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Now showing items 21-30 of 43
Wavelets and filter banks: novel approaches for real and complex-valued transform designs
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
Processing of natural images stored as 2-D discrete signals is an inevitable task in almost all areas of image processing. In order to have the desired processing results, directional image representation can be considered ...
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 ...
Design of QbE-STD System: audio representation and matching perspective
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
The retrieval of the spoken document and detecting the query (keyword) within the audio document have attained huge research interest. The problem of retrieving audio documents and detecting the query (keyword) using a ...
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 ...
Crying for a reason : a signal processing based approach for infant cry analysis and classification
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)
The present work in this thesis is directed towards understanding the reason of crying of an infant using signal processing approaches. Infant cry analysis and classification is a non-invasive method of analyzing the infant ...
Efficient, revocable and auditable access over encrypted cloud data
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
Cloud data outsourcing services can potentially help reduce the IT budget of organizations. However, they pose significant risks to the security and privacy of the data as the data is outsourced to untrusted third-party ...
Similarity preserving dimensionality reduction for image data
(Dhirubhai Ambani Institute of Information and Communication Technology, 2016)
Data collection and storage capabilities have increased manifold in last few decades,leading to information overload. Number of variables used to represent each data observation is called dimension of the data and dealing ...
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 schemes for privacy preserving cloud storage services
(Dhirubhai Ambani Institute of Information and Communication Technology, 2018)
Public cloud storage services have become the leading choice for individuals and organizations to store their data, as the service provides the benefits of availability and reliability together at a reduced cost. While ...
Signal processing methods for robust heart rate estimation from multimodal physiological signals
(Dhirubhai Ambani Institute of Information and Communication Technology, 2017)
Cardiovascular diseases are the major cause of world-wide mortality. Heart rate (HR) and heart rate variability (HRV) are important health parameters to monitor functioning of heart of cardiac patients. Multimodal physiological ...