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Facial expression recognition: feature based approaches to deep learning techniques
(Dhirubhai Ambani Institute of Information and Communication Technology, 2020)
Facial expression recognition (FER) is a problem of pattern recognition that invites the attention of computer vision researchers for the last three decades. However, the problem is still alive due to challenges such as - ...
Compressive sampling architecture for wideband communication
(Dhirubhai Ambani Institute of Information and Communication Technology, 2020)
This dissertation proposes a novel Compressive Sampling (CS) scheme for Sub-Nyquist Spectrum Sensing (SNSS) of spectrally sparse wideband signals. A novelty of our proposed SNSS scheme resides in the analog front-end. We ...
3D shape deformations : a lie group based approach
(Dhirubhai Ambani Institute of Information and Communication Technology, 2020)
3D shapes are ubiquitous in many fundamental tasks of computer graphics and geometry processing. For many applications, new shapes have to be generated from the existing ones, for which it it imperative to understand and ...
Design of spoof speech detection system : teager energy-based approach
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)
Automatic Speaker Verification (ASV) systems are vulnerable to various spoofing attacks, namely, Speech Synthesis (SS), Voice Conversion (VC), Replay, and Impersonation. The study of spoofing countermeasures has become ...
Spatial and spectral regularization in unmixing of remotely sensed data
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)
The hyperspectral imaging opens the broad possibilities for remote sensing data analysis with it’s rich spectral information. However, this has a trade-off with limited spatial details due to the presence of several hardware ...
Impact of Weather Conditions on Macroscopic Traffic Stream Variables in an Intelligent Transportation System
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)
"Accurate prediction of the macroscopic traffic stream variables such as speed and flow is essential for the traffic operation and management in an Intelligent Transportation System (ITS). Adverse weather conditions like ...
Privacy and accountability in cloud computation and storage
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)
Cloud computing is a cost-effective computing paradigm for convenient, ondemand data access to a shared pool of configurable computing resources such as networks, servers, storage, applications, and services. While providing ...
Compact Circularly Polarized Tri-, Dual- and Single-Band Dielectric Resonator Antennas
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)
The Dielectric Resonator Antennas (DRAs) have received wide attention due to low loss, high radiation efficiency, small size, wider bandwidth and simple feed network as compared to the microstrip antennas. Microstrip ...
Vector graph representation for 3D meshes and algorithms for mesh deformation, enveloping, interpolation and morphing
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)
The performance of the tools developed for graphics and animation depends on the underlying representation of the geometric model of the objects. The geometric model in turn describes the geometry of the real world object. ...
Design and Performance Comparison of Novel High Q Coaxial Resonator Filter for Ka-band High Throughput Satellite
(Dhirubhai Ambani Institute of Information and Communication Technology, 2021)
The filters deployed in the satellite are high-performance filters that have very stringent in-band and out of band performance. They require high Q resonators with spurious free-range for their realization. But, the Q ...