Image Artifacts
Mostrando 1-12 de 34 artigos, teses e dissertações.
-
1. PROVOQUE - Problematizando Visualidades e Questionando Estereótipos: leitura de imagens fundamentada nos Estudos da Cultura Visual
RESUMO Nas práticas escolares de ensino de Arte, é comum identificar exercícios de leitura de imagem fundamentados em abordagens a partir das quais priorizam-se os elementos formais e plásticos de uma composição. Apesar das contribuições que tais abordagens têm conferido às maneiras como os sujeitos aprendem a se relacionar com as imagens à sua vo
Educ. rev.. Publicado em: 31/10/2019
-
2. Proposta de uma Gramática Visual para Descrição e Análise Composicional de Vídeos Digitais em Línguas de Sinais
RESUMO Com o advento da produção e ampla circulação de vídeos por meio da internet, os surdos ganharam um espaço novo e independente para expressão cultural, formando, nos últimos 20 anos, acervos digitais que configuram materialmente uma surdo-memória em línguas de sinais. Assim sendo, este artigo apresenta o mapeamento e a proposta de uma gramát
Rev. bras. educ. espec.. Publicado em: 12/09/2019
-
3. Peri-implant assessment via cone beam computed tomography and digital periapical radiography: an ex vivo study
OBJECTIVES: This research evaluated detail registration in peri-implant bone using two different cone beam computer tomography systems and a digital periapical radiograph. METHODS: Three different image acquisition protocols were established for each cone beam computer tomography apparatus, and three clinical situations were simulated in an ex vivo fresh p
Clinics. Publicado em: 2017-11
-
4. Giving shape to the past: Pre-columbia in nineteenth-century Mexican literary journals
Abstract The literary journal “El Museo Mexicano” (1843-1845) marked a watershed in Mexican nationalism, and sought to shape aspirations of an elite segment of nineteenth-century Mexican society eager to claim a post-colonial identity by exploring the cultural and historical strands that were combined in the young Republic. The editors solicited contribu
Bol. Mus. Para. Emílio Goeldi. Ciênc. hum.. Publicado em: 2017-08
-
5. Quality Evaluation of Chromatic Interpolation Algorithms for Image Acquisition System
ABSTRACT The main goal of the Libertad 2 mission is to take images of the Earth’s surface in the visible spectrum with a multispectral sensor and send them as a Bayer array. To carry out the reconstruction in land of these images and to view them in a RGB color model, it is necessary to use a color interpolation algorithm to determine the values of the dif
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
-
6. Interferência dos artefatos de imagem causados por acessórios ortodônticos metálicos em sobreposições de imagens de TCFC / Influence of streaking artifacts due to metallic orthodontic accessories in CBCT 3D model superimposition
The aim of this study was to determine whether the artifacts caused by orthodontic metallic accessories interfere with the accuracy of three-dimensional (3D) Cone Beam Computed Tomography (CBCT) model superimposition. Ten dry human skulls were subjected to 3 CBCT scans: without orthodontic brackets (T1), with stainless steel brackets bonded (T2) and with ort
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/07/2012
-
7. Reconhecimento de texto e rastreamento de objetos 2D/3D / Text recognition and 2D/3D object tracking
In this thesis we address three computer vision problems: (1) the detection and recognition of flat text objects in images of real scenes; (2) the tracking of such text objects in a digital video; and (3) the tracking an arbitrary three-dimensional rigid object with known markings in a digital video. For each problem we developed innovative algorithms, which
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/03/2012
-
8. Entre lajedos e lagoas : formação territorial, habitações e bens culturais no povoado de Alagoinhas nos sertões de Pernambuco (1775-1835).
During the firsts centuries of colonization the more countryside areas of the Portuguese America were called deserts by the inhabitants of the urban centers by the shores. Those areas were called empty, inhospitable, and their inhabitants called savages, uncultured and barbarians. And, although those areas were taken by the colonizing process through the est
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
-
9. Hausdorff Distance evaluation of orthodontic accessories' streaking artifacts in 3D model superimposition
The aim of this study was to determine whether image artifacts caused by orthodontic metal accessories interfere with the accuracy of 3D CBCT model superimposition. A human dry skull was subjected three times to a CBCT scan: at first without orthodontic brackets (T1), then with stainless steel brackets bonded without (T2) and with orthodontic arch wires (T3)
Braz. oral res.. Publicado em: 2012-10
-
10. Uma Nova EstratÃgia para Renderizar Descontinuidades e SuperfÃcies Intersectantes em Modelos Baseados em Splats / A New Strategy for Render and Surface Discontinuities in Models Based on Intersecting Splats
Splats based models have gained increasing attention due to its potential for rendering complex geometric models efficiently and with high quality. The absence connectivity information of these models allows complex modeling operations, as Boolean operations, and fractures in physics simulations. However, these operations often generate models with edges and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
-
11. O jornal eletrônico Educação &Imagem: espaço tempo de tessitura de conhecimentos através de práticas de professores com imagens e narrativas
Este trabalho pesquisou os usos do Jornal Eletrônico Educação &Imagem, feitos para e por professores da rede pública. As práticas narradas e as imagens trazidas pelos docentes, que são usuários do jornal, nos possibilitou refletir sobre os currículos e os conhecimentos que têm sido tecidos cotidianamente. Para analisar as narrativas e as imagens pre
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/05/2010
-
12. Methodological approaches to planar and volumetric scintigraphic imaging of small volume targets with high spatial resolution and sensitivity
Single-photon emission computed tomography (SPECT) is a non-invasive imaging technique, which provides information reporting the functional states of tissues. SPECT imaging has been used as a diagnostic tool in several human disorders and can be used in animal models of diseases for physiopathological, genomic and drug discovery studies. However, most of the
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-08