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Relevant bibliographies by topics / Electrical source imaging (ESI) / Dissertations / Theses

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Dissertations / Theses on the topic 'Electrical source imaging (ESI)'

Author: Grafiati

Published: 11 March 2023

Last updated: 31 July 2025

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1

Ištok, Martin. "Analýza simultánně měřených EEG/fMRI dat s využitím zpracování EEG signálu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221335.

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The main objective of this diploma thesis is to describe simultaneous electroencephalography-correlated functional magnetic resonance imaging analysis using EEG data processing. It includes basic characteristics of EEG and fMRI recording and analysis and their combination as simultaneous EEG/fMRI analysis and deals with obstructions during its processing. The thesis includes a design of an experiment used for recording and analysis of simultaneous EEG/fMRI data using EEG source reconstruction for regressor construction. Thesis incorporates a software solution used for extraction of signal desc

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2

Tilg, Bernhard. "Noninvasive functional cardiac electrical source imaging /." Aachen : Shaker, 1998. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015159658&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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3

Roman, Alex. "Open-Source Test-Bench Design for Applications in AutonomousUltrasound Imaging." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1553879717367924.

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4

Enwia, George P. "OPEN-SOURCE MINIATURIZED TEST-BENCH DESIGN FOR APPLICATIONS IN WEARABLE AUTONOMOUS ULTRASOUND IMAGING." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1575566958796729.

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5

Parsons, Aaron D. "Coherent diffraction imaging using a high harmonic source at 40 eV." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/370609/.

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This thesis presents the current status of coherent diffractive imaging and ptychography using the high harmonic at the University of Southampton. The full system used to generate the 40 eV radiation and collect the far-field speckle patterns is outlined and critical criteria discussed. The algorithms used to re-phase the data are outlined and some simple 1-dimensional examples are given. The question of how to appropriately state the resolution of a coherent diffraction system is addressed and the concluding results are applied to the work in the experimental chapters, of which this thesis co

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6

Zimnicki, James John. "Spatial Heterodyne Imaging Using a Broadband Source." University of Dayton / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1519143422981263.

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7

Yiu, Patrick (Patrick Wai-Kit). "High speed swept source optical coherence tomography handheld instrument at 1310nm for point-of-care imaging." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/115735.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Optical coherence tomography (OCT) is a novel biomedical imaging technique that functions as a type of "optical biopsy" by using low coherence interferometry to non-invasively generate high resolution cross-sectional images of tissue in real time. OCT has become a standard diagnostic tool in ophthalmology and investigators have demonstrated OCT in a variety of biomedical applications including c

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8

Ahi, Sercan Taha. "Solving The Forward Problem Of Electrical Source Imaging By Applying The Reciprocal Approach And The Finite Difference Method." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608717/index.pdf.

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One of the goals of Electroencephalography (EEG) is to correctly localize brain activities by the help of voltage measurements taken on scalp. However, due to computational difficulties of the problem and technological limitations, the accuracy level of the activity localization is not perfect and should be improved. To increase accuracy level of the solution, realistic, i.e. patient dependent, head models should be created. Such head models are created via assigning realistic conductivity values of head tissues onto realistic tissue positions. This study initially focuses on obtaining patien

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9

Ataseven, Yoldas. "Parallel Implementation Of The Boundary Element Method For Electromagnetic Source Imaging Of The Human Brain." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606548/index.pdf.

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Human brain functions are based on the electrochemical activity and interaction of the neurons constituting the brain. Some brain diseases are characterized by abnormalities of this activity. Detection of the location and orientation of this electrical activity is called electro-magnetic source imaging (EMSI) and is of signicant importance since it promises to serve as a powerful tool for neuroscience. Boundary Element Method (BEM) is a method applicable for EMSI on realistic head geometries that generates large systems of linear equations with dense matrices. Generation and solution of these

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10

Maziero, Danilo. "Localizing and studying epileptogenic sources in patients with focal epilepsy in pre-surgical planning." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/59/59135/tde-27072016-151155/.

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The simultaneous acquisitions of electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) have been applied to improve the surgery planning of patients with drug resistant epilepsy. However, the classical approach of analyzing the EEG-fMRI data is inefficient in patients whom only few or non interictal epileptiforms discharges (IEDs) are detected during the simultaneous acquisition. Another issue of EEG-fMRI acquisition is related to its high sensitivity to motion, which decreases the quality of both data, even worse in non-cooperative patients. In this work we propose and

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11

Elmer, Michael James. "Improved Methods for Phased Array Feed Beamforming in Single Dish Radio Astronomy." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3340.

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Among the research topics needing to be addressed to further the development of phased array feeds (PAFs) for radio astronomical use are challenges associated with calibration, beamforming, and imaging for single dish observations. This dissertation addresses these concerns by providing analysis and solutions that provide a clearer understanding of the effort required to implement PAFs for complex scientific research. It is shown that calibration data are relatively stable over a period of five days and may still be adequate after 70 days. A calibration update system is presented with the pote

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12

DEL, FELICE Alessandra. "Innovative research techniques applied to sleep: an insight into sleep patophysiology." Doctoral thesis, 2013. http://hdl.handle.net/11562/555150.

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I sostanziali progressi tecnologici occorsi nell’arco dell’ultimo secolo, a partire dalla osservazione dell’attività elettrica cerebrale (EEG) da parte di Berger negli anni ‘20 del secolo scorso ai recenti studi di optogentica (Adamantidis et al., 2013), hanno fatto luce su parte della fisiologia del sonno, in maniera impensabile fino alla introduzione di queste metodiche. Il sonno quindi è passato dall’essere considerato uno stato di assoluta inerzia, paragonabile alla morte, ad uno stato di attività cerebrale proteiforme, passando da stadi di ipersincronizzazione a stadi di attività cerebral

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13

Roy, Deboshree. "Low power excitation source based set-up for thermal imaging defect detection." Thesis, 2018. http://eprint.iitd.ac.in:80//handle/2074/7942.

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14

Ling, Yuye. "High-speed phase-stable swept source optical coherence tomography: functional imaging and biomedical applications." Thesis, 2018. https://doi.org/10.7916/D8GJ0QVS.

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In the past decades, the performance of swept source optical coherence tomography (SS-OCT) has experienced an unprecedented improvement which is mainly driven by the rapidly evolving laser technologies: the state-of-art SS-OCT is now tens of dB more sensitive, six orders of magnitude faster, and seeing ten times deeper than the original version of time domain OCT. Regardless of the abovementioned progress, the phase instability is always considered the biggest weakness of SS-OCT and the mainstream belief often states that the mechanical tuning mechanism of the swept source is to blame.

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15

Jr, Juan Ramirez. "Synthetic Aperture Processing for Thinned Array Sensor Systems." Diss., 2016. http://hdl.handle.net/10161/13428.

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<p>In this thesis, we develop methods for addressing the deficiencies of array processing with linear thinned arrays. Our methods are designed for array systems mounted on moving platforms and exploit synthetic aperture processing techniques. In particular, we use array motion to decrease the sidelobe levels and increase the degrees of freedom available from thinned array systems. In this work, we consider two application areas 1) passive SONAR and 2) ultrasound imaging. </p><p>Synthetic aperture processing is a methodology for exploiting array motion and has been successfully used in practi

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