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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
10/01/2007 |
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Data da última atualização: |
04/10/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOTA, G. L. A.; FEITOSA, R. Q.; COUTINHO, H. L. C.; LIEDTKE, C. E.; MÜLLER, S; PAKZAD, K.; MEIRELLES, M. S. P. |
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Afiliação: |
Guilherme L. A. Mota, PUC-RIO/UERJ; Raul Q. Feitosa, PUC-RIO/UERJ; HEITOR LUIZ DA COSTA COUTINHO, CNPS; Claus-Eberhard Liedtke, University of Hannover; Sönke Müller, University of Hannover; Kian Pakzad, University of Hannover; MARGARETH GONCALVES SIMOES, CNPS. |
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Título: |
Multitemporal fuzzy classification model based on class transition possibilities. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
ISPRS Journal of Photogrammetry & Remote Sensing, Amsterdam, v. 62, n. 3, p. 186-200, Aug. 2007. |
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DOI: |
10.1016/j.isprsjprs.2007.04.001 |
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Idioma: |
Inglês |
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Conteúdo: |
This paper proposes a new method to model temporal knowledge and to combine it with spectral and spatial knowledge within an integrated fuzzy automatic image classification framework for land-use land-cover map update applications. The classification model explores not only the object features, but also information about its class at a previous date. The method expresses temporal class dependencies by means of a transition diagram, assigning a possibility value to each class transition. A Genetic Algorithm (GA) carries out the class transition possibilities estimation. Temporal and spectral/spatial classification results are combined by means of fuzzy aggregation. The improvement achieved by the use of multitemporal knowledge rather than a pure monotemporal approach was assessed in a real application usingLANDSATimages from MidwestBrazil. The experiments showed that the use of temporal knowledge markedly improved the classification performance, in comparison to a conventional single-time classification. A further observation was that multitemporal knowledge may subsume the knowledge related to steady spatial attributes whose values do not significantly change over time. |
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Palavras-Chave: |
Interpretação multitemporal; Lógica Fuzzy. |
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Thesagro: |
Sensoriamento Remoto. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01966naa a2200241 a 4500
001 1339184
005 2016-10-04
008 2007 bl uuuu u00u1 u #d
024 7 $a10.1016/j.isprsjprs.2007.04.001$2DOI
100 1 $aMOTA, G. L. A.
245 $aMultitemporal fuzzy classification model based on class transition possibilities.$h[electronic resource]
260 $c2007
520 $aThis paper proposes a new method to model temporal knowledge and to combine it with spectral and spatial knowledge within an integrated fuzzy automatic image classification framework for land-use land-cover map update applications. The classification model explores not only the object features, but also information about its class at a previous date. The method expresses temporal class dependencies by means of a transition diagram, assigning a possibility value to each class transition. A Genetic Algorithm (GA) carries out the class transition possibilities estimation. Temporal and spectral/spatial classification results are combined by means of fuzzy aggregation. The improvement achieved by the use of multitemporal knowledge rather than a pure monotemporal approach was assessed in a real application usingLANDSATimages from MidwestBrazil. The experiments showed that the use of temporal knowledge markedly improved the classification performance, in comparison to a conventional single-time classification. A further observation was that multitemporal knowledge may subsume the knowledge related to steady spatial attributes whose values do not significantly change over time.
650 $aSensoriamento Remoto
653 $aInterpretação multitemporal
653 $aLógica Fuzzy
700 1 $aFEITOSA, R. Q.
700 1 $aCOUTINHO, H. L. C.
700 1 $aLIEDTKE, C. E.
700 1 $aMÜLLER, S
700 1 $aPAKZAD, K.
700 1 $aMEIRELLES, M. S. P.
773 $tISPRS Journal of Photogrammetry & Remote Sensing, Amsterdam$gv. 62, n. 3, p. 186-200, Aug. 2007.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
11/05/2001 |
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Data da última atualização: |
21/11/2018 |
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Autoria: |
PAIVA, E. A. S. e; MORAIS, H. C. de; ISAIAS, R. M. dos S.; ROCHA, D. M. S. de; OLIVEIRA, P. E. |
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Afiliação: |
Élder Antônio Sousa e Paiva, Universidade Federal de Minas Gerais - UFMG/Departamento de Botânica; Helena Castanheira de Morais, Universidade de Brasília - UnB/Departamento de Ecologia; Rosy Mary dos Santos Isaias, Universidade Federal de Minas Gerais - UFMG/Departamento de Botânica; Dulce Maria Sucena da Rocha, Universidade de Brasília - UnB/Departamento de Ecologia; Paulo Eugênio Oliveira, Universidade Federal de Uberlândia - UFU Departamento de Biociências. |
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Título: |
Ocurrence and structure of extrafloral nectaries in Pterodon pubescens Benth. and Pterodon polygalaeflorus Benth. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 2, p. 219-224, fev. 2001 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Ocorrência e estrutura de nectários extraflorais em Pterodon pubescens Benth. e em Pterodon polygalaeflorus Benth. |
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Conteúdo: |
Extrafloral nectaries (EFNs) are structurally variable and widely spread among the angiosperms. The occurrence of EFNs in leaves of Pterodon polygalaeflorus Benth. and Pterodon pubescens Benth. (Fabaceae: Papilionoideae) were detected in adult specimens, at the time of production of new buds and flowers. The goals of the present study are to register the occurrence of the EFNs in P. pubescens and P. polygalaeflorus, and provide comparative data on the anatomical structures. The EFNs occur in the rachis and are located under the insertion of each petiolule. Each nectary consists of a small elevation whose apical portion is deeply invaginated, resulting in a depression (secretory pole), a common characteristic of both species. Unicellular, non-glandular trichomes occur along the rachis, being less numerous in P. polygalaeflorus while in P. pubescens they cover the EFNs. The secretory tissue consists of parenchyma cells with dense cytoplasm compactly arranged. The nectar reaches the surface of the EFNs by rupturing the thin cuticle which covers the secretory pole, since both species lack stomata or any other interruption at the epidermis. The basic difference between the two species, in relation to the EFNs, is the density of the pubescence, which is always greater in P. pubescens. Structural and dimensional modifications may be observed, even between basal and apical nectaries in the same rachis, so it does not constitute a taxonomical tool. |
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Palavras-Chave: |
Nectarios; Plant animal relations; Plant secretions; Proteção das plantas; Relação planta-animal; Secreção vegetal. |
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Thesagro: |
Anatomia Vegetal; Animal Herbívoro; Néctar. |
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Thesaurus NAL: |
Herbivores; Nectaries; Plant anatomy; Plant protection. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/18929/1/pab99_174.pdf
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Marc: |
LEADER 02600naa a2200337 a 4500
001 1103660
005 2018-11-21
008 2001 bl uuuu u00u1 u #d
100 1 $aPAIVA, E. A. S. e
245 $aOcurrence and structure of extrafloral nectaries in Pterodon pubescens Benth. and Pterodon polygalaeflorus Benth.
260 $c2001
500 $aTítulo em português: Ocorrência e estrutura de nectários extraflorais em Pterodon pubescens Benth. e em Pterodon polygalaeflorus Benth.
520 $aExtrafloral nectaries (EFNs) are structurally variable and widely spread among the angiosperms. The occurrence of EFNs in leaves of Pterodon polygalaeflorus Benth. and Pterodon pubescens Benth. (Fabaceae: Papilionoideae) were detected in adult specimens, at the time of production of new buds and flowers. The goals of the present study are to register the occurrence of the EFNs in P. pubescens and P. polygalaeflorus, and provide comparative data on the anatomical structures. The EFNs occur in the rachis and are located under the insertion of each petiolule. Each nectary consists of a small elevation whose apical portion is deeply invaginated, resulting in a depression (secretory pole), a common characteristic of both species. Unicellular, non-glandular trichomes occur along the rachis, being less numerous in P. polygalaeflorus while in P. pubescens they cover the EFNs. The secretory tissue consists of parenchyma cells with dense cytoplasm compactly arranged. The nectar reaches the surface of the EFNs by rupturing the thin cuticle which covers the secretory pole, since both species lack stomata or any other interruption at the epidermis. The basic difference between the two species, in relation to the EFNs, is the density of the pubescence, which is always greater in P. pubescens. Structural and dimensional modifications may be observed, even between basal and apical nectaries in the same rachis, so it does not constitute a taxonomical tool.
650 $aHerbivores
650 $aNectaries
650 $aPlant anatomy
650 $aPlant protection
650 $aAnatomia Vegetal
650 $aAnimal Herbívoro
650 $aNéctar
653 $aNectarios
653 $aPlant animal relations
653 $aPlant secretions
653 $aProteção das plantas
653 $aRelação planta-animal
653 $aSecreção vegetal
700 1 $aMORAIS, H. C. de
700 1 $aISAIAS, R. M. dos S.
700 1 $aROCHA, D. M. S. de
700 1 $aOLIVEIRA, P. E.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 36, n. 2, p. 219-224, fev. 2001
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