-feijao-caupi.epub
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/166168/1/500P500R-Feijao-caupi.pdf
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Marc: |
LEADER 01569nam a2200433 a 4500 001 2075578 005 2017-12-04 008 2017 bl uuuu 00u1 u #d 020 $a978-85-7035-693-2 100 1 $aCARDOSO, M. J. 245 $aFeijão-Caupi$bo produtor pergunta, a Embrapa responde. 260 $aBrasília, DF: Embrapa$c2017 300 $a244 p.$cil 490 $a(Coleção 500 perguntas, 500 respostas). 520 $aEste livro contém informações mais recentes sobre a cultura do feijão-caupi, mas dá ênfase ao sistema de produção. Nele são abordados vários temas, entre os quais se destacam: a semeadura de grãos na safra normal e questões atinentes ao feijão-caupi safrinha, cultivos consorciados do feijão-caupi utilizado na alimentação animal, a produção de sementes, a pós-colheita, a secagem e o armazenamento. 650 $aAdubação 650 $aArmazenamento 650 $aDoença fungica 650 $aFeijão 650 $aFeijão de corda 650 $aIndustrialização 650 $aMelhoramento 650 $aNematoide 650 $aPos-colheita 650 $aPraga 650 $aSecagem 653 $a500 perguntas 653 $a500 respostas 653 $aCaupi safrinha 653 $aColeção 653 $aConsorciação 653 $aEcofisiologia 653 $aFeijão-caupi 653 $aManejo cultural 653 $aMelhoramento genético 653 $aZoneamento de risco climático 700 1 $aBASTOS, E. A. 700 1 $aANDRADE JUNIOR, A. S. de 700 1 $aATHAYDE SOBRINHO, C.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Biblioteca(s): |
Embrapa Territorial. |
Data corrente: |
14/08/2020 |
Data da última atualização: |
17/08/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MARTINS, V. S.; KALEITA, A. L.; GELDER, B. K.; SILVEIRA, H. L. F. da; ABE, C. A. |
Afiliação: |
VITOR S. MARTINS, IOWA STATE UNIVERSITY; AMY L. KALEITA, IOWA STATE UNIVERSITY; BRIAN K. GELDER, IOWA STATE UNIVERSITY; HILTON LUIS FERRAZ DA SILVEIRA, CNPM; CAMILA A. ABE, UNIVERSITY OF WISCONSIN-MADISON. |
Título: |
Exploring multiscale object-based convolutional neural network (multi-OCNN) for remote sensing image classification at high spatial resolution. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
ISPRS Journal of Photogrammetry and Remote Sensing, v. 168, p. 56-73, oct. 2020. |
ISBN: |
0924-2716 |
DOI: |
https://doi.org/10.1016/j.isprsjprs.2020.08.004 |
Idioma: |
Inglês |
Conteúdo: |
Convolutional Neural Network (CNN) has been increasingly used for land cover mapping of remotely sensed imagery. However, large-area classification using traditional CNN is computationally expensive and produces coarse maps using a sliding window approach. To address this problem, object-based CNN (OCNN) becomes an alternative solution to improve classification performance. However, previous studies were mainly focused on urban areas or small scenes, and implementation of OCNN method is still needed for large-area classification over heterogeneous landscape. Additionally, the massive labeling of segmented objects requires a practical approach for less computation, including object analysis and multiple CNNs. This study presents a new multiscale OCNN (multi-OCNN) framework for large-scale land cover classification at 1-m resolution over 145,740 km2. Our approach consists of three main steps: (i) image segmentation, (ii) object analysis with skeleton-based algorithm, and (iii) application of multiple CNNs for final classification. Also, we developed a large benchmark dataset, called IowaNet, with 1 million labeled images and 10 classes. In our approach, multiscale CNNs were trained to capture the best contextual information during the semantic labeling of objects. Meanwhile, skeletonization algorithm provided morphological representation (?medial axis?) of objects to support the selection of convolutional locations for CNN predictions. In general, proposed multi-OCNN presented better classification accuracy (overall accuracy ~87.2%) compared to traditional patch-based CNN (81.6%) and fixed-input OCNN (82%). In addition, the results showed that this framework is 8.1 and 111.5 times faster than traditional pixel-wise CNN16 or CNN256, respectively. Multiple CNNs and object analysis have proved to be essential for accurate and fast classification. While multi-OCNN produced a high-level of spatial details in the land cover product, misclassification was observed for some classes, such as road versus buildings or shadow versus lake. Despite these minor drawbacks, our results also demonstrated the benefits of IowaNet training dataset in the model performance; overfitting process reduces as the number of samples increases. The limitations of multi-OCNN are partially explained by segmentation quality and limited number of spectral bands in the aerial data. With the advance of deep learning methods, this study supports the claim of multi-OCNN benefits for operational large-scale land cover product at 1-m resolution. MenosConvolutional Neural Network (CNN) has been increasingly used for land cover mapping of remotely sensed imagery. However, large-area classification using traditional CNN is computationally expensive and produces coarse maps using a sliding window approach. To address this problem, object-based CNN (OCNN) becomes an alternative solution to improve classification performance. However, previous studies were mainly focused on urban areas or small scenes, and implementation of OCNN method is still needed for large-area classification over heterogeneous landscape. Additionally, the massive labeling of segmented objects requires a practical approach for less computation, including object analysis and multiple CNNs. This study presents a new multiscale OCNN (multi-OCNN) framework for large-scale land cover classification at 1-m resolution over 145,740 km2. Our approach consists of three main steps: (i) image segmentation, (ii) object analysis with skeleton-based algorithm, and (iii) application of multiple CNNs for final classification. Also, we developed a large benchmark dataset, called IowaNet, with 1 million labeled images and 10 classes. In our approach, multiscale CNNs were trained to capture the best contextual information during the semantic labeling of objects. Meanwhile, skeletonization algorithm provided morphological representation (?medial axis?) of objects to support the selection of convolutional locations for CNN predictions. In general, proposed multi-OCNN presented... Mostrar Tudo |
Palavras-Chave: |
Aerial imagery; Convolutional neural network; Deep learning. |
Thesaurus NAL: |
Land cover. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03374naa a2200241 a 4500 001 2124365 005 2020-08-17 008 2020 bl uuuu u00u1 u #d 022 $a0924-2716 024 7 $ahttps://doi.org/10.1016/j.isprsjprs.2020.08.004$2DOI 100 1 $aMARTINS, V. S. 245 $aExploring multiscale object-based convolutional neural network (multi-OCNN) for remote sensing image classification at high spatial resolution.$h[electronic resource] 260 $c2020 520 $aConvolutional Neural Network (CNN) has been increasingly used for land cover mapping of remotely sensed imagery. However, large-area classification using traditional CNN is computationally expensive and produces coarse maps using a sliding window approach. To address this problem, object-based CNN (OCNN) becomes an alternative solution to improve classification performance. However, previous studies were mainly focused on urban areas or small scenes, and implementation of OCNN method is still needed for large-area classification over heterogeneous landscape. Additionally, the massive labeling of segmented objects requires a practical approach for less computation, including object analysis and multiple CNNs. This study presents a new multiscale OCNN (multi-OCNN) framework for large-scale land cover classification at 1-m resolution over 145,740 km2. Our approach consists of three main steps: (i) image segmentation, (ii) object analysis with skeleton-based algorithm, and (iii) application of multiple CNNs for final classification. Also, we developed a large benchmark dataset, called IowaNet, with 1 million labeled images and 10 classes. In our approach, multiscale CNNs were trained to capture the best contextual information during the semantic labeling of objects. Meanwhile, skeletonization algorithm provided morphological representation (?medial axis?) of objects to support the selection of convolutional locations for CNN predictions. In general, proposed multi-OCNN presented better classification accuracy (overall accuracy ~87.2%) compared to traditional patch-based CNN (81.6%) and fixed-input OCNN (82%). In addition, the results showed that this framework is 8.1 and 111.5 times faster than traditional pixel-wise CNN16 or CNN256, respectively. Multiple CNNs and object analysis have proved to be essential for accurate and fast classification. While multi-OCNN produced a high-level of spatial details in the land cover product, misclassification was observed for some classes, such as road versus buildings or shadow versus lake. Despite these minor drawbacks, our results also demonstrated the benefits of IowaNet training dataset in the model performance; overfitting process reduces as the number of samples increases. The limitations of multi-OCNN are partially explained by segmentation quality and limited number of spectral bands in the aerial data. With the advance of deep learning methods, this study supports the claim of multi-OCNN benefits for operational large-scale land cover product at 1-m resolution. 650 $aLand cover 653 $aAerial imagery 653 $aConvolutional neural network 653 $aDeep learning 700 1 $aKALEITA, A. L. 700 1 $aGELDER, B. K. 700 1 $aSILVEIRA, H. L. F. da 700 1 $aABE, C. A. 773 $tISPRS Journal of Photogrammetry and Remote Sensing$gv. 168, p. 56-73, oct. 2020.
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