This paper proposes a new scheme for light field compression that incorporates disparity compensation into wavelet decomposition based on lifting. Disparity-compensated wavelet decomposition is firstly applied to exploit similarity between different views. The resulting coefficient images are encoded using shape-adaptive discrete wavelet transform followed by a modified SPIHT coder. The resulta...

In this paper, a Wavelet Controller analogous to a Proportional-IntegralDerivative controller is proposed. The control strategy is based on the multi-resolution decomposition of error signal using Wavelet Transforms. The output from a system represents the cumulative effect of many underlying phenomena such as process dynamics, measurement noise, effects of external disturbances etc., which man...

This article develops a wavelet decomposition of a stochastic process which parallels a time{localized Cram er (Fourier) spectral representation. We provide a time{scale instead of a time{frequency decomposition and, hence, instead of thinking as scale in terms of \inverse frequency" we start from genuine time{scale building blocks or \atoms". Using this class of locally stationary wavelet (LSW...

In this paper, a wavelet packet decomposition (WPD) based real-time transcale linearquadratic-Gaussian (LQG) tracking control algorithm is given for a class of discrete stochastic systems, which is developed with the state-space models of wavelet packet coefficients at the coarsest scale decomposition layer established by Haar WPD. The WPD-based transcale control algorithm provides a compromise...

Introduction Wavelets and Wavelet transforms have been one of the most important developments in image analysis over the last decade especially for applications such as data com pression segmentation and vision The wavelet transform WT has been described in a num ber of di erent ways by various authors It can be described as a modi cation of the short time Fourier transform the decomposition of...

Abstract. We investigate the use of compactly supported divergence-free wavelets for the representation of solutions of the Navier-Stokes equations. After reviewing the theoretical construction of divergence-free wavelet vectors, we present in detail the bases and corresponding fast algorithms for two and three-dimensional incompressible flows. We also propose a new method to practically comput...

Article history: Available online 7 January 2010

An accurately evaluate about the zone number and position of the gas zone is put forward in this paper. It provides the reliable basis for developing natural gas through synthetically analyzing the result of carrying on wavelet de-noising and wavelet package denoising disposal simultaneously to the density porosity curve and neutron porosity curve. If there is natural gas in the void of undergr...

A new method for implementing complex wavelet transform (CWT) based on analog sampled-data circuit and singular value decomposition (SVD) algorithm is presented. To begin with, the real and imaginary parts functions of the complex wavelet base are approximated by using SVD algorithm. As the main advantage of this approximation approach is its computational simplicity and general applicability. ...

| Due to limitations in bandwidth or storage space, many applications require compression of digital images. One of the main hindrances to progress in the area of image communications is the large amount of information contained in an image. In this paper we propose a wavelet-based image compression technique which incorporates some of the properties of the human visual system (HVS). A new wave...