Synthetic Image
Mostrando 13-24 de 81 artigos, teses e dissertações.
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13. Componentes da matriz extracelular e seus reguladores no músculo liso brônquico na asma / Extracellular matrix components and regulators in the airway smooth muscle in asthma
There is an intimate relationship between the extracellular matrix (ECM) and smooth muscle cells within the airways. Few studies have comprehensively assessed the composition of different ECM components and its regulators within the airway smooth muscle (ASM) in asthma. With the aid of image analysis, the fractional area of total collagen and elastic fibres
Publicado em: 2009
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14. Estimation of retangular objects in high resolution images using template matching / Estimação de objetos retangulares em imagens de alta resolução utilizando casamento de modelos
The study of urban environment arouses great interest on remote sensing, given the social and economic implications of such application. Technological advances have increased the images generation with great capacity to discriminate Earth surface targets, which have been used to gather information about these areas. Every scene comprehension system has a set
Publicado em: 2009
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15. Efeitos da desnutriÃÃo protÃica crÃnica sobre o cÃrtex cerebral e evoluÃÃo ponderal de ratos adultos
Genetic and ambient influences affect the Central Nervous System (CNS) during the whole development process. An adequate nutrition is essential for the formation of the CNS, its functional organization and the development of the organism. Many researches using half-synthetic diets had been developed in laboratory animals to reproduce pathological, biochemica
Publicado em: 2009
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16. Método automático para calibração polarimétrica de imagens SAR / Automatic approach to polarimetric calibration of SAR images
Este trabalho tem por objetivos desenvolver um conjunto de ferramentas computacionais para calibração radiométrica de imagens de radares de abertura sintética polarimétricos (PolSAR) e apresentar um novo método automático de calibração polarimétrica. Para atingir estes objetivos foi empregada uma abordagem metodológica divida em seis etapas, com b
Publicado em: 2009
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17. Automatic approach to polarimetric calibration of SAR images / Método automático para calibração polarimétrica de imagens SAR
Este trabalho tem por objetivos desenvolver um conjunto de ferramentas computacionais para calibração radiométrica de imagens de radares de abertura sintética polarimétricos (PolSAR) e apresentar um novo método automático de calibração polarimétrica. Para atingir estes objetivos foi empregada uma abordagem metodológica divida em seis etapas, com b
Publicado em: 2009
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18. Extração de minúcias em imagens de impressões digitais / Extraction minutiae in fingerprints
In this research a method for minutiae extraction in fingerprints images, based on classical approach of image binarization, is presented. The method is composed by three main modules: preprocessing, minutiae detection and post-processing. It was used fingerprint images from FVC2004 database (Fingerprint Verification Competition) that includes synthetic and
Publicado em: 2008
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19. Modeling synthetic aperture radar image data
In this thesis we study maximum likelihood estimation (MLE) of the roughness parameter of the G 0 A distribution for speckled imagery (Frery et al., 1997). We discover that when a certain criteria is satisfied by the sample moments, the likelihood function is monotone and MLE estimates are infinite, implying an extremely homogeneous region. We implement four
Publicado em: 2008
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20. Contrast measures and stochastic distances in a model for speckled data
As imagens de radar de abertura sintÃtica (Synthetic Aperture Radar - SAR) sÃo de grande significancia em processamento de imagens. A principal difiuldade em se trabalhar com imagem SAR Ã a presenca do rudo speckle. Por causa do ruÃdo speckle, propor testes paramÃtricos para avaliar rugosidade no contexto de imagem SAR Ã muito problematico. Neste conte
Publicado em: 2008
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21. Non-parametric edge detection in speckled imagery
This thesis proposes a non-parametric technique for boundary detection in speckled imagery. Synthetic Aperture Radar (SAR), sonar, B-ultrasound and laser imagery is corrupted by a signal-dependent non-additive noise called speckle. Several statistical models have been proposed to describe such a noise, thus of specialized techniques for image improvement and
Publicado em: 2008
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22. A Methodology for Surface Reconstruction from Structured Light / A Methodology for Surface Reconstruction from Structured Light / Uma Metodologia para Reconstrução de Superfícies a Partir de Luz Estruturada / Uma Metodologia para Reconstrução de Superfícies a Partir de Luz Estruturada
The surfaces reconstruction from two-dimensional images is a problem present in various areas of knowledge, such as reconstruction of organs or parts of the human body from tomography; automatic recognition of characters; computer vision for assembly and inspection, processing of aerial and satellite images for weather forecast, among others. In all these ca
Publicado em: 2008
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23. The Shadow of the Rainbow: a historical/mythocritical study of Malba Tahans pedagogical discourse. / A sombra do arco-íris: um estudo histórico/mitocrítico do discurso pedagógico de Malba Tahan.
Our research is aimed at discussing Durands Theory of the Imaginary World (1996) as a theoretical-methodological proposal for Mathematical Education, in a cross-curricular perspective, according to D´Ambrosio and Vergani. This proposal comes alive through Mythocriticism, in an attempt to unveal teacher Júlio César de Mello e Souza, or Malba Tahans main pe
Publicado em: 2008
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24. 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