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The language of deaf and dumb which uses body parts to convey the message is known as sign language. Here, we are doing a study to convert speech into sign language used for conversation. In this area we have many developed method to recognize alphabets and numerals of ISL (Indian sign language). There are various approaches for recognition of ISL and we have done a comparative studies between them...
Cloud computing is an internet based that provides shared resources on demand and manage them like networks, storage, servers, applications and services which requires optimum effort of management. Migration of virtual machine is gaining more importance today to improve utilization of resources, load balancing of processing nodes, isolation of applications, tolerating the faults in virtual machines,...
The Direction of Arrival (DOA) technology and researches are evolving areas in array signal processing. Biomedicine, sonar, radar, seismology, astronomy communication and earthquake widely use this estimation. We receive an incoming wave by sensing an array or a set of arrays, this sensed wave can be processed to derive many related estimation information of the associated wave. The Direction of arrival...
In this paper, we develop a multiple-input-multiple-output (MIMO) Wi-Fi antenna for mobile application. The MIMO antenna system consists of two monopoles of meander-line structure. The separation between two antenna elements is 20 mm which is approximately 0.33λ0 at 5 GHz. Two U-shaped slots are used to produce defective ground structure (DGSs) to reduce the mutual coupling between two monopoles....
In an application of which processes an image, the method used widely CE referred as term Contrast of Enhancement is HE Histogram of Equalization. An algorithm for this may be effortlessly executed; even so, it has a tendency to transfigure the image brightness to the center point of scale of gray level. This document shows the modification scheme of a histogram which is elementary to take care of...
Active noise control (ANC) system based on adaptive algorithm is an effective technique for acoustic noise reduction. FxLMS is a fairly robust algorithm but it gives inferior performance when secondary path is time varying, as a result, online secondary path modeling has been used. A variable step-size least mean square (VSS-LMS) algorithm with noise power scheduling is implemented in this paper to...
The DOA estimation in array signal processing is one of the important and emerging research area. The effectiveness of this direction of arrival estimation greatly determines the performance of smart antennas. It works on the digitized output from each sensor array. The estimation results for coherent signals, broadband signals and multiple signals are of greater consideration. Various information...
As the educational organizations worldwide are moving towards bringing education experience on internet, via Massive Open Online Courses (MOOCs) on Massive Open Online Education Platforms (MOOEPs), the retention of the enrolled students throughout the course is still a huge challenge. Although the online education has an immensely noble aim, i.e., to provide free\less expensive quality education to...
In this paper, we present a new approach for the enhancement of a highly underexposed color image using a power-law transformation operator. A function called exposure [1] is used to measure the intensity exposition of the image. This function facilitates the estimation of highly underexposed region of the given image. The chromatic information of the color space is decoupled from the achromatic information...
Owing to the dynamic nature of the web, it is difficult for search engine to find the relevant documents to serve a user query. For this purpose, search engine maintains the index of downloaded documents stored in the local repository. Whenever a query comes search engine searches the index in order to find the relevant matched results to be presented to the user. The quality of the matched result...
Uninterrupted network operation in field sensing activities such as pollution monitoring is a big challenge, as the pollution sensors could be quite power hungry. One way to keep the network functioning is to recharge the nodes periodically via radio frequency energy transfer, which can be achieved by using a mobile robot that acts as an energy source and a data sink. Given a set of sensors deployed...
The Quadrature Phase Shift Keying(QPSK) demodulator being presented here is designed based on Modified Costas loop technique to demodulate data rates upto 2 × 200Mbps. This paper highlights the design challenges involved in handling very high data rates in the analog domain with minimum cross-talk between I & Q chains and distortion in the demodulated signal. This paper also discusses about the...
A Brain Computer Interface (BCI) is a system that allows direct communication between a computer and the human brain. Though the main application for BCIs is in rehabilitation of disabled patients, they are increasingly being used in other application scenarios as well. Most of the current BCI systems are based on personal computers. However, there is an increased interest in implementing BCIs for...
Electrocardiogram signals are examined for accurately diagnosing the heart abnormalities. Different signal processing techniques have been applied on these signals to interpret and detect the heart diseases. Considering the inherent self similar pattern of ECG signals as a signature for normal behaviour, the present work explores the usefulness of the associated Hurst exponent as a means for characterizing...
The organization and retrieval of information from hyper-linked documents is a challenging task for search engine expected to satisfy user queries with relevant content in first few top results displayed to the user. This arrangement implies in need of maintaining index of relevant context based pages. This paper provides a novel technique for indexing the web documents based on the context of keywords...
WiMAX (Worldwide Interoperability for Microwave Access) is emerging as one of the most promising technology for wireless communication network in metropolitan areas today. It is designed to provide different services such as voice, data and video with different type of QoS(Quality of Service). A scheduling scheme plays a very important role to achieve the QoS requirement. There are scheduling algorithms...
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