Results 111 to 120 of about 157 (131)
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Fingerprint Compression by Ridgelet Transform

2008 IEEE International Symposium on Signal Processing and Information Technology, 2008
In the present paper, a concept of compression using block ridgelet transform is introduced. This kind of analysis/synthesis fingerprint representation takes the form of basis elements which exhibit very high directional sensitivity and are highly anisotropic.
Abdelhak Ouanane, Amina Serir
openaire   +1 more source

A Novel Ridgelet Kernel Regression Method

2005
In this paper, a ridgelet kernel regression model is proposed for approximation of multivariate functions, especially those with certain kinds of spatial inhomogeneities. It is based on ridgelet theory, kernel and regularization technology from which we can deduce a regularized kernel regression form.
Shuyuan Yang 0001   +3 more
openaire   +2 more sources

On the Combination of Ridgelets Descriptors for Symbol Recognition

2008
In this paper we propose an original solution to combine the scales of multi-resolution shape descriptors. More precisely, a classifier fusion scheme is applied to a set of shape descriptors obtained from the ridgelets transform. The Ridgelets coefficients are grouped into different descriptors according to their resolution.
Oriol Ramos Terrades   +2 more
openaire   +2 more sources

Digital Implementation of Ridgelet Packets

2003
Abstract The Ridgelet Packets library provides a large family of orthonormal bases for functions f ( x,y ) in L 2 ( dxdy ) which includes orthonormal ridgelets as well as bases deriving from tilings reminiscent from the theory of wavelets and the study of oscillatory Fourier integrals.
openaire   +1 more source

Ridgelets: estimating with ridge functions

Annals of Statistics, 2003
Emmanuel Candes
exaly  

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