Designing a Non-Verbal Language for        Expressive Avatars        Ben Salem                      Nic Earle  Sheffield H...
Introduction•   CVEs should exploit the possibilities of online    3D graphical spaces.•   To achieve an efficient CVE the...
The Role of Avatars•   Essentially to represent a participant’s    presence, orientation and location, and to a    lesser ...
Issues to be addressed•   We wish to address these important issues :      – Personal Identity of the participants.       ...
Interaction in ExistingCVEs•   There are usually two separate modes of operation    in current CVEs :      – Controlling t...
Screen shot of Active Worlds Alpha World, www.activeworlds.com
Current Avatars•   Wide range of avatar available      – humanoid, cartoon characters, free forms…•   Limited and often no...
Simple ExpressionsBlink        Smile                             Upset             Bye Bye                           Smile...
Simple ExpressionsBlink        Smile                             Upset             Bye Bye                           Smile...
Simple ExpressionsBlink        Smile                             Upset             Bye Bye                           Smile...
Simple ExpressionsBlink        Smile                             Upset             Bye Bye                           Smile...
Simple ExpressionsBlink        Smile                             Upset             Bye Bye                           Smile...
Simple ExpressionsBlink        Smile                             Upset             Bye Bye                           Smile...
Addressing The IssuesIn order to develop a multi-modal communication    within CVEs we need to:•   Define a set of useful ...
Useful ExpressionsWe propose that an avatars body language is  developed to support the following:    • Indicate the state...
Complimenting Discourse Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
Social Interaction Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
Integrating Various ChannelsProblem   In existing CVEs other group members avatars are   scattered around the environment ...
Ben                Circle FeaturesI will not show    •   Gathers up to six avatars together and places them in full view o...
Interfacing With AvatarProblem   Activating gestures and emotions from pop up   menus and tool bars is inadequate due to t...
Some Examples….. Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
Additional Features•   Detection of names within messages is used to control    avatar gaze direction towards recipient. N...
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Cve2000

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Presentation on Non-Verbal Communication for Expressie Avatars at Collaborative Virtual Environments 2000, San Francisco, CA, USA.

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  • Cve2000

    1. 1. Designing a Non-Verbal Language for Expressive Avatars Ben Salem Nic Earle Sheffield Hallam University University of Plymouth electronote@mail.com nic_earle@postmaster.co.uk
    2. 2. Introduction• CVEs should exploit the possibilities of online 3D graphical spaces.• To achieve an efficient CVE there is a need for a multimodal UI through avatars.• Communicative avatars need to be visually expressive. Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    3. 3. The Role of Avatars• Essentially to represent a participant’s presence, orientation and location, and to a lesser degree state.• We propose to extend this to encompass the following: – better personalisation and status. – Personal expressions and emotions. – Better group communication. Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    4. 4. Issues to be addressed• We wish to address these important issues : – Personal Identity of the participants. • Gender, interests, status, accessibility – communication from one to one as well as within a group. – Participants discourses in a CVE. • Communication channels Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    5. 5. Interaction in ExistingCVEs• There are usually two separate modes of operation in current CVEs : – Controlling the avatar – Typing on the keyboard or speaking with a micro- phone.• CVEs have a separate window for the textual and some gestural dialogues. Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    6. 6. Screen shot of Active Worlds Alpha World, www.activeworlds.com
    7. 7. Current Avatars• Wide range of avatar available – humanoid, cartoon characters, free forms…• Limited and often non-expressive gestures and expressions – jump, smile, wave, turn around, dance• What is the best form of NVC – Body postures, Facial expressions, gestures, gaze, lip movements, etc.• participants perception of other’s expressions Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    8. 8. Simple ExpressionsBlink Smile Upset Bye Bye Smile & Blind Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    9. 9. Simple ExpressionsBlink Smile Upset Bye Bye Smile & Blind Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    10. 10. Simple ExpressionsBlink Smile Upset Bye Bye Smile & Blind Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    11. 11. Simple ExpressionsBlink Smile Upset Bye Bye Smile & Blind Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    12. 12. Simple ExpressionsBlink Smile Upset Bye Bye Smile & Blind Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    13. 13. Simple ExpressionsBlink Smile Upset Bye Bye Smile & Blind Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    14. 14. Addressing The IssuesIn order to develop a multi-modal communication within CVEs we need to:• Define a set of useful expressions for avatars• Integrate the different channels of communication i.e. text, audio, spatial language and body language• Develop a better method of Interfacing with an avatars visual behaviours Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    15. 15. Useful ExpressionsWe propose that an avatars body language is developed to support the following: • Indicate the state of the avatar owner using body posture e.g. available for conversation or not, and is avatar an agent or human. • Compliment discourse using hand gestures and face expression. • Support social interaction using spatial behaviour, hand gestures & face expressions. Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    16. 16. Complimenting Discourse Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    17. 17. Social Interaction Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    18. 18. Integrating Various ChannelsProblem In existing CVEs other group members avatars are scattered around the environment and the different channels of communication are separated i.e. spatial behavior, text, audio, gestures and face expressions.Solution We have developed a concept we call a conversation circle. Circles gather group members avatars together so that each group member is in full view. This provides a framework for the different channels of communication to be brought into a single space. Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    19. 19. Ben Circle FeaturesI will not show • Gathers up to six avatars together and places them in full view ofthis slide, each otherhowever this is • Circles are expandable and spatially, there is position of dominance (Avatars are positioned autonomously )what I will talk • A circle is created by a participant clicking on another whoabout when I accepts conversation offer • An Avatar is locked onto circle circumference until participantshow the next leaves groupslide I.e. image • A central light creates illuminates faces, creates shadows which define the groups space • Multiple circles can exist simultaneously • The groups space is out of bounds to outsiders • Circles can be private, semi-private or public • Group behavior e.g. looking for newcomer I.e. gap in perimeter Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    20. 20. Interfacing With AvatarProblem Activating gestures and emotions from pop up menus and tool bars is inadequate due to the conscious action required to be taken by a participant.Solution We propose an autonomous system where text/ audio messages are scanned scan for keywords, names and symbols. Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    21. 21. Some Examples….. Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco
    22. 22. Additional Features• Detection of names within messages is used to control avatar gaze direction towards recipient. No name detected fixes gaze• In textual systems a priority system exists for messages that contain more than one trigger. In audio systems triggers attached to phonemes• Participants must be able to control the autonomy i.e. turn on and off, customize keywords• Mood/emotion set using contextual menu called by by clicking on own avatar Designing a Non-Verbal Language for Expressive Avatars, CVE2000 San Francisco

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