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Kapade S.D.,Suresh Gyan Vihar University | Khairnar S.M.,Maharashtra Academy of Engineering | Chaudhari B.S.,International Institute of Information Technology Bangalore
2014 International Conference on Information Communication and Embedded Systems, ICICES 2014 | Year: 2014

Image segmentation plays vital role in computer vision for image retrieval, visual summary, image base modeling, and for many other purposes. Despite many years of research and significant contributions, image segmentation is still a very challenging task to suit for variety of applications. Among the different segmentation approaches, graph theoretical approach is the most popular since it has capabilities of organizing the image elements into accurate mathematical structures and makes the formulation computationally efficient This paper critically reviews recent graph based segmentation methods along with their detailed analysis, experimental performance and evaluation on the basis of Berkeley benchmark The study and evaluation is useful in improving the performance of existing methods as well as helpful in the development of new methods. © 2014 IEEE. Source

Thakare B.S.,Maharashtra Academy of Engineering | Dube M.R.,Vishwakarma Institute of Technology
2012 International Conference on Computer Communication and Informatics, ICCCI 2012 | Year: 2012

Models are important artifacts in the software development life-cycle and often to produce results on which multiple developers has to work collaboratively, especially with the adoption of Model-Driven Development. If a modeling task is distributed, it will frequently be necessary to merge models developed by different team members. When multiple developers work over diagrams of modules of the same project while integrating those modules conflicts can occur and need to be resolved by merging. Existing approaches for model merging require developers to solve all conflicts manually before commit. Sometimes conflicts increases more because of manual commitment. And existing approaches while merging make assumptions about the types of model to be merged, and the nature of the relationship between them. In this paper, we propose a simple model merging approach for two different diagrams of same model. This facilitates resolution of conflicts and merging. In this paper, we describe proposed algorithm for transforming different software design models to XML and vice versa and we also describe proposed algorithm for model merging along with experimental results. © 2012 IEEE. Source

Chavan Y.V.,Maharashtra Academy of Engineering | Mishra D.K.,S.G.S.I.T.S.
Journal of Optics (India) | Year: 2011

This paper deals with the analysis of the comparator circuit for CMOS technology using inverters. The CMOS based cascaded comparator, worked on the level of threshold setting of CMOS transistors referred as Threshold Inverter Quantizer, TIQ. TIQ has many advantages over the conventional op-amp based comparator and hence can be effectively use for processing the optical signals for the application of Artificial Silicon Retina, ASR. In this paper TIQ analysis presented provides the background for using it in the applications like computer vision, machine vision and surveillance etc. PMOS and NMOS are used for the TIQ. These transistors are designed by the suitable selection of the design parameter 'W' and 'L' to meet the Voltage Threshold Point, VTP on Voltage Threshold characteristics, VTC. VTP act as the dc operating point and is very sensitive and important in the ASR. Operating point and the design parameters 'W' and 'L' for PMOS and NMOS are analyzed and also simulated using Micro-wind-DSCH. © Optical Society of India 2011. Source

Chavan Y.V.,Maharashtra Academy of Engineering | Mishra D.K.,S.G.S.I.T.S.
Journal of Optics (India) | Year: 2010

The photo-detection is important in all the image sensory system. The choice of photo-detector is of great importance in the dynamic application. The photo-detector on detection of light generates photocurrent which can be further used to evaluate equivalent voltage. This capability of generating voltage decides the quality of the photodetector. This paper does the analysis for the feasibility of the photodiode as the best choice amongst the various photo-detectors for the vision system. A converging lens is the prime constituent at the input of the system. Therefore, this paper has two section one for the modeling the lens and other for modeling and analysis of photo-detectors. In the first section it deals with the modeling of optical parameters. The physical parameters affecting the optical parameters are considered constant. In the second part it deals with the comparative study of the photo-detectors for pixel of image sensor. In this, modeling of the photodiode as photo-detector is done for simulated results and then performance analysis is done. © 2010 Optical Society of India. Source

Dange H.V.,Maharashtra Academy of Engineering | Gondi V.K.,Wipro Technologies
Proceedings of 2011 International Conference on Process Automation, Control and Computing, PACC 2011 | Year: 2011

Home automation is a common field of interest for engineers, researchers and of course, consumers. Today, home automation systems are commonly found in many homes across many countries around the world. Such systems not only offer a high level control over home appliances, but also try to reduce the wastage of electricity. Powerline communication (PLC) is a popular technique employed in home automation systems that reuses household electrical wiring for communication. But the current systems have some drawbacks and need improvement. Our paper describes the design of a next generation home automation system that will provide great features to consumers as well as electricity distributors. The main features of this system are web based control and data-logging facility. © 2011 IEEE. Source

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