RI | Publications | Interactive Control of Avatars Animated With Human Motion Data

Text only version of this site

Interactive Control of Avatars Animated With Human Motion Data
J. Lee, J. Chai, P. Reitsma, J.K. Hodgins, and N. Pollard
ACM Transactions on Graphics (SIGGRAPH 2002), Vol. 21, No. 3, July, 2002, pp. 491 - 500.

Jump to: Download | Abstract | Notes | Text Reference | BibTeX Reference

Download [Help]

Adobe portable document format (pdf) [7919 KB]

Copyright notice: This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.

Abstract

Real-time control of three-dimensional avatars is an important problem in the context of computer games and virtual environments. Avatar animation and control is difficult, however, because a large repertoire of avatar behaviors must be made available, and the user must be able to select from this set of behaviors, possibly with a low-dimensional input device. One appealing approach to obtaining a rich set of avatar behaviors is to collect an extended, unlabeled sequence of motion data appropriate to the application. In this paper, we show that such a motion database can be preprocessed for flexibility in behavior and efficient search and exploited for real-time avatar control. Flexibility is created by identifying plausible transitions between motion segments, and efficient search through the resulting graph structure is obtained through clustering. Three interface techniques are demonstrated for controlling avatar motion using this data structure: the user selects from a set of available choices, sketches a path through an environment, or acts out a desired motion in front of a video camera. We demonstrate the flexibility of the approach through four different applications and compare the avatar motion to directly recorded human motion.

Notes

Number of pages: 10

Note: AVI Video available at: http://mrl.snu.ac.kr/Movies/avatar_video_small.avi

Text Reference

J. Lee, J. Chai, P. Reitsma, J.K. Hodgins, and N. Pollard, "Interactive Control of Avatars Animated With Human Motion Data," ACM Transactions on Graphics (SIGGRAPH 2002), Vol. 21, No. 3, July, 2002, pp. 491 - 500.

BibTeX Reference

@article{Lee_2002_5197,
   author = "Jehee Lee and Jinxiang Chai and Paul Reitsma and Jessica K Hodgins and Nancy Pollard",
   title = "Interactive Control of Avatars Animated With Human Motion Data",
   journal = "ACM Transactions on Graphics (SIGGRAPH 2002)",
   month = "July",
   year = "2002",
   volume = "21",
   number = "3",
   pages = "491 - 500",
   note = "AVI Video available at: http://mrl.snu.ac.kr/Movies/avatar_video_small.avi"
}