Browsing Theses and Dissertations(library) by Author "Oraintara, Soontorn"
Now showing items 1-11 of 11
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Complex Directional Wavelet Transforms: Representation, Statistical Modeling And Applications
Vo, An Phuoc Nhu (Electrical Engineering, 2009-09-16)The thesis presents an new image decomposition for feature extraction, which is called the pyramidal dual-tree directional filter bank (PDTDFB). The image representation has an overcomplete ratio of less than 8/3 and uses ... -
The Complex Gaussian Scale Mixtures Of Complex Wavelet Coefficients And Applications
Rakvongthai, Yothin (Electrical Engineering, 2011-07-14)In this thesis, the complex Gaussian scale mixture (CGSM), which is an extension of the Gaussian scale mixture (GSM) for real-valued random variables to the complex case, is presented to model the complex wavelet coefficients. ... -
Error-resilient Image And Video Coding Over Lossy Networks
Liu, Yilong (Electrical Engineering, 2007-08-23)The rapid growth of the Internet and increasing bandwidth in the past decade has heightened the interest in robust transmission of image and video signals over error-prone links. Recent literatures highlight the multiple ... -
Evaluation Of Step Detection Of Piecewise Constant Signals Using Phase Congruency, Real Footprints And Complex Footprints
Sachidananda, Srikanteswara (Electrical Engineering, 2011-07-14)Several applications involve the use of signals that are piecewise constant. Often, their measurements or observations are contaminated with noise. Detecting the steps and recovering the true signal from its noisy measurements ... -
Improving the Quality of Low Bitrate LPC Speech Codec Using Gamma-chirp Filterbank
Khajeh Djahromi, Amin (Electrical Engineering, 2007-08-23)In this thesis, two methods for getting higher speech quality in low bit-rate LPC coder in comparison with the original LPC coder were presented. In order to improve the quality of the speech, the embedded method which can ... -
Microarray Image Denoising Using Complex Gaussian Scale Mixtures Of Complex Wavelets
Srinivasan, Lakshmi (Electrical Engineering, 2011-07-14)The scientific world has witnessed an explosion in the development of comprehensive and high-throughput methods for molecular biology experimentation. High density DNA microarray technology, allows researchers to monitor ... -
On The Study Of Multi-channel EEG: Lossless Compression, Signal Modeling And Classification
Wongsawat, Yodchanan (Electrical Engineering, 2008-04-22)Recently, electroencephalogram (EEG) has become necessary for diagnosis, telemedicine, and brain computer interface (BCI). This thesis investigates three signal processing tools which can explore multi-channel structures ... -
Performance Evaluation Of Greedy Heuristic For SIP Analyzer In H.264/SVC
Inamdar, Jaydeep Vijay (Electrical Engineering, 2008-08-08)The latest scalable video coding standard, H.264/SVC uses many components of H.264/AVC standard to maintain backward compatibility and also has proposed many tools to support scalable video coding with increased coding ... -
SPARSE SIGNAL RECONSTRUCTION IN LINEAR INVERSE SCATTERING PROBLEM
Bhowmik, Tanmoy (2015-12-09)Proper mathematical modeling of inverse scattering problem is of utmost importance in applications such as optical imaging and microscopy, radar, acoustic, seismic and medical imaging. However, the problem is non-linear ... -
Sparsity Enhanced Reconstruction Algorithms For Diffuse Optical Tomography
Yao, Jixing (Electrical Engineering, 2014-03-12)Conventional reconstruction algorithms for diffuse optical tomography (DOT) is based on Tikhonov regularization method and the simple white Gaussian noise (WGN) assumption. These approaches usually lead to the following ... -
Wavelet Based Array Comparative Genomic Hybridization And Mass Spectrometry Data Analysis
Nguyen, Nha (Electrical Engineering, 2010-11-01)As a highly efficient technique, array-based comparative genomic hybridization (aCGH) methods allow the simultaneous measurement of genomic DNA copy number at hundreds or thousands of loci and the reliable detection of ...