A Constraint-Based Approach to Visual Speech for a Mexican-Spanish Talking Head

Oscar Martinez Lazalde, Steve Maddock, Michael Meredith
2008 International Journal of Computer Games Technology  
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
more » ... h talking head, which can vary its speed of talking and produce coarticulation effects.
doi:10.1155/2008/412056 fatcat:3jdadvq24rd3phqcfqjecknzri