Expression Cloning Based on Anthropometric Proportions and Deformations by Motion of Spherical Influence Zones

Authors

  • Roberto Cesar Cavalcante Vieira Federal University of Ceara (UFC)
  • Creto Vidal Federal University of Ceara (UFC)
  • Joaquim Bento Cavalcante-Neto Federal University of Ceara (UFC)

Keywords:

Facial expression, Anthropometry, Animation

Abstract

Virtual tridimensional creatures are active actors in many types of applications nowadays, such as virtual reality, games and computer animation. The virtual actors encountered in those applications are very diverse, but usually have humanlike behavior and facial expressions. This paper deals with the mapping of facial expressions between virtual characters, based on anthropometric proportions and geometric manipulations by moving influence zones. Facial proportions of a base model is used to transfer expressions to any other model with similar global characteristics (if the base model is a human, for instance, the other models need to have two eyes, one nose and one mouth). With this solution, it is possible to insert new virtual characters in real-time applications without having to go through the tedious process of customizing the characters’ emotions.

Downloads

Download data is not yet available.

Downloads

Published

2011-05-18

Issue

Vol. 2 No. 1 (2011): Special Issue of the XII Symposium on Virtual and Augmented Reality

Section

Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors maintain the author's rights, under de Brazilian legal system, and retain copyright of the work. Authors license the work under a Creative Commons Attribution License. The authors grant the SBC Journal on Interactive Systems the right of its long term archiving and publication under this same licence, without restrictions of time and media, as well to make the required transformations to maintain the work archivable, accessible and of open access.
     
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
     
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).