Proceedings Article10.1145/566570.566646
Image based flow visualization
Jarke J. van Wijk
- 01 Jul 2002
- Vol. 21, Iss: 3, pp 745-754
TL;DR: A new method for the visualization of two-dimensional fluid flow based on the advection and decay of dye is presented, which achieves a high performance by using standard features of graphics hardware.
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Abstract: A new method for the visualization of two-dimensional fluid flow is presented. The method is based on the advection and decay of dye. These processes are simulated by defining each frame of a flow animation as a blend between a warped version of the previous image and a number of background images. For the latter a sequence of filtered white noise images is used: filtered in time and space to remove high frequency components. Because all steps are done using images, the method is named Image Based Flow Visualization (IBFV). With IBFV a wide variety of visualization techniques can be emulated. Flow can be visualized as moving textures with line integral convolution and spot noise. Arrow plots, streamlines, particles, and topological images can be generated by adding extra dye to the image. Unsteady flows, defined on arbitrary meshes, can be handled. IBFV achieves a high performance by using standard features of graphics hardware. Typically fifty frames per second are generated using standard graphics cards on PCs. Finally, IBFV is easy to understand, analyse, and implement.
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References
Imaging vector fields using line integral convolution
Brian Cabral,Leith Casey Leedom +1 more
- 01 Sep 1993
TL;DR: This approach builds on several previous texture generation and filtering techniques but is unique because it is local, one-dimensional and independent of any predefined geometry or texture.
Compositing digital images
Thomas K Porter,Thomas Douglas Selkirk Duff +1 more
- 01 Jan 1984
TL;DR: In this article, a matte component can be computed similarly to the color channels for four-channel pictures, and guidelines for the generation of elements and arithmetic for their arbitrary compositing are discussed.
1.4K
•Book
Compositing digital images
Thomas K Porter,Thomas Douglas Selkirk Duff +1 more
- 01 Dec 1988
TL;DR: The case for four-channel pictures is presented, demonstrating that a matte component can be computed similarly to the color channels, and guidelines for the generation of elements and the arithmetic for their arbitrary compositing are discussed.
1.4K
Representation and display of vector field topology in fluid flow data sets
TL;DR: An approach to visualizing flow topology that is based on the physics and mathematics underlying the physical phenomenon is presented and can be displayed as a set of points and tangent curves or as a graph.
521
•Journal Article
Silicon Graphics Inc.
TL;DR: Adding long long was proposed previously by Roland Hartinger in June of 1995, in J16/950115=WG21/N0715, and almost a decade later, the world looks different: long long is part of C99, and many major C++ compilers support it.
423
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