Effect of Noise on Gradient Systems

Abstract :-
In this paper, we generalize our work to perturbed gradient systems (PGS). For original gradient systems (GS), the change of a vector x(t) at time t is defined as the gradient vector of a function F(x) times a small negative constant. For PGS, it is assumed that the vector x(t) is perturbed by mean zero Gaussian noise. The noise can either be multiplicative or additive. In this paper, the corresponding energy functions for both cases are derived. It is found that their energy functions are very difference from F(x). Continue reading Effect of Noise on Gradient Systems

Virtual Clock Scheduling Algorithm for Video Streaming

Abstract :-
Algorithms used for scheduling play a major role in providing quality of service in video streaming. This paper describes a simulation environment that has been designed combining network simulator ns2 with video codec to predict the quality of service. Virtual clock scheduling algorithm has been applied to evaluate the performance metrics and compared with the weighted round robin (WRR) and Deficit round robin (DRR) scheduling policies. Continue reading Virtual Clock Scheduling Algorithm for Video Streaming

Analysis of Microarray Image Spots Intensity

Abstract :-
Microarray technology gives rise to a challenge to interpret the meaning of the immense amount of biological information formatted in numerical matrices from the expression levels of thousands of genes, possibly all genes in an organism. To meet this challenge various methods have been developed using both traditional and innovative techniques to extract, analyze and visualize gene expression data generated from DNA Chip. The large amount of information provided by microarray images requires automatic techniques to develop accurate and efficient processing. Continue reading Analysis of Microarray Image Spots Intensity

Gate Array Design of a Scalable Parallel-Accessible Memory Subsystem

Abstract :- This is Electronics project report on “Field-Programmable Gate Array Design of a Scalable Parallel-Accessible Memory Subsystem for Image Feature Extraction”. The purpose of this project is the creation of an advanced and efficient memory subsystem architecture that will improve the Haar processing frame rate without compromising the use of Field-Programmable Gate Array resources. Only a few hardware implementations and embedded system implementations have been published. Continue reading Gate Array Design of a Scalable Parallel-Accessible Memory Subsystem

Lifetime Estimation of Composite Bone Joint Screws

Bone screws are crucial elements in treating many types of open/closed fractures and arthroplasties in different joints in the body. The life time of many plates used in the fracture treatment are dependent on the screws function. The fracture of screws at any point of their lifetime will cause failure of the treatment for that specific pathology. This may lead to increase risk of new surgeries, osteomyelitis and less commonly septic arthritis. Continue reading Lifetime Estimation of Composite Bone Joint Screws

Blind Image Fidelity Assessment Using the Histogram

Abstract :-
An image fidelity assessment and tamper detection using two histogram components of the color image is presented in this paper. The histograms of the red and green channels of the to-be-protected image are embedded in the green and blue channels respectively. The embedded histogram gets destroyed whenever any sort of modification is made to the content of the image yielding to mismatch during the detection process. Continue reading Blind Image Fidelity Assessment Using the Histogram