Abstarct— This paper proposes a digital image watermarking of still images using self-kronecker product of orthogonal transforms and Singular Value Decomposition. Singular Value Decomposition is used due to its high stability and high image energy compaction in few numbers of singular values. Kronecker product of two transforms helps us to focus on only global features and not the local feature...

In this proposed method, the Tamil language texts are analyzed through the Morris-Pratt Algorithm as input image that filtered with Gabor filter for edge analysis. Then, it converted into unique strings from the text blocks. The text strings consist of text stroke to analyze the pattern. By using wavelet transform, the features of pattern are extracted and it undergoes for mapping with the text...

In this paper four different orthogonal functions have been used to approximate the optimal solution of linear time invariant (LTI) singular delayed systems. The idea is that the states and the input are expressed in terms of these orthogonal functions. The method simplifies the system of state equations into a set of algebraic equations which can be solved using a digital computer. The main ad...

This study introduces a novel unified framework for simultaneous denoising and compression of electric power system disturbance signals using sparse signal decomposition and reconstruction on overcomplete hybrid dictionary (OHD) matrix. In the proposed method, the power quality signal is first decomposed into deterministic sinusoidal components and non-deterministic components using the OHD mat...

This study introduces an effective hybrid optimization algorithm, namely Particle Swarm Sine Cosine Algorithm (PSSCA) for numerical function and automating optimum design of retaining structures under seismic loads. The new algorithm employs the dynamic behavior sine cosine functions in velocity updating operation particle swarm (PSO) to achieve faster convergence better accuracy final solution...

The goal of Iris recognition is to recognize human identity through the textural characteristics of one’s Iris muscular patterns. Iris recognition has been acknowledged as one of the most accurate biometric modalities because of its high recognition rate. Here performance comparison among various proposed techniques of Iris Recognition using the fractional coefficients of transformed Iris image...

To give exibility to the time-frequency resolution trade-o of orthonormal (ON) wavelet bases constructed by I.Daubechies [2, 1], recently multiplicityM ON wavelet bases(more generally tight frames (TFs)) have been constructedby several authors [3, 4, ?, 7, 12]. These generalizations ofthe multiplicity 2 ON wavelet bases of I. Daubechies, di erfrom the latter in that, whi...

The Fourier transform (FT) nicely represents a wiggling, sinelike data set with only a few peaks in the frequency domain. But while the FT is appropriate for simple stationary data like harmonic waves, complicated signals or images require more elaborate transforms. These transforms must catch fast local variations, detect blurred object contours, differentiate textures, and capture different s...

Direct digital synthesis (DDS) is a method to generate waveforms directly in the digital domain. In this method,the target waveforms are the sine and cosine ones. The Co-ordinate Rotational Digital Computer (CORDIC) algorithm configured in Rotation Mode (RM) can behave as a quadrature phase-to-amplitude converter that directly generates sine and cosine waveforms. The main advantage of using COR...

—In this paper, a fine frequency synchronization method with low complexity is proposed for Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) based Ultra-Wideband (UWB) systems. Low complexity is still one of the major difficulties in the design of fine frequency synchronizer for MB-OFDM UWB systems due to arctangent operations and Numerically Controlled Oscillator (NCO), both of...