05 Fakultät Informatik, Elektrotechnik und Informationstechnik

Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/6

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Institute: search.filters.UBSInstitut.Institut für Visualisierung und Interaktive SystemePublication Type: search.filters.UBSTyp.Arbeitspapier

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Now showing 1 - 4 of 4
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    The design and implementation of a presentation system for interactive 3D graphics applications
    (2005) Stegmaier, Simon; Klein, Thomas; Strengert, Magnus; Ertl, Thomas
    We present the design and implementation of a stand-alone system for presenting interactive 3D graphics applications and arbitrary multimedia contents to a public audience. The description includes technical details regarding the construction of a sturdy case to accommodate touchscreen, PC, video projector, and sound equipment, and details involved in the design of the presentation software. The presented system was evaluated during a week-long exhibition with several hundreds of users.
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    Methods for coreference visualization and annotation
    (2010) Burkovski, Andre; Heidemann, Gunther; Kobdani, Hamidreza; Schütze, Hinrich
    In this report we present methods for visualization of coreferences. We use Self Organizing Maps, graph-based models, and text-based techniques to visualize coreference information from a pair-wise model and offer an interactive presentation of the feature space. We introduce our software system and several visualizations of the Self Organizing Map. The visualizations enable the user to explore the feature space, provide insights for feature engineering and allow a fast annotation of data with coreference information.
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    A depth-cueing scheme based on linear transformations in tristimulus space
    (2002) Weiskopf, Daniel; Ertl, Thomas
    We propose a generic and flexible depth-cueing scheme which subsumes many well-known and new color-based depth-cueing approaches. In particular, it includes standard intensity depth-cueing and rather neglected pure saturation depth-cueing. A couple of new combinations and variations of depth cues are presented. Their usefulness is demonstrated in many different fields of application, reaching from non-photorealistic rendering to information visualization. In addition to cues based on a geometric concept of depth, an abstract visualization approach in the form of semantic depth-cueing is proposed. Our depth-cueing scheme is based on linear transformations in the 3D tristimulus space of colors and on weighted sums of colors. Since all of the required operations are supported by contemporary consumer graphics hardware, the depth-cueing scheme can be implemented without performance cutbacks. Therefore, any real-time rendering application can be enriched by sophisticated depth-cueing.
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    Verwendung von Scalable Vector Graphics und MathML in web-basierten Lernumgebungen
    (2002) Rotard, Martin; Schweikhardt, Waltraud; Ertl, Thomas
    In web-basierten Lernumgebungen werden Rastergraphiken eingesetzt, um Skizzen und Formeln darzustellen. Dies erschwert den Austausch und die Wiederverwendung von Lehrmaterialien unter Lernenden und Lehrenden. Dieser Beitrag stellt das Vektorgraphikformat SVG (Scalable Vector Graphics) und MathML, das Format zur Beschreibung mathematischer Ausdrücke, vor. Die Möglichkeiten des SVG-Formats reichen von der Darstellung einfacher Graphikelemente bis hin zu komplexen Filtern und Beleuchtungseffekten. In MathML lässt sich der inhaltliche Zusammenhang oder die Darstellung von mathematischen Ausdrücken beschreiben. Das letzte Kapitel gibt einen Ausblick auf Anwendungsfelder von web-basierten Lernumgebungen mit SVG und MathML.