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» On the Hilbert Transform of Wavelets
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DICTA
2003
13 years 9 months ago
Shift-invariance in the Discrete Wavelet Transform
In this paper we review a number of approaches to reducing, or removing, the problem of shift variance in the discrete wavelet transform (DWT). We describe a generalization of the ...
Andrew P. Bradley
COMPGEOM
1997
ACM
13 years 12 months ago
A Wavelet Approach to Foveating Images
Motivated by applications of foveated images in visualization, we introduce the foveation transform of an image. We study the basic properties of these transforms using the multir...
Ee-Chien Chang, Chee-Keng Yap
ISCAS
2007
IEEE
202views Hardware» more  ISCAS 2007»
14 years 2 months ago
A VLSI Architecture for a Fast Computation of the 2-D Discrete Wavelet Transform
In this paper, an efficient VLSI architecture for a fast computation of the 2-D discrete wavelet transform (DWT) is proposed. The architecture employing a three-stage cascade in p...
Chengjun Zhang, Chunyan Wang, M. Omair Ahmad
ISCAS
2003
IEEE
123views Hardware» more  ISCAS 2003»
14 years 29 days ago
Classification of power system faults using wavelet transforms and probabilistic neural networks
Automation of power system fault identification using information conveyed by the wavelet analysis of power system transients is proposed. Probabilistic Neural Network (PNN) for d...
Harish K. Kashyap, U. Jayachandra Shenoy
ICASSP
2008
IEEE
14 years 2 months ago
Optimized distributed 2D transforms for irregularly sampled sensor network grids using wavelet lifting
We address the design and optimization of an energy-efficient lifting-based 2D transform for wireless sensor networks with irregular spatial sampling. The 2D transform is designe...
Godwin Shen, Antonio Ortega