Browsing Theses and dissertations by Title
Now showing items 240-259 of 1148
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Deep Learning based approach for Handwritten Gujarati Word Image Matching
(2021)Information retrieval from scanned handwritten digital copies is a very challenging task especially in Indian scripts like Gujarati due to the presence of joint and conjuct characters as well as matras, cursive nature and ... -
Deep learning based image super-resolution
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)Super-resolution is an algorithmic approach to increase the spatial resolution ofan image. In areas like medical imaging, satellite image processing, biometrics,robotics, text to speech conversion, optical character ... -
Deep Learning based Nuclei Segmentation in Histopathological Images: A perspective on Image Normalization
(Dhirubhai Ambani Institute of Information and Communication Technology, 2022)Histopathology is the diagnosis and study of the different tissues. For diagnosis of different diseases, there are parameters like nuclei count, anatomy of nuclei, etc. However, identifying these parameters manually is a ... -
Deep Learning for Severity Level-based Classification of Dysarthria
(2021)Dysarthria is a motor speech disorder in which muscles required to speak somehow gets damaged or paralyzed resulting in an adverse effect to the articulatory elements in the speech and rendering the output voice unintelligible. ... -
Deep learning techniques for speech pathology applications
(2020)Human-machine interaction has gained more attention due to its interesting applications in industries and day-to-day life. In recent years, speech technologies have grown rapidly because of the advancement in fields of ... -
Defending machine learning models against adversarial attacks using GANs
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)We have used Generative Adversarial Network (GAN) to defend against adversarial attacks. Pixel-wise and perceptual distance measures for images are used in the GAN training. We have used five different distance measures, ... -
Dekha andekha darbar : Documentary film
(Dhirubhai Ambani Institute of Information and Communication Technology, 2019)There's an old legend popular among the local folks of the Dangs district of Gujarat. It says that, when offered by the Britishers, the rajas or kings of Dang chose money over the rich and prosperous jungles of the region. ... -
Dekha andekhi: kaal aur kala
(Dhirubhai Ambani Institute of Information and Communication Technology, 2011)I wanted to make a documentary on the many challenges facing the Chhipa community of Sanganer and develop the argument that consumer’s lack of knowledge about the richness and value of this craft is also a factor contributing ... -
Dense disparity estimation using stereo images
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)"“Stereo vision” refers to the ability to infer information on the three-dimensional (3D) structure and distance/depth of a scene using two images captured from different view-points. It imitates one of the tasks performed ... -
Depth from defocus
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)With the recent innovations in 3D technology accurate estimation of depth is very fascinating and challenging problem. In this thesis, a depth estimation algorithm, utilizing Singular Value Decomposition to compute orthogonal ... -
Desertification characterization using predictive soil modelling and pattern recognition
(Dhirubhai Ambani Institute of Information and Communication Technology, 2023)This thesis presents a hierarchical methodology for land degradation mapping,land use land cover classification, degradation process identification and map-ping using multispectral LISS-3 images. The study aims to demonstrate ... -
Design & layout of a low voltage folding & interpolation ADC for high speed applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2012)Analog to Digital Converters (ADC) and Digital to Analog Converters (DAC) plays a vital role in mixed analog signalling, communication and digital signal processing world. Now a day, the demand for designing of high ... -
Design and Analysis of Active RF Mixer for Wideband Communication System
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)"This work presents active RF double-balanced down converter mixer with some modification and new techniques. Gilbert topology provides overall good gain and LO-RF isolation. It has poor noise figure performance. It is a ... -
Design and Analysis of analog and 4 bit RF MEMS Phase Shifter
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)"In this thesis, analog and digital X-band phase shifters have been designed for the application in radar technology and missile controlling. All basic design designing technology of digital phase shifters have been defined ... -
Design and analysis of distortion reduction techniques in direct conversion receiver
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)Direct-conversion is alternative wireless receiver architecture to the well-established super heterodyne architecture. Direct-conversion receiver (DCR) can offer highly integrated, low-power and low-cost hardware Solutions ... -
Design and analysis of energy aware protocol-MPEARLE
(Dhirubhai Ambani Institute of Information and Communication Technology, 2004)Due to the technological advances and development in the field of micro electronic devices, the availability of compact, high-performance, customizable, intelligent devices at low cost has become reality. 'Wireless Sensor ... -
Design and Analysis of Energy Neutral Wireless Sensor Nodes for Health and Environmental Monitoring Applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)This thesis demonstrates investigation of an Energy Neutral System using EnergyHarvesters for Wireless Sensor Nodes (WSNs). For this purpose, we have implementedan Energy Harvesting system which consists of three parts: ... -
Design and Analysis of Graphene Based Microstrip Patch Antenna at 7 THz
(2021)The need for high-speed transmission of information has extensively increased in today’s wireless and communication world. For an effective antenna design, material, and peripheral circuit to it are important parameters ... -
Design and analysis of multiband fractal antenna
(Dhirubhai Ambani Institute of Information and Communication Technology, 2015)Miniaturized Multiband antenna design is an important and challenging task for communication industry. Several constraints like size, position of the antenna, feasibility, reflection coefficient, Specific absorption Rate ... -
Design and analysis of novel receiver front-end sub-systems in Ku-band for satellite applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2014)A novel receiver front-end; Low Noise Amplifier (LNA), mixer and Local Oscillator (LO); is designed and analyzed in Ku-band. Different design aspects of the subsystems along with the trade-offs and improvements are presented. ...