Multispectral Images
Mostrando 13-24 de 46 artigos, teses e dissertações.
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13. Estudo da composição e distribuição da alteração hidrotermal do Cerro Aguas Calientes, Salta, Argentina a partir de imagens do sensor ASTER
The conception of the ASTER sensor by the end of the 1990s brought new benefit to the mapping of hydrothermal alteration zones, initiating a promising phase in remote sensing of earthly resources. Recent studies utilizing this sensor for mineralogical mapping have proved its effectiveness. This study tested the hyperspectral classification in ASTER multispec
Publicado em: 2009
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14. Caracterização ambiental de bancos areno-lamosos nos campos petrolíferos de Macau e Serra (RN), como subsídio às medidas mitigadoras ao processo erosivo
On Rio Grande do Norte northern coast the process of sediment transport are intensely controlled by wind and sea (waves and currents) action, causing erosion and shoreline morphological instability. Due to the importance of such coastal zone it was realized the multi-spectral mapping and physical-chemical characterization of mudflats and mangroves aiming to
Publicado em: 2009
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15. Study of Cerrado physiognomies with Hyperion-EO-1 data / Estudo de fitofisionomias de Cerrado com dados do sensor Hyperion-EO-1
The study of the Brazilian savanna physiognomies (Cerrado) using remote sensing data is still a challenge due to floristic and structural diversity, variation in phenological response to precipitation, relationships with other biomes in the transition zones, and to fire and resultant effects. Because of these factors, some physiognomies are not separable in
Publicado em: 2009
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16. Processos dinÃmicos e evolutivos da zona costeira de Itamaracà por sensoriamento remoto e medidas in situ
The coastal zone of Itamaracà is like a highly dynamic environment where land and oceanic processes interact altering frequently coastal characteristics. In this context, this current study examines the responsible processes of such changes from the development and application of methodologies, which includes digital image processing and the obtaining of in
Publicado em: 2009
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17. Gênese, distribuição e caracterização dos espongilitos do noroeste de Minas Gerais
This study relates to the spongillites deposits that occurs in shallow ponds on a karstic planation surface developed on rocks of the Neoproterozoic São Francisco Supergroup. Cenozoic siliciclastics sediments are related to this surface and Mesozoic Areado Group rocks occur adjacent to the deposits. Field studies associated with the analysis of multispectra
Publicado em: 2009
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18. Proposta de metodologia para utilização em hardware reconfigurável para aplicações aeroespaciais / Proposal methodology for use in reprogrammable hardware in aerospace applications
The CBERS program is a partnership between Brazil and China to produce satellites for remote sensing, producing images of the Earth for studies in several areas, mainly the ones related to the sustainable exploitation of natural resourses. The methodology proposed in this work will be applied on the satellite CBERS-3 e 4s Multispectral Camera (MUXCAM), the f
Publicado em: 2008
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19. CHARACTERIZATION OF OBJECTIVES WITH IMAGES OF MULTISPECTRAL AIRBORNE SENSOR EPS-A 31T SUPPORTED BY SPECTRORADIOMETRY DATA. / CARACTERIZAÇÃO DE ALVOS COM IMAGENS DO SENSOR MULTIESPECTRAL AEROTRANSPORTADO EPS-A 31T APOIADO POR DADOS DE ESPECTRORADIOMETRIA.
A necessidade de identificar objetos no solo constituídos por diversificados tipos de materiais tornou-se um desafio aos pesquisadores na atividade de sensoriamento remoto. Esta situação alavancou novas pesquisas na área de desenvolvimento de sensores e estimulou o aprimoramento e criação de novas técnicas e ferramentas que auxiliem na caracterizaçã
Publicado em: 2008
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20. Airborne geophysical and geological data applied to the selection of groudwater potential areas in crystalline rocks of Ceara, Brazil / Dados aerogeofisicos e geologicos aplicados a seleção de areas favoraveis para agua subterranea no dominio cristalino do Ceara, Brasil
The location of water well in Northeast Brazil is usually based on the interpretation of structural lineaments in aerial-photographs and electromagnetic and electrical resistivity ground geophysics surveys. However, the success of these techniques is variable, and the small coverage area is another limitation. This Thesis favors a different approach, the use
Publicado em: 2008
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21. Software process implementation for aerospatial equipment testing / Implementação de processo de software para teste de equipamentos aeroespaciais
The MUX-GSE is a set of optical, mechanical and electronic equipments that verifies, through automatic tests, a series of functional requirements and assists during the assembly and integration phases of the satellites CBERS-3&4s multispectral camera. These satellites, fruit of a partnership between Brazil and China, are remote sensing instruments, producing
Publicado em: 2007
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22. Relations between growth analysis, yield and remote sensing of sugarcane / Relação entre indicadores de crescimento e de produção da cana-de-açucar e dados espectrais terrestres e orbitais
The knowledge about the relations between agronomic variables and spectral data is a challenging issue when adopting remote sensing technique for crop yield forecast. This study analyses the relationship between sugarcane agronomic variables and spectral data derived from field spectroscopy and orbital data. One commercial field of sugarcane with the variety
Publicado em: 2007
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23. Identification of agricultural crop areas extensive using an approach spectro-temporal using MODIS images / Identificação de extensas áreas de culturas agrícolas empregando uma abordagem espectro-temporal utilizando imagens MODIS
Imagens do sensoriamento remoto possuem características espaciais, espectrais, radiométricas e temporais, tornando-se assim uma importante ferramenta para aplicações agrícolas nos mais diversos aspectos. Neste sentido, esta dissertação descreve uma metodologia para a classificação de extensas áreas agrícolas, em escala regional, utilizando imagens
Publicado em: 2007
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24. Road detection over informal settlements in a suburban area of Sao Paulo city by using high resolution satellite image and a object-based classification approach. / Detecção da malha viária na periferia urbana de São Paulo utilizando imagens de alta resolução espacial e classificação orientada a objetos.
Uncontrolled sprawl occurring in large cities of developing countries requires intensive mapping efforts to update geodatabases. The intense urbanization process experienced since the 70s in Sao Paulo city illustrates very well the reported scenario. Despite aerial data and, more recent, high spatial resolution satellite data which have been employed as basi
Publicado em: 2007