A Constraint-Based Approach to Visual Speech for a Mexican-Spanish Talking Head. (14th January 2008)

• Record Type: Journal Article
• Authors: Lazalde, Oscar Martinez; Maddock, Steve; Meredith, Michael
• Other Names: Wong Kok Wai Academic Editor.
• Is Part Of: International journal of computer games technology. Volume 2008(2008)
• Publication Date: 2008-01-14
• Subjects: Computer games -- Design -- Periodicals; Computer games -- Programming -- Periodicals; Jeux d'ordinateur; Jeux d'ordinateur -- Programmation; Computer games -- Design; Computer games -- Programming; Electronic journals; Periodicals; 794.81
• DOI: 10.1155/2008/412056
• Languages: English
• ISSNs: 1687-7047

Abstract

Abstract : A common approach to produce visual speech is to interpolate the parameters describing a sequence of mouth shapes, known as visemes, where a viseme corresponds to a phoneme in an utterance. The interpolation process must consider the issue of context-dependent shape, or coarticulation, in order to produce realistic-looking speech. We describe an approach to such pose-based interpolation that deals with coarticulation using a constraint-based technique. This is demonstrated using a Mexican-Spanish talking head, which can vary its speed of talking and produce coarticulation effects.