Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Multi-Resolution analysis"”.
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Composite Multi resolution Analysis Wavelets
Composite dilation wavelets are a class of wavelets that include additional dilations from a countable subgroup of the invertible matrices. We consider the case when these additional dilation matrices form a finite group. A theory of MRA wavelets is established in this setting along with a theory …
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Low Latency Compressive Sensing using Multi-Resolution Analysis In Radar Signal Processing
… radar. Second, we exploit prior information and multi-resolution analysis properties to introduce a low-latency sub-Nyquist adaptive sampling algorithm. The proposed algorithm is a modified version of CS sampling approach called Xampling but uses Haar wavelets. The Haar wavelet based approach is …
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Multi-resolution analysis of earthquake losses : from city block to national scale
Thesis (S.M. in Transportation)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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Wavelets and PDEs : the improvement of computational performance using multi-resolution analysis
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1998.
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Stochastic Processes and Multi-Resolution Analysis: A Trigonometric Moment Problem Approach and an Analysis of the Expenditure Trends for Diabetic Patients
… processing questions) using tools in wavelet analysis, functional analysis (we use in particular the trigonometric moment problem), the theory of realization of rational functions, and reproducing kernel Hilbert spaces. A novel form of multiresolution analysis is formulated in the discrete …
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3D multiresolution statistical approaches for accelerated medical image and volume segmentation
… research for segmenting medical volume which are multi-resolution analysis and statistical modeling. Multi-resolution analysis has been mainly employed in this research for extracting the features. Higher dimensions of discontinuity (line or curve singularity) have been extracted in medical images …
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Wavelet analysis of ULF magnetospheric waves
<p>Wavelet analysis is used to analyze magnetometer data and is compared to the traditional spectrogram technique, in particular, with respect to structured Pc 1--2 emissions. This results in the conclusion that the frequency modulation evident in Pearl pulsations is not continuous, but is …
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Spline wavelet image coding and synthesis for a VLSI based difference engine
… compression/synthesis system based on a spline multi-resolution analysis (MRA) is investigated. The proposed system uses a quadratic spline wavelet transform combined with minimum-mean squared error vector quantization to achieve image compression. Image synthesis is accomplished by utilizing …
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Dynamic moment analysis of non-stationary temperature data in Alberta
… and time-dependent Alberta temperatures. Wavelet multi-resolution analysis is used to measure Hurst exponents of the temperature series. Our empirical results show that these Hurst exponents vary over various time scales, indicating the existence of multi-fractality in the temperatures. Such …
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Methodology for innovative health monitoring of aerospace structures using dynamic response measurements and advanced signal processing techniques
… artificial neural network, coupled with wavelet multi-resolution analysis. This methodology will be the core of the SHM system. Structural damage will be initially simulated by slightly varying the mass properties of the structure. As a second step, actual damage was introduced to the structure. …
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A multi-resolution multi-source and multi-modal (M3) transductive framework for concept detection in news video
… news video concept detection are based on single-resolution (shot), single source (training data), and multi-modal fusion methods under a supervised inductive inference framework. In this thesis, we present a novel multi-resolution, multi-source and multi-modal transductive learning framework. As …
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Electromyographic Characterization in an Animal model of Dystonia
… using the Discrete Wavelet Transform based multi-resolution analysis, and signal coefficients corresponding to the dominant EMG frequency band were chosen. Gunn rats exposed to sulfadimethoxine developed a stable clinical state characterized by prolonged abnormal axial and appendicular …
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Detection Of The R-wave In Ecg Signals
… forms the heart of the algorithm providing a multi-resolution analysis of the ECG signal. The wavelet transform decomposes the ECG signal into frequency scales where the ECG characteristic waveforms are indicated by zero crossings. The adaptive threshold algorithms discussed in this thesis …
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Die Kapitalstruktur europäischer Emittenten von bedingten Pflichtwandelanleihen im Bankensektor: eine robuste Korrelationsund Portfoliooptimierungsanalyse mit besonderer Berücksichtigung der Wavelet-Analyse und von Bayesschen Netzen
… of returns and are based on the Wavelet Analysis and on Bayesian Nets. The estimation results will feature rolling and extending sample windows and be implemented in a standard mean-variance optimisation algorithm to construct optimal portfolios. The performance of these optimal …
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Robust real-time locolization and mapping in single and multi-robot systems
… mobile autonomous navigation in the single and multi-robot systems. We presented novel solutions to the single robot localization and simultaneous localization and mapping (SLAM) problems for both the single and multi-robot cases. Our global localization algorithm is an instance of the known …
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Una nueva aproximación a la multirresolución en el dominio del tiempo (MRTD), basada en la transformada discreta en Wavelets
… tesis incluye una introducción al análisis en multirresolución fundamentado en las propiedades de las funciones wavelets, así como la descripción de los algoritmos conducentes a la implementación de esta técnicas MRTD utilizando funciones wavelets de Daubechies en una, dos y tres dimensiones, …