Comparison of Phoneme and Viseme Based Acoustic Units for Speech Driven Realistic Lip Animation
Bozkurt, E.; Erdem, C.E.; Erzin, E.; Erdem, T.; Ozkan, M.
Signal Processing and Communications Applications, 2007. SIU 2007. IEEE 15th
Volume , Issue , 11-13 June 2007 Page(s):1 - 4
Digital Object Identifier   10.1109/SIU.2007.4298572
Summary:Natural looking lip animation, synchronized with incoming speech, is essential for realistic character animation. In this work, we evaluate the performance of phone and viseme based acoustic units, with and without context information, for generating realistic lip synchronization using HMM based recognition systems. We conclude via objective evaluations that utilization of viseme based units with context information outperforms the other methods.

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