Dynamic Visemes

Project Members

Sarah Taylor (University of East Anglia)
Moshe Mahler (Disney Research Pittsburgh)
Barry-John Theobald (University of East Anglia)
Iain Matthews (Disney Research Pittsburgh)

We present a new method for generating a dynamic, concatenative, unit of visual speech that can generate realistic visual speech animation. We redefine visemes as temporal units that describe distinctive speech movements of the visual speech articulators. Traditionally visemes have been surmized as the set of static mouth shapes representing clusters of contrastive phonemes (e.g. /p, b, m/, and /f, v/). In this work, the motion of the visual speech articulators are used to generate discrete, dynamic visual speech gestures. These gestures are clustered, providing a finite set of movements that describe visual speech, the visemes. Dynamic visemes are applied to speech animation by simply concatenating viseme units. We compare to static visemes using subjective evaluation. We find that dynamic visemes are able to produce more accurate and visually pleasing speech animation given phonetically annotated audio, reducing the amount of time that an animator needs to spend manually refining the animation.



Publications

The Effect of Speaking Rate on Audio and Visual Speech-Thumbnail

The Effect of Speaking Rate on Audio and Visual Speech
May 4, 2014
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2014
Paper File [pdf, 1.52 MB]

Dynamic Units of Visual Speech-Thumbnail

Dynamic Units of Visual Speech
July 29, 2012
ACM SIGGRAPH / Eurographics Symposium on Computer Animation (SCA) 2012
Paper File [pdf, 20.67 MB]

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