Chattering alarms, which repeatedly and rapidly make transitions between alarm and normal states in a short time period, are the most common form of nuisance alarms that severely degrade the performance of alarm systems for industrial plants. One reason for chattering alarms is the presence of oscillation in process signals. The paper proposes an online method to promptly detect the chattering ...

Streaming video quality dependents in part upon the video encoding process. The Frequency Domain Motion Estimation process is commonly used to accelerate the entire video encoding process. It is used to reduce the encoding time by increasing the Motion Estimation Time Saving. The Combinational-Discrete Cosine Transform consumes most of the time of the Frequency Domain Motion Estimation video en...

An approach for three robust and semi-blind digital video watermarking algorithms has been proposed in this paper. These algorithms are based on hybrid transforms using the combination of Discrete Cosine Transform and Singular Value Decomposition (DCTSVD), Discrete Wavelet Transform and Singular Value Decomposition (DWT-SVD) and Discrete Wavelet Transform, Discrete Cosine Transform and Singular...

Low-power design is one of the most important challenges to maximize battery life in portable devices and to save the energy during system operation. Discrete Cosine Transform (DCT) is widely used in image and video compression standards. In this paper, we review on a low-power DCT (Discrete Cosine Transform) architecture using varies techniques. Discrete Cosine Transform (DCT) is one of the mo...

This paper presents an algorithm for the low power implementation of the Discrete Cosine Transform on Single multiplier CMOS DSPs. The algorithm reduces power by a combination of using shift operations, where possible, and manipulating bit-correlation between successive cosine coefficients applied to the input of the multiplier section such that the effective switched capacitance is reduced. Th...

Biometrics as a method for identification systems has been widely used for its robustness; one of its used is based on human palm. Palm has unique characteristics to be used in personal identification because of it features. In this paper the palm features are extracted using Discrete Cosine Transform energy features, Wavelet Transform energy features and Sobel Code to obtain feature vectors an...

The eecient implementation of the discrete cosine tansform is discussed in this paper. The architecture, that is used, is a systolic processor array consisting of orthonormal rotations. The angles of these rotations are denoted by ij. With respect to a simple VLSI implementation an approximation of the DCT is realized. The approximation is obtained by using approximate (orthogonal) rotations. I...

A new motion estimation scheme, Discrete-Cosine/SineTransform Based Motion Estimation (DXT-ME) utilizing the principle of orthogonality of cosine and sine functions to estimate, in the transform domain, displacements from the motion information contained in the pseudo-phases of the images of moving objects, is proposed. The computational complexity of this method is only O ( N 2 ) + O d c t for...

The main objective of the method is to provide the interesting part of the medical image on which different treatements are to be implemented. In medical image when some portion of image is to be selected, then ROI is selected with the help of Discrete Cosine Transform. It is used with the ROI technique to compress the medical image to remove the blocking effect. The different filters will be a...

In recent times the integration of video, audio and data in telecommunication devices has revolutionized the world communication. It has proven to be useful to almost every industry: the corporate world, entertainment industry, multimedia, education and even many household domestic appliances. The major problems encountered with these applications are the high data rates, high bandwidth and lar...