Image Enhancement
Mostrando 1-12 de 73 artigos, teses e dissertações.
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1. Improving acute demyelinating lesion detection: which T1-weighted magnetic resonance acquisition is more sensitive to gadolinium enhancement?
RESUMO No que se refere à necessidade de um método preciso e padronizado para a detecção de atividade inflamatória em esclerose múltipla (EM), diferentes aquisições de RM devem ser comparadas com objetivo de escolher a sequência mais sensível para a rotina clínica. Objetivo Comparar a sensibilidade das sequências ponderadas em T1 após a admini
Arq. Neuro-Psiquiatr.. Publicado em: 29/07/2019
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2. Gestão socioambiental em micro e pequenas indústrias de Pau dos Ferros-RN
Resumo O presente estudo tem por objetivo analisar a percepção de gestores de micro e pequenas indústrias da cidade de Pau dos Ferros-RN acerca de práticas socioambientais. Para tanto, buscou-se verificar se essas empresas fazem uso de gestão socioambiental, identificando suas práticas e apontando motivações, entraves e oportunidades para sua implant
Gest. Prod.. Publicado em: 16/05/2019
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3. Intra-Atrial Dyssynchrony Using Cardiac Magnetic Resonance to Quantify Tissue Remodeling in Patients with Atrial Fibrillation
Resumo Fundamento: Estudos recentes sugerem que o realce tardio com gadolínio (RTG) no átrio esquerdo (AE) pode quantificar a remodelação tecidual subjacente que abriga a fibrilação atrial (FA). No entanto, a quantificação do RTG-AE requer um trabalho intenso de aquisição por ressonância magnética e pós-processamento em centros experientes. A
Arq. Bras. Cardiol.. Publicado em: 15/04/2019
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4. Robust pulmonary segmentation for chest radiography, combining enhancement, adaptive morphology and innovative active contours
Abstract Introduction Statistical data reveal that approximately 140 million radiological exams are performed annually in Brazil. These exams are designed to detect and to analyze fractures, caused by different types of trauma; as well as, to diagnose pathologies such as pulmonary diseases. For better visualization of those lesions or abnormalities, method
Res. Biomed. Eng.. Publicado em: 13/09/2018
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5. Design and analysis of different models of microfluidic devices evaluated in Enhanced Oil Recovery (EOR) assays
ABSTRACT Microfluidic devices are a new platform for Enhanced Oil Recovery (EOR) assays. The application of Colloidad Dispersion Gels (CDG) injection method has been proposed in recent years. However, the mechanism of oil recovery enhancement has not been completely elucidated. Its purpose is to mobilize oil by decreasing the permeability of channeled zones.
Matéria (Rio J.). Publicado em: 19/07/2018
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6. Image segmentation and particles classification using texture analysis method
Introduction: Ingredients of oily fish include a large amount of polyunsaturated fatty acids, which are important elements in various metabolic processes of humans, and have also been used to prevent diseases. However, in an attempt to reduce cost, recent developments are starting a replace the ingredients of fish oil with products of microalgae, that also p
Res. Biomed. Eng.. Publicado em: 09/09/2016
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7. Precisão de medidas lineares na odontometria através de localizador foraminal eletrônico, radiografia convencional e digital / Accuracy of linear measurements in dental locator through foraminal eletronic, conventional radiography and digital
Para o sucesso do tratamento endodôntico é fundamental a determinação do comprimento real de trabalho através de métodos confiáveis e precisos. Os objetivos desse trabalho foram: comparar, qualitativamente, radiografias convencionais com as digitais, com e sem manuseio das ferramentas do programa do Digora 2.5; avaliar a precisão in vivo de um modelo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/04/2012
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8. Assessment of enamel-dentin caries lesions detection using bitewing PSP digital images
OBJECTIVES: The aim of this study was to evaluate the detection of enamel-dentin occlusal caries using photostimulable phosphor plates. MATERIAL AND METHODS: The ability to detect enamel-dentin occlusal caries in 607 premolars and molars from 47 patients between 10 and 18 years old, referred to the School of Dentistry of the Federal University of Bahia, Braz
Journal of Applied Oral Science. Publicado em: 2011-10
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9. An efficient naturalness-preserving image-recoloring method for dichromats
We present an efficient and automatic image-recoloring technique for dichromats that highlights important visual details that would otherwise be unnoticed by these individuals. While previous techniques approach this problem by potentially changing all colors of the original image, causing their results to look unnatural to color vision deficients, our appro
Publicado em: 2011
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10. Mimetic finite difference methods in image processing
We introduce the use of mimetic methods to the imaging community, for the solution of the initial-value problems ubiquitous in the machine vision and image processing and analysis fields. PDE-based image processing and analysis techniques comprise a host of applications such as noise removal and restoration, deblurring and enhancement, segmentation, edge det
Computational & Applied Mathematics. Publicado em: 2011
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11. Phase-adaptive superresolution of mammographic images using complex wavelets
This correspondence describes a new superresolution approach for enhancing the resolution of mammographic images using complex wavelet frequency information. This method allows regions of interest of a mammographic image to be viewed in enhanced resolution while reducing the patient exposure to radiation. The proposed method exploits the structural character
Publicado em: 2011
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12. Análise de métodos de realce espectral e temporal aplicados à discriminação de classes de uso e cobertura da terra em áreas de Cerrado / Analysis methods of spectral and temporal enhancement applied to class discrimination use and land cover in areas Closed
O bioma Cerrado tem destaque nacional e internacional em virtude de sua dimensão, cerca de 205 milhões de hectares do território, além de se destacar como uma das áreas de importância global para a biodiversidade. Com 9,2% de sua área assegurada na forma de parque ou reserva ecológica, estudos do mapeamento da cobertura vegetal apontam um cenário de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/03/2010