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Hand Gesture Synthesis for Conversational Characters

  • Michael Neff
Reference work entry

Abstract

This chapter focuses on the generation of animated gesticulations, co-verbal gestures that are designed to accompany speech. It begins with a survey of research on human gesture, discussing the various forms of gesture, their structure, and timing requirements relative to speech. The two main problems for synthesizing gesture animation are determining what gestures a character should perform (the specification problem) and then generating appropriate motion (the animation problem). The specification problem has used a range of input, including speech prosody, spoken text, and a communicative intent. Both rule-based and statistical approaches are employed to determine gestures. Animation has also used a range of procedural, physics-based, and data-driven approaches in order to solve a significant set of expressive and coordination requirements. Fluid gesture animation must also reflect the context and include listener behavior and floor management. This chapter concludes with a discussion of future challenges.

Keywords

Gesture Character animation Nonverbal communication Virtual agents Embodied conversational agents 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Computer Science and Program for Cinema and Digital MediaUniversity of California – DavisDavisUSA

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