Texture Filtering
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Reticular pattern detection in dermoscopy: an approach using Curvelet Transform
Abstract Introduction Dermoscopy is a non-invasive in vivo imaging technique, used in dermatology in feature identification, among pigmented melanocytic neoplasms, from suspicious skin lesions. Often, in the skin exam is possible to ascertain markers, whose identification and proper characterization is difficult, even when it is used a magnifying lens and a
Res. Biomed. Eng.. Publicado em: 07/07/2016
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2. Arquitetura pipeline reconfigurável através de instruções geradas por programação genética para processamento morfológico de imagens digitais utilizando FPGAs / Reconfigurable pipelined architecture through instructions generated by genetic programming for morphological image processing using FPGAs
Mathematical morphology supplies powerful tools for low level image analysis, with applications in robotic vision, visual inspection, medicine, texture analysis and many other areas. Many of the mentioned applications require dedicated hardware for real time execution. The task of designing manually morphological operators for a given application isnot alway
Publicado em: 2008
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3. Sensoriamento remoto aplicado na analise da cobertura vegetal das reservas de desenvolvimento sustentavel Amana e Mamiraua / Remote sensing applied in vegetation analysis of Amana and Mamiraua sustainable-use protected areas
The knowledge of the Amazon biodiversity, especially that related to its vegetation cover, has been the subject of several studies involving the investigation of its ecological-evolutional processes and its dynamics as an integrated and complex set of biological units. The development of Remote Sensing technologies and methodologies is becoming increasingly
Publicado em: 2008
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4. Wavelet transform in digital inpainting / Aplicação de wavelets em inpainting digital
Digital Inpainting is a recent techinique that allows the filling of missing information in images. One important attribute of a digital inpainting technique is the ability of altering an image in such a way that it is not simple for the human observer to detect the modification, characterizing an undetectable modification. The strategies for filling missing
Publicado em: 2007
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5. Áreas agrícolas em sensores com resolução espacial de 30m estimadas a partir de dados originais e simulados MODIS e métricas de paisagem / Crop area in spatial resolution of 30m estimated with original and simulated MODIS data and landscape metrics
O agronegócio tem papel de destaque na economia brasileira. Dessa forma, a criação de metodologias para o monitoramento agrícola é fundamental. Nesta linha de raciocínio, a estimativa de área agrícola é uma atividade importante para a previsão de safras e avaliação da disponibilidade de produtos para abastecimento interno e exportações. A utili
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2006
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6. Crop area in spatial resolution of 30m estimated with original and simulated MODIS data and landscape metrics / Áreas agrícolas em sensores com resolução espacial de 30m estimadas a partir de dados originais e simulados MODIS e métricas de paisagem
O agronegócio tem papel de destaque na economia brasileira. Dessa forma, a criação de metodologias para o monitoramento agrícola é fundamental. Nesta linha de raciocínio, a estimativa de área agrícola é uma atividade importante para a previsão de safras e avaliação da disponibilidade de produtos para abastecimento interno e exportações. A utili
Publicado em: 2006
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7. Áreas agrícolas em sensores com resolução espacial de 30m estimadas a partir de dados originais e simulados MODIS e métricas de paisagem / Crop area in spatial resolution of 30m estimated with original and simulated MODIS data and landscape metrics
O agronegócio tem papel de destaque na economia brasileira. Dessa forma, a criação de metodologias para o monitoramento agrícola é fundamental. Nesta linha de raciocínio, a estimativa de área agrícola é uma atividade importante para a previsão de safras e avaliação da disponibilidade de produtos para abastecimento interno e exportações. A utili
Publicado em: 2006
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8. Influence of vegetation cover on nutrient cycling in soil solution at the area of Manaus AM. / Influência da cobertura vegetal na ciclagem de nutrientes via solução do solo na região de Manaus - AM.
The main objective of this study was to contribute for the sustainability of land use in the central Amazon, evaluating the influence of vegetation cover on nutrient concentrations in soil solution that is, on the amounts of cations, anions and dissolved organic carbon (DOC). Using a primary forest as reference, we compared these concentrations with those in
Publicado em: 2005
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9. Dimensionality reduction using mean conditional entropy applied for bioinformatics and image processing problems / "Redução de dimensionalidade utilizando entropia condicional média aplicada a problemas de bioinformática e de processamento de imagens"
Dimensionality reduction is a very important pattern recognition problem with many applications. Among the dimensionality reduction techniques, feature selection was the main focus of this research. In general, most dimensionality reduction methods that may be found in the literature privilegiate cases in which the data is linearly separable and with only tw
Publicado em: 2004
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10. Nonlinear processes in visual pattern discrimination.
Visual performance on many simple pattern discrimination tasks can be accurately predicted by quasi-linear models composed of oriented linear filters followed by simple contrast nonlinearities. However, many complex discrimination tasks require highly nonlinear processes for their explanation. Evidence is provided for two nonlinear processes in pattern discr
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11. Object-related activity revealed by functional magnetic resonance imaging in human occipital cortex.
The stages of integration leading from local feature analysis to object recognition were explored in human visual cortex by using the technique of functional magnetic resonance imaging. Here we report evidence for object-related activation. Such activation was located at the lateral-posterior aspect of the occipital lobe, just abutting the posterior aspect o