“Wave animation synthesis directly from a real video” by Sakaino

  • ©Hidetomo Sakaino

  • ©Hidetomo Sakaino




    Wave animation synthesis directly from a real video



    In this sketch, a semi-automatic wave animation method/system is presented by a direct use of a real wave video with a modified optical flow method. Previous method: A realistic fluid-like  animation such as river and ocean has become an intensive research topic. Various wave animation methods have been proposed based on wave generation theory [1]. [1] presented an energy spectrum based wave generation method. [2] applied [1]’s method to animate a harbor and river of an oil painting. Issue: These conventional methods for a natural scene needed to empirically define optimal parameters interactively.  [1] shows a very realistical wave motion, though, deep knowledge of a wave property is needed. Using a ramdom varible leads to a plausible wave motion but it  is hard to control how such as a wave activity shows.  For an inexperienced user, a wave animation method should be hopefully much more simplified.

    Motivation: Thus, this was motivated us to propose a quick wave motion generator using a real wave video. What a user  needs is only to collect a wave video and then input it  into our system. Our system: In our system, computer vision-based optical flow and physical properties of a wave sequence is used to estimate parameters which are  necessary for a wave generation equation over time. As shown in Figure 1, a user simply handles to select a  wave video and press a start buttom to get an animation only by a mouse operation with a default rendering setting. Thus, a realistic wave motion similar to what a  user wishes to animate can be synthesized almost  automatically while above previous methods take a  great effort and time


    1. J. Tessendorf. 1999. Simulating ocean water. SIGGRAPH, in Course Notes.
    2. Y. Y. Chuang et al. 2005. Animating pictures with stochastic motion textures. Proc. SIGGRAPH.
    3. K. Horikawa. 1978. Coastal engineering – an introduction to ocean engineering. Univ. of Tokyo Press.

Additional Images:

©Hidetomo Sakaino ©Hidetomo Sakaino ©Hidetomo Sakaino

ACM Digital Library Publication:

Overview Page: