Searched for: contributor%3A%22Verhaegen%2C+Michel+%28mentor%29%22
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Colaço Baptista Cerqueira, Paulo (author)
The visualization of objects within or beyond a turbulent medium is hampered by the aberrations the medium induces in the wavefront. The sharpness of an image is maximal when the incoming wavefront is flat, with aberrated wavefronts yielding distorted images of limited utility. In the particular case of astronomy, the flat wavefront of the light...
master thesis 2020
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van de Ketterij, wouter (author)
Correction techniques, such as tangential iterative projections (TIP), were developed to reconstruct the image for the whole field of view. However, due to the three dimensional nature of biological tissues, induced aberrations are different throughout the field of view. This Master of Science thesis shows the development of four algorithms....
master thesis 2019
document
Noom, Jacques (author)
Currently used imaging methods in Atomic Force Microscopy (AFM) including the use of a Lock-In Amplifier or a Phase-Locked Loop, are suboptimal. In this report, the image resolution in AFM is improved by detecting the tip-sample interaction using complete measurements of the input of the cantilever and its measured deflection. Two methods are...
master thesis 2019
document
Gedon, Daniel (author)
For large-scale system with tens of thousands of states and outputs the computation in the conventional Kalman filter becomes time-consuming such that Kalman filtering in large-scale real-time application is practically infeasible. A possible mathematical framework to lift the curse of dimensionality is to lift the problem in higher dimensions...
master thesis 2019
document
Patil, O Patil (author)
The Atomic Force Microscope is a type of high-resolution Scanning Probe Microscope where the image resolution has been demonstrated to be 3 orders of magnitude better than the optical diffraction limit. Directly observing individual protein molecules in action at high spatio-temporal resolutions has long been a holy grail for biological science....
master thesis 2019
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de Vries, Bob (author)
Objective: Estimators to accurately monitor ventricular relaxation, cardiac contractility and cardiac output (CO) during support of a left ventricular assist device (LVAD), based on the left ventricular pressure (LVP) and pump-intrinsic signals, were developed. The aim was to continuously monitor these cardiac parameters, hereby tracking the...
master thesis 2018
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Gupta, Abhimanyu (author)
The use of radial basis function (RBF) expansion as a means to represent the generalized pupil function for aberration retrieval from intensity point-spread function has been investigated in this research article. The optimal choice of RBF hyper-parameters is derived empirically to achieve an increased accuracy of approximation along with well...
master thesis 2017
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Nayar, Gokul (author)
Accurate and safe proton beam delivery is one of the most crucial tasks during Proton Therapy (PT) of ocular melanoma. The eye movement and gaze angle tracking system should be able to monitor in real time the eye position and orientation (6 degree of freedom) to exactly localize the tumor location inside the eye with respect to the proton beam....
master thesis 2017
document
Varnai, Peter (author)
We study the important mathematical problem of approximating the inverse of low Kronecker-rank matrices in this same form. A traditional alternating least squares (ALS) scheme for solving such problems is presented, and we discuss two efficient solutions to the subproblems arising in the corresponding iterations. The first relies on a least...
master thesis 2017
document
Arto Sanchez, Guillermo (author)
In optical imaging, image quality is not only determined by the system itself but also by the media in which light traverse. Differences in the refraction index of the media encountered by a light wavefront produces phase aberrations which distort the image received from the original object. Currently, there are two main approaches for solving...
master thesis 2017
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