Title
Use of the angle information in the wavelet transform maxima for image de-noising
Abstract
In this article, a new method of de-noising is proposed, based on the wavelet maxima. The originality of this method is in the use of the gradient angle in a multi-scale framework as the discriminatory parameter. In order to use to the best advantage the angle information, the multi-scale gradient decomposition schema proposed by Mallat is modified thus enabling a computation of uncorrelated partial derivatives. From this computation, a selection method of multi-scale contours is put forward, having a lesser algorithmic complexity than processings based on the gradient norm. The performance of this new algorithm is illustrated using simulated data and angiography images.
Year
DOI
Venue
2000
10.1016/S0262-8856(00)00048-2
Image and Vision Computing
Keywords
Field
DocType
Image de-noising,Multi-scale gradient,Wavelet maxima transform,Angular dispersion,Lipschitz's regularity
Harmonic wavelet transform,Pattern recognition,Second-generation wavelet transform,Artificial intelligence,Discrete wavelet transform,Cascade algorithm,Stationary wavelet transform,Wavelet packet decomposition,Mathematics,Wavelet,Wavelet transform
Journal
Volume
Issue
ISSN
18
13
0262-8856
Citations 
PageRank 
References 
1
0.40
6
Authors
2
Name
Order
Citations
PageRank
P. Carré110.40
C. Fernandez-Maloigne2364.62