Visual fluid animation via lifting wavelet transform

Cited 1 time in webofscience Cited 0 time in scopus
  • Hit : 255
  • Download : 4
While small-scale fluid details are crucial elements for the creation of visually pleasing fluid animations, their synthesis often requires heavy computation with traditional grid-based fluid simulation methods. This paper proposes a novel method for enhancing the appearance of small-scale details through frequency-domain analysis. Different from previous work, our method detects and improves fluid details in the frequency-domain via lifting wavelet decomposition. Based on a coarse-to-fine mechanism, the lifting wavelet composition first transforms the velocity in a fine grid into the frequency domain. Next, the velocity field is enhanced separately for different frequency bands. A novel velocity fusion method is developed for the enhancement of low-frequency parts. On the other hand, high-frequency parts are enhanced using a specially designed vorticity confinement method. Finally, the application of the inverse lifting wavelet transform determines the final velocity field with increased fine details. Our method can generate perceptually interesting fluid details, matching human visual perception theory. The results of various experiments validate the effectiveness and efficiency of our method.
Publisher
WILEY-BLACKWELL
Issue Date
2014-05
Language
English
Article Type
Article
Keywords

VORTEX PARTICLE METHOD; VORTICITY CONFINEMENT; SMOKE SIMULATION; TURBULENCE; WATER

Citation

COMPUTER ANIMATION AND VIRTUAL WORLDS, v.25, no.3-4, pp.475 - 485

ISSN
1546-4261
DOI
10.1002/cav.1574
URI
http://hdl.handle.net/10203/189566
Appears in Collection
GCT-Journal Papers(저널논문)
Files in This Item
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 1 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0