Interactive Visualization of Volumetric Vector Fields Using Texture Based Particles (bibtex)
by , ,
Abstract:
This paper introduces a new approach to the visualization of volumetric vector fields with an adaptive distribution of animated particles that show properties of the underlying steady flow. The shape of the particles illustrates the direction of the vector field in a natural way. The particles are transported along streamlines and their velocity reflects the local magnitude of the vector field. Further physical quantities of the underlying flow can be mapped to the emissive color, the transparency and the length of the particles. A major effort has been made to achieve interactive framerates for the animation of a large number of particles while minimizing the error of the computed streamlines. There are three main advantages of the new method. Firstly, the animation of the particles diminishes the inherent occlusion problem of volumetric vector field visualization, as the human eye can trace an animated particle even if it is highly occluded. The second advantage is the variable resolution of the visualization method. More particles are distributed in regions of interest. We present a method to automatically adjust the resolution to features of the vector field. Finally, our method is scalable to the computational and rasterization power of the visualization system by simply adjusting the number of visualized particles.
Reference:
Interactive Visualization of Volumetric Vector Fields Using Texture Based Particles (Stefan Guthe, Stefan Gumhold, Wolfgang Straßer), In Proceedings of WSCG Conference, 2002.
Bibtex Entry:
@INPROCEEDINGS{Guthe-2002-Interactivea,
   AUTHOR = {Stefan Guthe and Stefan Gumhold and Wolfgang Stra{\ss}er},
   AFFILIATIONS = {CGV,GRIS},
   AREAS = {areava},
   BOOKTITLE = {Proceedings of WSCG Conference},
   TITLE = {Interactive Visualization of Volumetric Vector Fields Using Texture Based Particles},
   YEAR = {2002},
   URL = {http://tu-dresden.de/die_tu_dresden/fakultaeten/fakultaet_informatik/smt/cgv/publikationen/2002/ivovvfutbp/Guthe-2002-Interactive.pdf},
   ABSTRACT = {This paper introduces a new approach to the visualization of volumetric 
	  vector fields with an adaptive distribution of animated particles that show properties 
	  of the underlying steady flow. The shape of the particles illustrates the direction 
	  of the vector field in a natural way. The particles are transported along streamlines 
	  and their velocity reflects the local magnitude of the vector field. Further physical 
	  quantities of the underlying flow can be mapped to the emissive color, the transparency 
	  and the length of the particles. A major effort has been made to achieve interactive 
	  framerates for the animation of a large number of particles while minimizing the error 
	  of the computed streamlines.
	  There are three main advantages of the new method. Firstly, the animation of the particles 
	  diminishes the inherent occlusion problem of volumetric vector field visualization, as 
	  the human eye can trace an animated particle even if it is highly occluded. The second 
	  advantage is the variable resolution of the visualization method. More particles are 
	  distributed in regions of interest. We present a method to automatically adjust the 
	  resolution to features of the vector field. Finally, our method is scalable to the 
	  computational and rasterization power of the visualization system by simply adjusting 
	  the number of visualized particles.},
   KEYWORDS = {flow visualization, vector field visualization, flow animation, steady flow, splatting}
}
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