TY - THES A1 - Hijazi, Younis T1 - Feature Based Visualization N2 - In this thesis we apply powerful mathematical tools such as interval arithmetic for applications in computational geometry, visualization and computer graphics, leading to robust, general and efficient algorithms. We present a completely novel approach for computing the arrangement of arbitrary implicit planar curves and perform ray casting of arbitrary implicit functions by jointly achieving, for the first time, robustness, efficiency and flexibility. Indeed we are able to render even the most difficult implicits in real-time with guaranteed topology and at high resolution. We use subdivision and interval arithmetic as key-ingredients to guarantee robustness. The presented framework is also well-suited for applications to large and unstructured data sets due to the inherent adaptivity of the techniques that are used. We also approach the topic of tensors by collaborating with mechanical engineers on comparative tensor visualization and provide them with helpful visualization paradigms to interpret the data. N2 - Feature-basiert Visualisierung KW - Visualisierung KW - Feature KW - Kurve KW - Ray casting KW - Beschränkte Arithmetik KW - GPU KW - Computergraphik KW - visualization KW - computer graphics KW - curves and surfaces KW - interval arithmetic KW - affine arithmetic KW - ray casting KW - ray tracing KW - GPU Y1 - 2007 UR - https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/1938 UR - https://nbn-resolving.org/urn:nbn:de:hbz:386-kluedo-21704 ER -