TY - GEN A1 - Stalling, Detlev A1 - Hege, Hans-Christian T1 - Fast and Resolution Independent Line Integral Convolution N2 - Line Integral Convolution (LIC) is a powerful technique for generating striking images and animations from vector data. Introduced in 1993, the method has rapidly found many application areas, ranging from computer arts to scientific visualization. Based upon locally filtering an input texture along a curved stream line segment in a vector field, it is able to depict directional information at high spatial resolutions. We present a new method for computing LIC images, which minimizes the total number of stream lines to be computed and thereby reduces computational costs by an order of magnitude compared to the original algorithm. Our methods utilizes fast, error-controlled numerical integrators. Decoupling the characteristic lengths in vector field grid, input texture and output image, it allows to compute filtered images at arbitrary resolution. This feature is of great significance in computer animation as well as in scientific visualization, where it can be used to explore vector data by smoothly enlarging structure of details. We also present methods for improved texture animation, employing constant filter kernels only. To obtain an optimal motion effect, spatial decay of correlation between intensities of distant pixels in the output image has to be controlled. This is achieved by blending different phase shifted box filter animations and by adaptively rescaling the contrast of the output frames. T3 - ZIB-Report - SC-94-37 Y1 - 1995 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-1653 ER - TY - CHAP A1 - Stalling, Detlev A1 - Hege, Hans-Christian T1 - Design and Implementation of a Hyperthermia Planning System T2 - Tagungsband zum 4. Freiburger Workshop Digitale Bildverarbeitung in der Medizin Y1 - 1995 CY - Freiburg/Breisgau ER - TY - CHAP A1 - Stalling, Detlev A1 - Hege, Hans-Christian A1 - Höllerer, Tobias T1 - Visualization and 3D-Interaction for Hyperthermia Treatment Planning T2 - Proc. CAR 95 Computer Assisted Radiology, 9th International Symposium and Exhibition Y1 - 1995 SP - 1216 EP - 1222 CY - Berlin ER - TY - CHAP A1 - Höllerer, Tobias A1 - Tönnies, Klaus A1 - Hege, Hans-Christian A1 - Stalling, Detlev T1 - Volume Rendering on Irregular Grids (Abstract) T2 - Int. Workshop on Mathematics and Visualization Y1 - 1995 CY - Berlin, Germany ER - TY - JOUR A1 - Höllerer, Tobias A1 - Tönnies, Klaus A1 - Hege, Hans-Christian A1 - Stalling, Detlev T1 - Der Einfluß der Datenapproximation bei Volume Rendering durch ein Emissions/Absorptions-Modell JF - Visualisierung - Dynamik und Komplexität Y1 - 1995 PB - CEVIS Universität Bremen und Fachgruppe 4.2.1 der Gesellschaft für Informatik CY - Bremen, Germany ER - TY - CHAP A1 - Stalling, Detlev A1 - Hege, Hans-Christian T1 - Fast and Resolution-Independent Line Integral Convolution T2 - Proceedings of SIGGRAPH ’95 Y1 - 1995 U6 - https://doi.org/10.1145/218380.218448 SP - 249 EP - 256 PB - Computer Graphics Annual Conference Series, ACM SIGGRAPH CY - Los Angeles, California ER -