| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34T/47LCNA5 | |||
| Repository | sid.inpe.br/mtc-m21d/2022/09.19.14.38 | |||
| Metadata Repository | sid.inpe.br/mtc-m21d/2022/09.19.14.38.17 | |||
| Metadata Last Update | 2023:01.03.16.46.16 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | OliveiraValMedOliKam:2022:FeClOp | |||
| Title | Feasibility of classifying optical water types from smartphones cameras  | |||
| Year | 2022 | |||
| Access Date | 2024, May 19 | |||
| Secondary Type | PRE CI | |||
| 2. Context | ||||
| Author | 1 Oliveira, Andréa de Lima 2 Valério, Aline de Matos 3 Medeiros, Thais Andrade Galvão de 4 Oliveira, Natália Rudorff 5 Kampel, Milton | |||
| Resume Identifier | 1 2 3 4 5 8JMKD3MGP5W/3C9JHTG | |||
| Group | 1 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 | |||
| Affiliation | 1 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) | |||
| Author e-Mail Address | 1 andrea.liolive@gmail.com 2 alinedmv@gmail.com 3 thais.agmedeiros@gmail.com 4 natalia.rudorff@inpe.br 5 mkampel2010@gmail.com | |||
| Conference Name | Congreso Latinoamericano de Ciencias del Mar, 19 | |||
| Conference Location | Panamá | |||
| Date | 19-23 Sept. 2022 | |||
| History (UTC) | 2022-09-19 14:38:31 :: simone -> administrator :: 2022 2023-01-03 16:46:16 :: administrator -> simone :: 2022 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | Antecedentes 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. | |||
| Area | SRE | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Feasibility of classifying... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCT > Feasibility of classifying... | |||
| doc Directory Content | there are no files | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3F3NU5S 8JMKD3MGPCW/46KUATE | |||
| Host Collection | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy 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 | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||