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Doctoral Thesis
DOI
https://doi.org/10.11606/T.76.2000.tde-02122014-094646
Document
Author
Full name
Alan Salvany Felinto
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2000
Supervisor
Committee
Costa, Luciano da Fontoura (President)
Cesar Junior, Roberto Marcondes
Marana, Aparecido Nilceu
Mascarenhas, Nelson Delfino d'Ávila
Prado, Antônio Fernando Bertachini de Almeida
Title in Portuguese
Visão estéreo utilizando a curvatura como medida de similaridade
Keywords in Portuguese
Curvatura
Similaridade
Visão
Abstract in Portuguese
A tese desenvolveu-se na área de Visão Computacional, concentrando-se em visão estereoscópica. Este processo consiste na fusão de duas ou mais imagens bidimensionais, retiradas de uma mesma cena, de maneira a se obter a reconstrução tridimensional da mesma. Mais especificamente, procuramos utilizar as informações de curvatura ao longo do contorno como uma medida de similaridade para o cálculo dos ponstos conjugados em estéreo. Neste contexto, desenvolveu-se uma plataforma que gera imagens em estéreo com o objetivo de analisar e validar o estudo realizado, e comparar os resultados com outras diversas metodologias utilizadas no processamento da visão estéreo artificial. O gerador de imagens em estéreo evita ou permite diversos tipos de ruído (iluminação da cena, imprecisão no cálculo dos coeficientes de calibragem das câmeras, independência da resolução da imagem), facilitando assim as investigações
Title in English
Not available
Keywords in English
Not available
Abstract in English
This thesis develops in the area of Computer Vision, focusing in the problem of stereo vision. This process consists of matching two or more images, in a such way as to obtain the three-dimensional reconstruction of the object. More specifically, the curvature information along the contour is used as a similarity measure for the calculation of the conjugated points in stereo imaging. In this context, a platform was developed to generate stereo images. The objective of this plataform is to analyze and validate the considered methodology, and to compare it with representative alternative approaches. The stereo image generator avoids or allows several noise types, such as those related to the illumination of the scene and imprecisions in the calculation of the gauging cameras coefficients, independently of the resolution of the image
 
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Publishing Date
2014-12-02
 
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