MPI-INF/SWS Research Reports 1991-2021

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Gesture modeling and animation by imitation

Albrecht, Irene and Kipp, Michael and Neff, Michael and Seidel, Hans-Peter

August 2006, 62 pages.

Status: available - back from printing

Animated characters that move and gesticulate appropriately with spoken text are useful in a wide range of applications. Unfortunately, they are very difficult to generate, even more so when a unique, individual movement style is required. We present a system that is capable of producing full-body gesture animation for given input text in the style of a particular performer. Our process starts with video of a performer whose gesturing style we wish to animate. A tool-assisted annotation process is first performed on the video, from which a statistical model of the person.s particular gesturing style is built. Using this model and tagged input text, our generation algorithm creates a gesture script appropriate for the given text. As opposed to isolated singleton gestures, our gesture script specifies a stream of continuous gestures coordinated with speech. This script is passed to an animation system, which enhances the gesture description with more detail and prepares a refined description of the motion. An animation subengine can then generate either kinematic or physically simulated motion based on this description. The system is capable of creating animation that replicates a particular performance in the video corpus, generating new animation for the spoken text that is consistent with the given performer.s style and creating performances of a given text sample in the style of different performers.

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  AUTHOR = {Albrecht, Irene and Kipp, Michael and Neff, Michael and Seidel, Hans-Peter},
  TITLE = {Gesture modeling and animation by imitation},
  TYPE = {Research Report},
  INSTITUTION = {Max-Planck-Institut f{\"u}r Informatik},
  ADDRESS = {Stuhlsatzenhausweg 85, 66123 Saarbr{\"u}cken, Germany},
  NUMBER = {MPI-I-2006-4-008},
  MONTH = {August},
  YEAR = {2006},
  ISSN = {0946-011X},