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ETD Abstract Container

Abstract Header

A Facial Model and Animation Techniques for Animated Speech

King, Scott Alan
http://rave.ohiolink.edu/etdc/view?acc_num=osu991423221

Abstract Details

2001, Doctor of Philosophy, Ohio State University, Computer and Information Science.
Creating animated speech requires a facial model capable of representing the myriad shapes the human face experiences during speech and a method to produce the correct shape at the correct time. We present a facial model designed to support animated speech. Our model has a highly deformable lip model that is grafted onto the input facial geometry providing the necessary geometric complexity for creating lip shapes and high-quality lip renderings. We provide a highly deformable tongue model that can represent the shapes the tongue experiences during speech. We add teeth, gums, and upper palate geometry to complete the inner mouth. For more realistic movement of the skin we consider the underlying soft and hard tissue. To decrease the processing time we hierarchically deform the facial surface. We also present a method to animate the facial model over time to create animated speech. We use a track-based animation system that has one facial model parameter per track with possibly more than one track per parameter. The tracks contain control points for a curve that describes the value of the parameter over time. We allow many different types and orders of curves that can be combined in different manners. For more realistic speech we develop a coarticulation model that defines visemes as curves instead of a single position. This treats a viseme as a dynamic shaping of the vocal tract and not as a static shape.
Richard Parent (Advisor)
275 p.
Computer Science
Facial Animation; Facial Modeling; Speech Synchroniation; Lip-Synch

Recommended Citations

Citations

  • King, S. A. (2001). A Facial Model and Animation Techniques for Animated Speech [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu991423221

    APA Style (7th edition)

  • King, Scott. A Facial Model and Animation Techniques for Animated Speech. 2001. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu991423221.

    MLA Style (8th edition)

  • King, Scott. "A Facial Model and Animation Techniques for Animated Speech." Doctoral dissertation, Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu991423221

    Chicago Manual of Style (17th edition)

osu991423221
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© 2001, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.