Abstract
A homotopy describes the transformation of one arbitrary curve into another that shares the same endpoints. In this paper, we propose a deformable cylinder model, based on homotopy, in which an arbitrary surface interpolated between two contours via a blending function is transformed into another surface over time. We then show how this homotopic deformation can be applied to the realistic animation of human faces in a virtual space teleconferencing system. Specifically, we show that facial expressions such as wrinkling of the forehead and opening and closing of the mouth can be synthesized and animated in real time through 3D homotopic deformations.
| Original language | English |
|---|---|
| Pages (from-to) | 37-48 |
| Number of pages | 12 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 2094 |
| DOIs | |
| Publication status | Published - 1993 Dec 1 |
| Event | Visual Communications and Image Processing 1993 - Cambridge, MA, United States Duration: 1993 Nov 7 → 1993 Nov 7 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Fingerprint Dive into the research topics of 'Time-varying homotopy and the animation of facial expressions for 3d virtual space teleconferencing'. Together they form a unique fingerprint.
Cite this
Kajiwara, S., T. Tanaka, H., Kitamura, Y., Ohya, J., & Kishino, F. (1993). Time-varying homotopy and the animation of facial expressions for 3d virtual space teleconferencing. Proceedings of SPIE - The International Society for Optical Engineering, 2094, 37-48. https://doi.org/10.1117/12.157967