Digital Watermarking is a method or technology that hides information in to a digital media. It is a two way process which involves embedding and extraction. Video watermarking technique is somehow similar to image watermarking. This mechanism is used to overcome the problem of security, copyright and content authentication of the digital media. The objective of this scheme is to create a water...

For each pair (n, k) with 1 ≤ k < n, we construct a tight frame (ρλ : λ ∈ Λ) for L (R), which we call a frame of k-plane ridgelets. The intent is to efficiently represent functions which are smooth away from singularities along k-planes in R. We also develop tools to help decide whether in fact k-plane ridgelets provide the desired efficient representation. We first construct a wavelet-like tig...

We propose an integrated wavelet-based framework of the active contour model(snake) for segmentation and motion tracking of deformable objects in video sequences. The input image frame is represented by means of wavelet transform. First, the moduli of wavelet transform coe cients are used in a multi-resolution motion estimation process to nd the initial snake contour in the current frame. The p...

In this paper, a technique is presented that incorporates an irregular triangle mesh into wavelet-domain motion estimation and compensation using a shift-invariant redundant wavelet transform. The main contribution of this work resides in a demonstration that triangle-mesh motion estimation and compensation can be deployed more effectively in the redundant-wavelet domain thanks to a simple corr...

A wavelet is a special case of a vector in a separable Hilbert space that generates a basis under the action of a collection, or system, of unitary operators. We will describe the operator-interpolation approach to wavelet theory using the local commutant of a system. This is really an abstract application of the theory of operator algebras to wavelet theory. The concrete applications of this m...

In this paper, we present the OB-SPECK algorithm (objectbased set partitionedembedded block coder) for wavelet coding of arbitrary shaped video objects. Based on the SPECK algorithmintroduced in [1], the shape informationof the video object in the wavelet domain is integrated into the coding process for efficient coding of a video object of arbitrary shape. The whole coding system is a motion p...

Spectrum has valuable resource in wireless communication. In wireless communication some spectrum is waste due to uses of cyclic prefix (cp) in FFT multicarrier sampling. In place of FFT used DFT and wavelet transform function for removal of cyclic prefix. Wavelet based OFDM, particularly using DWT and WPT-OFDM as situations for Fourierbased OFDM with the focus on impulse noise effects. We begi...

This paper presents a novel framework of motion compensated pre&ction(MCP) techniques in the wavelet domain for high performance video coding. Our analysis reveals fundamental limitations with previous ad-hoc wavelet-based video coders from motion accuracy point of view. We demonstrate that the phase associated with any wavelet transform carries critical information of the motion accuracy and p...

The main goal of the paper is to show that wavelet transforms and packets have the multiparametric representation in the form of a product of the rotation Jacobi matrices. These representations we call the third and the fourth canonical multiparametric form. Each multiparametric wavelet transform (MPWT) depends on several free Jacobi parameters. When parameters are changed multiparametric trans...

New ideas were introduced in [3] to treat the problem of connectivity of Parseval frames. With these ideas it was shown that a large set of Parseval frames is arcwise connected. In this article we exhibit a larger class of Parseval frames for which the arcwise connectivity is true. This larger class fails to include all Parseval frames.