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Title: Signal and image restoration using shock filters and anisotropic diffusion
Authors: Alvarez, Luis 
Mazorra, Luis 
UNESCO Clasification: 220990 Tratamiento digital. Imágenes
120601 Construcción de algoritmos
120602 Ecuaciones diferenciales
Keywords: Anisotropic diffusion
Edge enhancement
Heat equation
Shock filters
Issue Date: 1994
Journal: SIAM Journal on Numerical Analysis 
Abstract: The authors define a new class of filters for noise elimination and edge enhancement by using shock filters and anisotropic diffusion. Some nonlinear partial differential equations used as models for these filters are studied. The authors develop recursive and unconditional stable schemes which drastically reduce the computational effort of the algorithms. A new fast recursive approach to linear Gaussian filters is also shown by using the heat equation.
ISSN: 0036-1429
DOI: 10.1137/0731032
Source: SIAM Journal on Numerical Analysis [ISSN 0036-1429], v. 31 (2), p. 590-605
Appears in Collections:Artículos
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