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Novel circular fractal antenna array
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Traditional antennas work well only for one resonant frequency and using multiple antennas for different frequencies is a complex task, therefore multiband circular fractal antenna was designed which have a small size and ... -
Novel filtering based approach for epoch extraction
(Dhirubhai Ambani Institute of Information and Communication Technology, 2015)Accurate estimation of source excitation features is important in many speech analysis-synthesis applications. According to source-filter theory, separating source features from speech signal is basically a deconvolution ... -
Novel local oscillator circuit for sub-harmonic mixer
(Dhirubhai Ambani Institute of Information and Communication Technology, 2005)Direct Conversion RF transceiver is the enabling technique for the next generation cellular and personal communication devices striving for miniaturization, long life of battery and cost effectiveness. Existing techniques ... -
Novel nonlinear prediction-based features for spoofed speech detection
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)Automatic Speaker Verification (ASV) systems are prone to various spoofing attacks.<p/>Spoofing is one type of technique in which fake speech signal is given to<p/>the ASV system to get the access of that system without ... -
Novel techniques for auto-inpainting in heritage reconstruction
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)Digital reconstruction of ruined historic monuments and heritage sites can help in visualizing how these may have existed in the past. Also, such a process requires no physical alteration to the existing monuments. This ... -
Numeral identification of handwritten indian languages
(Dhirubhai Ambani Institute of Information and Communication Technology, 2014)Automatic Speaker Verification (ASV) systems are prone to various spoofing attacks.Spoofing is one type of technique in which fake speech signal is given tothe ASV system to get the access of that system without the ... -
O laal meri : jhulelal and the Sindhi identity
(Dhirubhai Ambani Institute of Information and Communication Technology, 2020)In a discussion with my professors I told them about my interest to research and work on my own Sindhi culture in which I’ve been born and brought up but neither was I fluent in speaking our native language nor did I knew ... -
OBD based emission test and fleet management system
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)"Electronics is getting indispensable part of the vehicluar technology. With the advancement in the vehicular technology, On-board diagnostic (OBD) emission checks are included in Inspection/ Maintenance (I/M) program. ... -
Object classification in images using information slicing
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)Human visual system, in real world, identifies objects by their shapes, sizes and colors. More than often we identify objects around us specifically by using contextual knowledge of the objects. For example, an area of ... -
Object classification of remotely sensed images using deep learning
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)Object classification of remotely sensed images is one of the fundamental tasksto perform various operations such as land planning, traffic monitoring, urbanmonitoring, disaster control and weather forecasting, etc. There ... -
Object Recognition using Self Learned Features
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)A great deal of research has been centered around developing algorithms forlearning features from unlabelled information. Much advance has been made onbenchmark datasets by utilizing progressively complex unsupervised ... -
Object segmentation in still camera videos
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)The goal of object segmentation is to simplify and change the representation of an image into more meaningful so that it can easily analyse. Segmentation is the process of partitioning the digital image into multiple ... -
Object-background segmentation from video
(Dhirubhai Ambani Institute of Information and Communication Technology, 2015)Fast and accurate algorithms for background-foreground separation are an essential part of <p/>any video surveillance system. GMM (Gaussian Mixture Models) based object segmentation <p/>methods give accurate results for ... -
Objective evaluation of speech quality of text-to-speech (TTS) synthesis systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2013)Since the use of Text-to-Speech (TTS) technology is increasing, there is a high demand of TTS system that can produce natural and intelligible voice in any environments. In order to improve speech synthesis system, synthesized ... -
Oblique projection operator
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)This thesis presents the understanding usefulness of Oblique Projector in signal processing like signal recovery, signal representation and reconstruction. This thesis also presents the different recursive oblique projector ... -
On curve reconstruction in Riemannian Manifolds: ordering motion frames
(Dhirubhai Ambani Institute of Information and Communication Technology, 2012)In this work we generalize the computational geometric curve reconstruction approach to curves embedded in Riemannian manifolds. We prove that the minimum spanning tree, given a sufficiently dense sample, correctly ... -
On designing DNA codes and their applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)Bio-computing uses the complexes of biomolecules such as DNA (Deoxyribonucleic acid), RNA (Ribonucleic acid) and proteins to perform the computational processes for encoding and processing the data. In 1994, L. Adleman ... -
On Field Soil Testing using Wireless Sensor Network
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)Soil nutrients analysis is an essential part of sustainable and productive agriculture.In order to get the effective and potential yield of crops, soil health card containingthe detailed report of soil fertility status are ... -
On heterogeneous distributed storage systems: bounds and code constructions
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)In Distributed Storage Systems (DSSs), usually, data is stored using encoded packets on different chunk servers. In this thesis, we have considered heterogeneous DSSs in which each node may store a different number of ... -
On insider attack in distributed file systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)Due to heavy use of internet, mobiles, sensors etc. Data is growing rapidly day-by-day. However traditional database systems fail to store such a huge semi structured or unstructured data which raises the need for distributed ...