Speech Animation Based on Chinese Mandarin Triphone Model

Based on the previous researches on Chinese mandarin triphone model and co-articulation, a context-dependent visual speech co-articulation model is proposed in this paper. Our presented model focuses on the visual effect of Chinese mandarin co- articulation. In order to get the key synthesized lip shapes in continuous speech, the rule set of the visual speech co-articulation is constructed and the phones´ corresponding visemes weights are calculated by the quantized rule set. We synthesize a sequence of phones´ corresponding lip shapes by using our muscle- based facial model. To produce realistic speech animation, a learning-based approach is used to acquire optimal synthesized transition lip shapes between two phones from all possible selections.