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Data analysis often involves the comparison of complex objects. With the ever increasing amounts and complexity of data, the demand for systems to help with these comparisons is also growing. Increasingly , information visualization tools support such comparisons explicitly, beyond simply allowing a viewer to examine each object individually. In this paper,(More)
Fast and accurate collision detection between geometric bodies is essential in application areas like virtual reality, animation, simulation, games and robotics. In this work, we address the collision detection problem in applications where deformable bodies are used, which change their overall shape every time step of the simulation. We propose and(More)
There are many different uses for haptics, such as training medical practitioners, teleoperation, or navigation of virtual environments. This review focuses on haptic methods that display data. The hypothesis is that haptic devices can be used to present information, and consequently, the user gains quantitative, qualitative, or holistic knowledge about the(More)
Different acoustic variables such as pitch, volume, timbre and position can be used to represent quantitative, qualitative and categorical aspects of the information. Such sonifications are particularly useful for those with visual impairments; they are also beneficial in circumstances where visual representations would be impossible to use or to enrich a(More)
Searching for information on the web is hard; the user may not know what they are looking for, they may refine their search from information gathered by preliminary naive searches, and they may be looking for luminous sites that have many external links so that they can browse further. Information visualization can aid the user in many of these search(More)
Repairing Virtual Reality (VR) models is a challenge for productive applications. This paper describes a fast implementation of Nooruddin and Turk's ray-stabbing method 14 based on standard graphics hardware. Ray-stabbing is used to convert a polygonal model into a volume model (also called voxelization). The volume model is back-converted into a polygonal(More)
Visualization is coming of age. With visual depictions being seamlessly integrated into documents, and data visualization techniques being used to understand increasingly large and complex datasets, the term "visualization"' is becoming used in everyday conversations. But we are on a cusp; visualization researchers need to develop and adapt to today's new(More)