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1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemtc-m21d.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34T/47LCNA5
Repositóriosid.inpe.br/mtc-m21d/2022/09.19.14.38
Repositório de Metadadossid.inpe.br/mtc-m21d/2022/09.19.14.38.17
Última Atualização dos Metadados2023:01.03.16.46.16 (UTC) administrator
Chave SecundáriaINPE--PRE/
Chave de CitaçãoOliveiraValMedOliKam:2022:FeClOp
TítuloFeasibility of classifying optical water types from smartphones cameras
Ano2022
Data de Acesso14 maio 2024
Tipo SecundárioPRE CI
2. Contextualização
Autor1 Oliveira, Andréa de Lima
2 Valério, Aline de Matos
3 Medeiros, Thais Andrade Galvão de
4 Oliveira, Natália Rudorff
5 Kampel, Milton
Identificador de Curriculo1
2
3
4
5 8JMKD3MGP5W/3C9JHTG
Grupo1 SER-SRE-DIPGR-INPE-MCTI-GOV-BR
2 DIOTG-CGCT-INPE-MCTI-GOV-BR
3 YYY-CGCT-INPE-MCTI-GOV-BR
4 DISSM-CGCT-INPE-MCTI-GOV-BR
5 DIOTG-CGCT-INPE-MCTI-GOV-BR
Afiliação1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1 andrea.liolive@gmail.com
2 alinedmv@gmail.com
3 thais.agmedeiros@gmail.com
4 natalia.rudorff@inpe.br
5 mkampel2010@gmail.com
Nome do EventoCongreso Latinoamericano de Ciencias del Mar, 19
Localização do EventoPanamá
Data19-23 Sept. 2022
Histórico (UTC)2022-09-19 14:38:31 :: simone -> administrator :: 2022
2023-01-03 16:46:16 :: administrator -> simone :: 2022
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
ResumoAntecedentes y justificación: Orbital sensors have been used for ocean colour research and monitoring for decades with successful retrieval of chlorophyll-a concentrations, suspended matter and other biogeochemical and bio-optical properties. Recently, in situ sampling of remote sensing radiance has also been stimulated using smartphone ocean colour apps1. Planteamiento del problema y objetivos: The objective of this study was to verify the feasibility of using smartphone cameras to classify common water types in Brazil. Materiales y Métodos: We used 74 in situ remote sensing reflectance spectra collected using hyperspectral radiometers in various water types (i.e., in the southeast coast, Abrolhos coral reef and Amazon River) to simulate the multispectral bands of smartphones (SSB)2 and apply an Optical Water Type (OWT) classification3. We also used simulated MODIS bands to compare the classification results. The K-means classification was applied to the hyperspectral data and simulated bands to distinguish the OWTs. Also, the Apparent Visible Wavelength (AVW) index was used to analyse the bands which contributed more to the classification. Resultados y Discusión: The results indicated that 4 classes were obtained and agreed in more than 95% for all sets of data (hyperspectral, MODIS and SSB). The AVW index revealed a higher contribution of the blue band to the first-class, red band to the second class and green band for the last two classes, which is related to the concentration of different biogeochemical constituents in the waters. Conclusiones: This study provides a wider perspective of how the smartphone cameras can be applied to water classification, which can be extended to ocean colour alteration track, in a citizen science approach.
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4. Condições de acesso e uso
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5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3F3NU5S
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Acervo Hospedeirourlib.net/www/2021/06.04.03.40
6. Notas
Campos Vaziosarchivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume
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