Vol 2 Issue 3 July 2014-September 2014

Abstract: This paper proposes an automatic segmentation method which effectively combines Active Contour Model, Live Wire method and Graph Cut approach (CLG). The aim of Live wire method is to provide control to the user on segmentation process during execution. Active Contour Model provides a statistical model of object shape and appearance to a new image which are built during a training phase. In the graph cut technique, each pixel is represented as a node and the distance between those nodes is represented as edges. In graph theory, a cut is a partition of the nodes that divides the graph into two disjoint subsets. For initialization, a pseudo strategy is employed and the organs are segmented slice by slice through the OACAM (Oriented Active Contour Appearance Model). Initialization provides rough object localization and shape constraints which produce refined delineation. This method is tested with different set of images including CT and MR images (3D image) and produced perfect segmentation results.

Keyword: Oriented Active Contour Appearance Model, Active Contour Model, Computed Tomography, Live Wire method, Graph Cut approach.

Title: CLG for Automatic Image Segmentation

Author: Christo Ananth, S.Santhana Priya, S.Manisha, T.Ezhil Jothi, M.S.Ramasubhaeswari

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: Increasing growth of sub-micron technology in the semiconductor industry has resulted in the difficulty of VLSI testing for designers who always look for simple, regular and cascadable logic structure to realize a complex function. A system composing of cells interconnected in a regular manner whose behavior advances in time in discrete steps is called Cellular Automata (CA).  The main goal of this paper is to analyze CA for built in test pattern generation and analyze the test response, hence minimizing the problems related to VLSI testing. Further, Linear Feedback Shift Register (LFSR) and CA are compared. Also, efficient test patterns using CA are explained, along with a plan to improve energy conservation in CA and to generate a power test in order to check the fault coverage.

Keywords: Built in Self-Test, Cellular Automata, Linear Feedback Shift Register, Signature Srutinization, Test Pattern Generator and Analyzer.

Title: CELLULAR AUTOMATA FOR BUILT IN TEST PATTERN GENERATION AND TEST RESPONSE ANALYZER

Author: Harshala Patil, Shyam Sunder Padhy

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract:  The massive amount of data required for images is a primary reason for the development of many sub areas within the field of computer imaging such as image segmentation and compression. Whatever may be the way of transmission, the data tends to get noisy and thereby the further processing does not lead to good results. Hence, it is very essential to keep the data close to originality. In order to achieve this in terms of the concerned work, wavelet transforms have been applied: Discrete wavelet transform and EEMD. In this thesis, a new technique which is combination of Enhanced Empirical Mode Decomposition (EEMD), has been presented along with the standard wavelet thresholding techniques like hard thresholding to denoise the image.

Keywords:  EEMD, Hard Thresholding.

Title: Image Denoising Using Dwt-EEMD Algorithm

Author: Neha, Shikha Khera

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract:  This paper proposes a method for image denoising in the filter domain based on the characteristics of the Empirical Mode Decomposition (EMD) and the wavelet technique. The proposed method uses the EMD to the decomposition and double Density wavelet to filter components. Our experimental results show that these image denoising methods are more efficient than the wavelet denoising method. Finally, the PSNR (peak signal noise ratio) and the visualization of the denoising image are used as performance comparison indexes.

Keywords:  Double Density Wavelet, Empirical Mode Decomposition, PSNR, image denoising.

Title: Review Report of Image Processing Using EEMD Algorithm

Author: Neha, Shikha Khera

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: Sinusoidal pulse width modulation (SPWM) and space vector pulse width modulation (SVPWM) are the most popular modulation strategies for Multi level inverters. This paper provides the theoretical analysis and simulation results of SPWM and SVPWM for three level inverter. Also this paper gives comparison between three level SVPWM & SPWM inverter. This paper concludes that SVPWM can produce about 15% higher output voltage and also it utilizes DC bus voltage more efficiently and generates less harmonic distortion when compared with SPWM technique. 

Keywords:  SVPWM, SPWM, THD, NPC.

Title: Simulation and Comparison of Three Level Inverter Using SVPWM & SPWM

Author: Lavanya Komma,  Rangavalli Vasa

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: this paper presents the comparison of existing low voltage distribution system with proposed high voltage distribution system in terms of losses. The study is based on a real low voltage agricultural feeder in Punjab state. The investigation  is carried out to determine the losses in the existing  low voltage (LT) distribution  system  and then converting  this low voltage distribution  system  to proposed  high voltage distribution  system  (HVDS)  by replacing the one  large  transformer  of 100  KVA with  various  transformers  of small  rating  and then determining the reduction in losses in terms of units and annual savings in terms of rupees due to proposed method. To check the feasibility of the proposed work, the annual saving and payback period of the proposed method is also determined.

Keywords: Annual Savings; Feeder; High Voltage Distribution System; Payback Period.

Title: Improvement in Voltage Profile and Loss Minimization Using High Voltage Distribution System

Author: Amit Dembra, A.K. Sharma

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: This article gives you about the wireless transmission of electricity (generally called as witricity). This witricity may look futuristic but this will be new and innovative technology that is turning heads. One can imagine future free of chargers, wires (electric lines), cables etc., and this can be seen in a near future. Like WIFI zones, there will be witricity zones or electricity hotspots named as QI (originated from Chinese word ‘CHI’ which means virtual energy). This transmission of electricity can be take place by the resonance and mutual induction in the form of micro waves and hence electricity can reach any place without a wire spaghetti. This is the future and can be promised by witricity.

Keywords: Witricity, Mutual Induction, Resonance, Microwaves, Rectenna.

Title: WIRELESS TRANSMISSION OF ELECTRICITY (WITRICITY)

Author: Soma Sekhar Reddy.N

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: The applications of Wireless Sensor Networks (WSNs) comprise a wide variety of scenarios. One of the limitations of WSN is their inherent limited energy resource and is the main design criterion for routing data in WSN. The network is composed of a significant number of nodes deployed in an extensive area in which not all nodes are directly connected, here the source nodes or intermediate nodes select a next node to forward the data to the destination based on different criteria, the data exchange is supported by multi hop communications. Routing protocols are in charge of discovering and maintaining the routes in the network. However, the appropriateness of a particular routing protocol mainly depends on the capabilities of the nodes and on the application requirements. So here we study various data forwarding techniques and we analyze the energy-efficiency and the useful lifetime of the system. This paper presents a review of the main routing protocols proposed for wireless sensor networks.

Keywords: Wireless sensor network, distance based, energy based and multiple criterions based, energy efficiency.

Title: A Short Survey on Multi-Criterion optimization of Data forwarding Technique in Wireless Sensor Networks

Author: C.D Rachana, Seetha Rama Raju Sanapala

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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