Visualizing vector fields using line integral convolution and dye advection
Han-Wei Shen,Chris R. Johnson,Kwan-Liu Ma +2 more
- 01 Oct 1996
- pp 63-70
TL;DR: Using the Line Integral Convolution method to image the global vector field, a new algorithm allows the user to introduce colored "dye" into the vector field to highlight local flow features and a fast algorithm is proposed that quickly recomputes the dyed LIC images.
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Abstract: We present local and global techniques to visualize three-dimensional vector field data. Using the Line Integral Convolution (LIC) method to image the global vector field, our new algorithm allows the user to introduce colored "dye" into the vector field to highlight local flow features. A fast algorithm is proposed that quickly recomputes the dyed LIC images. In addition, we introduce volume rendering methods that can map the LIC texture on any contour surface and/or translucent region defined by additional scalar quantities, and can follow the advection of colored dye throughout the volume.
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Citations
Image based flow visualization
Jarke J. van Wijk
- 01 Jul 2002
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.
Strategies for effectively visualizing 3D flow with volume LIC
Victoria Interrante,Chester E. Grosch +1 more
- 01 Oct 1997
TL;DR: A principal contribution of this work is the suggestion of a technique for generating and rendering 3D visibility-impeding "halos" that can help to intuitively indicate the presence of depth discontinuities between contiguous elements in a projection and thereby clarify the 3D spatial organization of elements in the flow.
Interactive exploration of volume line integral convolution based on 3D-texture mapping
Christof Rezk-Salama,Peter Hastreiter,Christian Teitzel,Thomas Ertl +3 more
- 24 Oct 1999
TL;DR: This work efficiently substitute the calculation of LIC based on sparse noise textures and show the convenient visual access of interior structures in 3D flow fields without the computational expense and the immense memory requirements for pre-computed 3D-textures and without loss of interactivity.
119
Visualizing 3D flow
TL;DR: In this article, the authors discuss volume line integral convolution (LIC) techniques for effectively visualizing 3D flow, including using visibility-impeding halos and efficient asymmetric filter kernels.
116
UFLIC: a line integral convolution algorithm for visualizing unsteady flows
Han-Wei Shen,David L. Kao +1 more
- 01 Oct 1997
TL;DR: Using line integral convolution (LIC) as the underlying method, a new convolution algorithm is proposed that can effectively trace the flow's global features over time and CFD scientists, for the first time, are able to visualize unsteady surface flows using the algorithm.
105
References
Volume rendering
Robert Drebin,Loren C. Carpenter,Pat Hanrahan +2 more
- 01 Jun 1988
TL;DR: A technique for rendering images of volumes containing mixtures of materials is presented, which allows both the interior of a material and the boundary between materials to be colored.
1.7K
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.
Visualizing 3D velocity fields near contour surfaces
Nelson Max,Roger Crawfis,Charles W. Grant +2 more
- 01 Aug 1994
TL;DR: Four different techniques for visualizing vector fields only near surfaces are proposed, allowing real time rotation and interaction, and the first two methods can animate the texture to move in the flow determined by the velocity field.
94
Direct volume visualization of three-dimensional vector fields
Roger Crawfis,Nelson Max +1 more
- 01 Dec 1992
TL;DR: An algorithm to directly render three-dimensional scalar and vector fields using a combination of sampling and splatting techniques, that are extended to integrate display of vector field data within the image.
90
Visualizing 3D velocity fields near contour surfaces
Nelson Max,Roger Crawfis,Charles W. Grant +2 more
- 17 Oct 1994
TL;DR: In this article, four different techniques for visualizing vector fields only near surfaces are proposed: motion blurred particles in a thickened region around the surface, a voxel grid containing integral curves of the vector field, antialiased lines through the surface and hairs sprouting from the surface.
68
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