Satellite Image
Mostrando 1-12 de 138 artigos, teses e dissertações.
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1. MODELAGEM DA EXPANSÃO DO REFLORESTAMENTO COM EUCALIPTO E EFEITOS NA ESTRUTURA DA PAISAGEM
Resumo Neste artigo trabalhamos uma metodologia combinada de sensoriamento remoto, modelagem ambiental e ecologia da paisagem para análise dos impactos da expansão do reflorestamento com eucalipto na estrutura da paisagem. O uso combinado dessas técnicas possibilitou a simulação de cenários futuros, utilizando-os não apenas como uma ferramenta de aná
Mercator (Fortaleza). Publicado em: 09/12/2019
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2. A NOVEL MODEL FOR ORIENTATION OF LINEAR OPTICAL SATELLITE IMAGES BASED IN THE ADAPTATION OF THE ORBIT-ATTITUDE MODEL
Abstract In this paper a novel model to orient a pushbroom linear optical satellite image is proposed. This one is based in the adaptation of the Orbit-Attitude model for use of the Modified UCL Kepler platform model. It has only the components of satellite position and velocity as unknowns. This implies not only the reduction of unknowns but also the elimin
Bol. Ciênc. Geod.. Publicado em: 14/10/2019
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3. Atributos físico-espaciais e configuracionais de segmentos de ruas e ocorrências de roubos a pedestres
Resumo Este artigo trata das relações entre as ocorrências de roubos a pedestres em diferentes turnos e atributos físico-espaciais e configuracionais de segmentos de ruas nos 22 bairros na região central de Porto Alegre, incluindo comprimento do segmento, conectividade, integração e escolha, conexões físicas e visuais, barreiras físicas e visuais,
Ambient. constr.. Publicado em: 03/10/2019
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4. Avaliação dos conflitos no uso da terra na bacia hidrográfica do ribeirão Lamarão, Distrito Federal
Resumo A falta de estudos e a constante degradação das Áreas de Preservação Permanentes (APPs) têm representado um dos maiores entraves para o planejamento de ações conservacionistas, além de favorecer o uso de estratégias inadequadas de manejo das bacias hidrográficas. Dessa forma, este estudo teve como objetivo, delimitar de maneira automática
Ciênc. Florest.. Publicado em: 30/09/2019
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5. SENSITIVITY OF EVAPOTRANSPIRATION ESTIMATED BY ORBITAL IMAGES UNDER INFLUENCE OF SURFACE TEMPERATURE
ABSTRACT Surface temperature (Ts) is a determining factor to obtain energy balance parameters, being relevant to understand the influence of this variable on the estimation of evapotranspiration. Thus, the objective of this study was to simulate errors in Ts estimation to verify the consequences of actual evapotranspiration (ETa) estimated by the SAFER (Simp
Eng. Agríc.. Publicado em: 09/09/2019
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6. DESHADOWING OF HIGH SPATIAL RESOLUTION IMAGERY APPLIED TO URBAN AREA DETECTION
Abstract Different built-up structures usually lead to large regions covered by shadows, causing partial or total loss of information present in urban environments. In order to mitigate the presence of shadows while improving the urban target discrimination in multispectral images, this paper proposes an automated methodology for both detection and recovery
Bol. Ciênc. Geod.. Publicado em: 10/07/2019
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7. CROP DATA RETRIEVAL USING EARTH OBSERVATION DATA TO SUPPORT AGRICULTURAL WATER MANAGEMENT
ABSTRACT Accurate crop data are essential for reliable irrigation water requirements (IWR) calculations, which can be acquired during the crop growth season for a given region using earth observation (EO) satellite time series. In addition, a relationship between crop coefficients and the NDVI can be established to allow for crop evapotranspiration estimatio
Eng. Agríc.. Publicado em: 19/06/2019
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8. Evolução Espaço-Temporal do Risco de Degradação da Cobertura Vegetal de Petrolina-PE
Resumo A disponibilidade de imagens de satélites em diferentes resoluções espacial, temporal, radiométrica e espectral estão sendo empregadas para monitorar grandes áreas dos diversos biomas existentes no mundo. O monitoramento por imagens orbitais possibilita detectar, analisar e inferir sobre alterações da superfície da Terra provocadas por proces
Rev. bras. meteorol.. Publicado em: 30/05/2019
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9. Sampling strategy of an epidemiological survey using a satellite image program
ABSTRACT OBJECTIVE To describe the sampling strategy of an epidemiological survey with the aid of satellite images, including details of the multistage probability sampling process. METHODS A probability sample of individuals living in the rural area of Rosário do Sul, state of Rio Grande do Sul, Brazil, aged 15 years old or more, was evaluated. Participa
Rev. Saúde Pública. Publicado em: 06/05/2019
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10. Content Based Geographic Image Retrieval using Local Vector Pattern
ABSTRACT Large image archives formed by satellite remote sensing missions are getting an increasing valuable source of information in Geographic Information Systems (GIS). The need for retrieving a required image from a huge image database is increasing significantly for the purpose of analyzing resources in GIS. Content Based Geographic Image Retrieval (CBG
Braz. arch. biol. technol.. Publicado em: 25/06/2018
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11. Vegetation Image as Bayesian Predictor for Radio Propagation in Complex Environments Using Unscented Transform
Abstract Vegetation is considered a complex environment for analysis of scattering and attenuation in radio propagation phenomena. Satellite image processing can improve planning of radio systems with a vegetation attenuation predictor. In this research, the prediction is based on the correlation of more than 56% between RGB pixel values and vegetation atten
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2018-06
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12. Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil
BACKGROUND Triatoma sordida and Triatoma pseudomaculata are frequently captured triatomine species in the Brazilian savannah and caatinga biomes, respectively, and in Brazilian domiciles. OBJECTIVES This study identified eco-epidemiological changes in Chagas disease in northern Minas Gerais state, Brazil, and considered the influence of environmental shift
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-11