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Now showing items 31-40 of 40
Restauração de imagens em vibro-acustografia
(Universidade Federal de São Carlos, 2008-03-10)
Vibro-acoustography is an imaging modality that produces a map of the mechanical response of an object to a localized dynamic radiation force produced by an ultrasound field. This technique has been studied and used in ...
Istar: um esquema estrela otimizado para Image Data Warehouses baseado em similaridade
(Universidade Federal de São Carlos, 2011-08-26)
A data warehousing environment supports the decision-making process through the investigation and analysis of data in an organized and agile way. However, the current
data warehousing technologies do not allow that the ...
Processamento digital de imagens para inferência de risco de doença fúngica da bananicultura
(Universidade Federal de São Carlos, 2012-06-11)
The digital image processing has been used to solve a significant number of problems in the agricultural sector, especially with the evolution of remote sensing systems. This work presents a computational model based on ...
Avaliação das técnicas de segmentação, modelagem e classificação para o reconhecimento automático de gestos e proposta de uma solução para classificar gestos da libras em tempo real
(Universidade Federal de São Carlos, 2013-10-22)
Multimodal interfaces are becoming popular and trying to enhance user experience through the use of natural forms of interaction. Among these forms we have speech and gestures inputs. Speech recognition is already a common ...
Filtragem MAP 2-D de imagens CT ruidosas
(Universidade Federal de São Carlos, 2011-08-26)
Computed tomography has been widely used for medical diagnosis, since it allows viewing of internal parts of a body without overlapping structures. However, recent studies indicate a certain risk of cancer to the patients ...
Sistema para tomada de decisão baseado na geração de imagens estereoscópicas e reconhecimento de padrões circulares.
(Universidade Federal de São Carlos, 2003-08-20)
In this work, it is presented a system for decision-making based on stereoscopic image generation and recognition of circular patterns.
For stereoscopic imaging are used two low cost Web cam in canonical configuration and ...
Reconstrução 3D de imagens tomográficas de raios-x de arcos coronais em ambiente paralelo.
(Universidade Federal de São Carlos, 2003-05-30)
Space researches have been carried with the objective to forecast solar explosions, through images obtained by satellites equipped with X-ray telescopes. The highresolution solar images allow the study of the spatio-temporal ...
Abordagens não-locais para filtragem de ruído Poisson
(Universidade Federal de São Carlos, 2014-05-23)
A common problem to applications such as positron emission tomography, low-exposure X-ray imaging, fluorescence microscopy, optical and infrared astronomy, and others, is the degradation of the original signal by Poisson ...
Filtragem de sinograma tomográfico afetado por ruído Poisson utilizando wavelets anisotrópicas
(Universidade Federal de São Carlos, 2017-02-07)
The diagnostic imaging by computed tomography has become popular in recent decades. As the image acquisition method is effected by exposing the human body to X-ray dose (ionizing radiation), the frequent realization of ...
Novas propostas em filtragem de projeções tomográficas sob ruído Poisson
(Universidade Federal de São Carlos, 2010-05-24)
In this dissertation we present techniques for filtering of tomographic projections with Poisson noise. For the filtering of the tomogram projections we use variations of three filtering techniques: Bayesian estimation, ...