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Metadados

1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3MHJG2B
Repositóriosid.inpe.br/mtc-m21b/2016/10.04.11.48   (acesso restrito)
Última Atualização2018:04.10.19.40.32 (UTC) Marciana
Repositório de Metadadossid.inpe.br/mtc-m21b/2016/10.04.11.48.12
Última Atualização dos Metadados2022:03.11.17.20.24 (UTC) Marciana
Rótuloself-archiving-INPE-MCTI-GOV-BR
Chave de CitaçãoFreitasHaerShim:2008:LiSpMi
TítuloLinear spectral mixture model in moderate spatial resolution image data / Modelo linear de mistura espectral em imagem de moderada resolução espacial
Ano2008
MêsJan.
Data de Acesso25 abr. 2024
Tipo de Trabalhojournal article
Número de Arquivos1
Tamanho2131 KiB
2. Contextualização
Autor1 Freitas, Ramon Morais de
2 Haertel, V. b
3 Shimabukuro, Yosio Edemir
Grupo1 DSR-OBT-INPE-MCT-BR
2
3 DSR-OBT-INPE-MCT-BR
Afiliação1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Universidade Federal do Rio Grande do Sul, Centro de Sensoriamento Remoto e Meteorologia, Caixa Postal - 15044, Porto Alegre, RS, Brazil
3 Instituto Nacional de Pesquisas Espaciais (INPE)
RevistaBoletim de Ciências Geodésicas
Volume14
Número17
Páginas55-71
Histórico (UTC)2018-04-10 19:40:32 :: Marciana -> administrator :: 2008
2021-07-28 23:00:59 :: administrator -> Marciana :: 2008
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãofinaldraft
Palavras-ChaveGEOBASE Subject Index: data set
image analysis
linearity
pixel
radiometric method
remote sensing
spatial resolution
spectral reflectance
CBERS-2
ResumoThe concept of spectral mixture offers a wide range of applications in the Remote Sensing area. The application of this concept, however, requires the prior estimation of the component's (endmembers) spectral response. This latter requirement can be achieved by different methods, as reported in the literature, such as techniques for the detection of pure pixels, use of spectral libraries, and field radiometric measurements. Among those, the most often used is the pure pixel approach. In this approach, the components' spectral reflectances are estimated by means of pixels covered entirely by a single component. This approach offers the advantage of allowing the extraction of the required spectral reflectance directly from the image data. This approach, however, becomes increasingly unfeasible as the spatial resolution of the image data decreases, due to the larger ground area covered by a single pixel. In this study we propose a methodology to estimate the spectral reflectance for each component class in moderate spatial resolution image data, by applying the linear mixing model (MLME), and higher spatial resolution image data as auxiliary data. It is expected that this methodology will provide a more practical way to implement the spectral mixture approach to moderate resolution image data, allowing in this way the expansion of the information about the components' proportions across larger areas, up-scaling information in regional and global studies. Experiments were carried out using CCD (20 m ground resolution) and IRMSS (80 m ground resolution) and WFI (260 m ground resolution) CBERS-2 image data, as medium and moderate spatial resolution data, respectively. The spectral reflectances for the components in the IRMSS and WFI CBERS-2 spectral bands are estimated by applying the proposed methodology. The reliability of the proposed methodology was assessed by both analyzing scatter plots for CBERS-2 data and by comparing the fraction images produced by image data sets of the sensors analyzed.
ÁreaSRE
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Conteúdo da Pasta docacessar
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Conteúdo da Pasta agreement
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4. Condições de acesso e uso
Idiomaen
Arquivo Alvofreitas_modelo.pdf
Grupo de UsuáriosMarciana
Visibilidadeshown
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Repositório Espelhosid.inpe.br/mtc-m21b/2013/09.26.14.25.22
Unidades Imediatamente Superiores8JMKD3MGPCW/3ER446E
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosalternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress electronicmailaddress format isbn issn lineage mark nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark secondarytype session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
e-Mail (login)Marciana
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