Searched for: contributor%3A%22Jansen%2C+F.W.+%28promotor%29%22
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Kok, P. (author)
Molecular imaging techniques have been developing rapidly over the past decades, especially in preclinical research. As molecular imaging is applied more frequently, more and more data is generated from longitudinal studies, often in various modalities. The increasing amount of data poses a number of visualization challenges for researchers, who...
doctoral thesis 2014
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Busking, S. (author)
As datasets grow in size and complexity, the importance of comparison as a tool for analysis is growing. We define comparison as the act of analyzing variation or variability based on two or more specific instances of the data. This thesis explores a number of cases spread across the range of comparisons, from variability within one entity...
doctoral thesis 2014
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Horeman, T. (author)
In laparoscopic surgery, special instruments with long and slender shafts are inserted through small incisions in the abdominal wall. A laparoscope is used for a clear vision inside the inflated abdominal cavity while laparoscopic graspers and cutters are used for manipulation of tissue. The use of long instruments makes it difficult to “feel”...
doctoral thesis 2014
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Tutenel, T. (author)
The visual quality of game worlds increased massively in the last three decades. However, the closer game worlds depict reality, the more noticeable it is for gamers when objects do not behave accordingly. An important problem is that the data of a game world is often scattered across different components of the game engine. What lacks is a...
doctoral thesis 2012
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Bikker, J. (author)
This thesis describes efficient rendering algorithms based on ray tracing, and the application of these algorithms to real-time games. Compared to rasterizationbased approaches, rendering based on ray tracing allows elegant and correct simulation of important global effects, such as shadows, reflections and refractions. The price for these...
doctoral thesis 2012
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Smelik, R.M. (author)
With the ever increasing costs of manual content creation for 3D virtual worlds, the potential of generating content automatically becomes too attractive to ignore. However, for most designers, procedural generation methods are complex and unintuitive to use, and offer little user control. Furthermore, due to their specialized nature, separately...
doctoral thesis 2011
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Zhao, L. (author)
In this thesis, we present an automatic polyp detection approach that integrates knowledge from flow visualization techniques. Our primary goal was to compute additional characteristic polyp features that improve the CAD performance of existing polyp detection approaches by eliminating found false-positive polyp candidates. We found that surface...
doctoral thesis 2011
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Sypkens Smit, M. (author)
Design and analysis of products are two separate disciplines, nowadays supported by computers, that frequently need to interact. The first is also known as computer-aided design, and is about the complete digital specification of products, in particular their geometry. Analysis is the process of simulating the physical behaviour of a product...
doctoral thesis 2011
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Blaas, J. (author)
This thesis investigates methods for the visualization of multi-field medical data. In the medical field, data complexity has been growing consistently over the past years. Not only the size of the data grows, but also the need to visualize beyond traditional boundaries. We present a number of novel facets that encompass a general approach to...
doctoral thesis 2010
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Griffith, E.J. (author)
This thesis focuses on interactively visualizing, and ultimately simulating, cumulus clouds both in virtual reality (VR) and with a standard desktop computer. The cumulus clouds in question are found in data sets generated by Large-Eddy Simulations (LES), which are used to simulate a small section of the atmosphere over a period of several hours...
doctoral thesis 2010
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De Haan, G. (author)
Spatial scientific datasets are all around us, and 3D visualization is a powerful tool to explore details and structures within them. When dealing with complex spatial structures, interactive Virtual Reality (VR) systems can potentially improve exploration over desktop-based systems. However, from previous experience it was found that...
doctoral thesis 2009
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Chmarra, M.K. (author)
doctoral thesis 2009
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Van der Meiden, H.A. (author)
doctoral thesis 2008
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Van den Berg, C. (author)
doctoral thesis 2007
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Vrolijk, B. (author)
The research described in this thesis was part of a larger research project about multi-phase flows. These flows are characterised by a sharp transition between the fluids, the so-called phase front. One of the goals of the project was to study the evolution of the phase fronts using CFD, i.e. to study the development of the surfaces over time...
doctoral thesis 2007
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Loke, R.E. (author)
This thesis describes a visualization pipeline for sonar profiling data that show reflections of multiple sediments in the sea bottom and that cover huge survey areas with many gaps. Visualizing such data is not trivial, because they may be noisy and because data sets may be very large. The developed techniques are: (1) Quadtree interpolation...
doctoral thesis 2006
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Botha, C.P. (author)
This thesis presents a flexible software platform for medical visualisation and image processing, a technique for the segmentation of the shoulder skeleton from CT data and three techniques that make contributions to the field of direct volume rendering. Our primary goal was to investigate the use of visualisation techniques to assist the...
doctoral thesis 2005
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Rentema, D.W.E. (author)
This thesis describes the development of a computer support tool that supports the initial, conceptual design process. In this first design phase one or more concepts are defined which are assumed to be able to comply with the design specifications. These concepts can be elaborated in more detail with the aid of the conventional CAD tools that...
doctoral thesis 2004
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de Bruin, P.W. (author)
doctoral thesis 2004
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Koutek, M. (author)
The research described in this thesis was carried out in the Computer Graphics & CAD/CAM group at Delft University of Technology. The project was directly supervised by Frits Post. It is the sixth project in a series of PhD projects on data visualization, but the first project concerned with Virtual Reality and data visualization. In summer 1998...
doctoral thesis 2003
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