Search Results - "Montefusco, L B"
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Edge-preserving wavelet thresholding for image denoising
Published in Journal of computational and applied mathematics (31-12-2007)“…In this paper we consider a general setting for wavelet based image denoising methods. In fact, in both deterministic regularization methods and stochastic…”
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Image compression through embedded multiwavelet transform coding
Published in IEEE transactions on image processing (01-02-2000)“…In this paper, multiwavelets are considered in the context of image compression and two orthonormal multiwavelet bases are experimented, each used in…”
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Shape preserving surface reconstruction using locally anisotropic radial basis function interpolants
Published in Computers & mathematics with applications (1987) (01-04-2006)“…In this paper we deal with the problem of reconstructing surfaces from unorganized sets of points, while capturing the significant geometry details of the…”
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The regularizing properties of anisotropic radial basis functions
Published in Applied mathematics and computation (15-07-2007)“…In the present work we consider the problem of interpolating scattered data using radial basis functions (RBF). In general, it is well known that this leads to…”
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On a class of matrices with low displacement rank
Published in Linear algebra and its applications (01-03-2001)“…A matrix A such that, for some matrices U and V, the matrix AU−VA or the matrix A−VAU has a rank which is small compared with the order of the matrix is called…”
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Radial basis functions for the multivariate interpolation of large scattered data sets
Published in Journal of computational and applied mathematics (01-03-2002)“…An efficient method for the multivariate interpolation of very large scattered data sets is presented. It is based on the local use of radial basis functions…”
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Journal Article Conference Proceeding -
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Fast surface reconstruction and hole filling using positive definite radial basis functions
Published in Numerical algorithms (01-07-2005)“…Surface reconstruction from large unorganized data sets is very challenging, especially if the data present undesired holes. This is usually the case when the…”
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An Iterative L-Based Image Restoration Algorithm With an Adaptive Parameter Estimation
Published in IEEE transactions on image processing (01-04-2012)“…Regularization methods for the solution of ill-posed inverse problems can be successfully applied if a right estimation of the regularization parameter is…”
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An application of fast factorization algorithms in Computer Aided Geometric Design
Published in Linear algebra and its applications (01-06-2003)“…Structured matrices play an important role in the numerical solution of practical problems, because it is possible to develop fast algorithms for their…”
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Fast Sparse Image Reconstruction Using Adaptive Nonlinear Filtering
Published in IEEE transactions on image processing (01-02-2011)“…Compressed sensing is a new paradigm for signal recovery and sampling. It states that a relatively small number of linear measurements of a sparse signal can…”
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Recursive properties of Toeplitz and Hurwitz matrices
Published in Linear algebra and its applications (15-04-1998)“…Banded Toeplitz and Hurwitz matrices are shown to be particular cases of a more general class of biinfinite matrices, called recursive matrices. The main…”
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Edge-driven Image Interpolation using Adaptive Anisotropic Radial Basis Functions
Published in Journal of mathematical imaging and vision (01-02-2010)“…This paper investigates the image interpolation problem, where the objective is to improve the resolution of an image by dilating it according to a given…”
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Some algebraic aspects of signal processing
Published in Linear algebra and its applications (15-11-1998)“…It has recently been shown in (M. Barnabei, L.B. Montefusco, Linear Algebra and applications 274 (1998) 367–388) that the algebraic-combinatorial notion of…”
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Nonlinear Filtering for Sparse Signal Recovery From Incomplete Measurements
Published in IEEE transactions on signal processing (01-07-2009)“…The problem of recovering sparse signals and sparse gradient signals from a small collection of linear measurements is one that arises naturally in many…”
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Multiwavelet analysis and signal processing
Published in IEEE transactions on circuits and systems. 2, Analog and digital signal processing (01-08-1998)“…In this paper we present some results and applications concerning the recent theory of multiscaling functions and multiwavelets. In particular, we present the…”
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An application of fast factorization algorithms in Computer Aided Geometric Design
Published in Linear algebra and its applications (2003)Get full text
Conference Proceeding -
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A parameter selection method for wavelet shrinkage denoising
Published in BIT (Nordisk Tidskrift for Informationsbehandling) (01-09-2003)Get full text
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Semi-orthogonal wavelet packet bases for parallel least-squares approximation
Published in Journal of computational and applied mathematics (05-10-1996)“…A generalization to the wavelet packet case of the semi-orthogonal wavelets given by C.K. Chui is presented and a simple numerical algorithm for their…”
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