2003
DOI: 10.1109/tip.2003.814242
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A well-balanced flow equation for noise removal and edge detection

Abstract: In this paper, an anisotropic nonlinear diffusion equation for image restoration is presented. The model has two terms: the diffusion and the forcing term. The balance between these terms is made in a selective way, in which boundary points and interior points of the objects that make up the image are treated differently. The optimal smoothing time concept, which allows for finding the ideal stop time for the evolution of the partial differential equation is also proposed. Numerical results show the proposed m… Show more

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Cited by 93 publications
(87 citation statements)
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References 19 publications
(27 reference statements)
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“…The balance between these terms is carried out in a selective manner on the image, where the edge and the uniform region are treated in different manners. This approach was presented by Barcelos et al (2003) The function g(s) ≥ 0 is a nonincreasing function and satisfies the conditions: g(0) = 1 and g(s)→0, when s→∞. The function g most commonly used is:…”
Section: Initial Representation Of the 3d Imagementioning
confidence: 99%
“…The balance between these terms is carried out in a selective manner on the image, where the edge and the uniform region are treated in different manners. This approach was presented by Barcelos et al (2003) The function g(s) ≥ 0 is a nonincreasing function and satisfies the conditions: g(0) = 1 and g(s)→0, when s→∞. The function g most commonly used is:…”
Section: Initial Representation Of the 3d Imagementioning
confidence: 99%
“…Gostaríamos de mencionar ainda, o modelo de Mumford-Shah, o modelo de Chen, Vermuri e Wang [8] e a difusão balanceada dada no modelo proposto por Barcelos, Boaventura e Silva Jr em [3].…”
Section: Modelos Variacionaisunclassified
“…Procedimentos análogos foram adotados em [8] e [3]. Em [8] os autores propuseram o estudo da seguinte difusão degenerada não linear…”
Section: Length(b)unclassified
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