Time-varying homotopy and the animation of facial expressions for 3d virtual space teleconferencing

Souichi Kajiwara, Hiromi T. Tanaka, Yasuichi Kitamura, Jun Ohya, Fumio Kishino

研究成果: Conference article査読


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.

ジャーナルProceedings of SPIE - The International Society for Optical Engineering
出版ステータスPublished - 1993
イベントVisual Communications and Image Processing 1993 - Cambridge, MA, United States
継続期間: 1993 11 71993 11 7

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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