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Verification, Validation and Evaluation of the Virtual Human Markup Language (VHML)
Linköping University, Department of Electrical Engineering.
Linköping University, Department of Electrical Engineering.
Linköping University, Department of Electrical Engineering.
2002 (English)Independent thesis Basic level (professional degree)Student thesisAlternative title
Verifiering, validering och utvärdering av Virtual Human Markup Language (VHML) (Swedish)
Abstract [en]

Human communication is inherently multimodal. The information conveyed through body language, facial expression, gaze, intonation, speaking style etc. are all important components of everyday communication. An issue within computer science concerns how to provide multimodal agent based systems. Those are systems that interact with users through several channels. These systems can include Virtual Humans. A Virtual Human might for example be a complete creature, i.e. a creature with a whole body including head, arms, legs etc. but it might also be a creature with only a head, a Talking Head. The aim of the Virtual Human Markup Language (VHML) is to control Virtual Humans regarding speech, facial animation, facial gestures and body animation. These parts have previously been implemented and investigated separately, but VHML aims to combine them. In this thesis VHML is verified, validated and evaluated in order to reach that aim and thus VHML is made more solid, homogenous and complete. Further, a Virtual Human has to communicate with the user and even though VHML supports a number of other ways of communication, an important communication channel is speech. The Virtual Human has to be able to interact with the user, therefore a dialogue between the user and the Virtual Human has to be created. These dialogues tend to expand tremendously, hence the Dialogue Management Tool (DMT) was developed. Having a toolmakes it easier for programmers to create and maintain dialogues for the interaction. Finally, in order to demonstrate the work done in this thesis a Talking Head application, The Mystery at West Bay Hospital, has been developed and evaluated. This has shown the usefulness of the DMT when creating dialogues. The work that has been accomplished within this project has contributed to simplify the development of Talking Head applications.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2002. , 248 p.
LiTH-ISY-Ex, 3188
Keyword [en]
Technology, Talking Head, Virtual Human, Dialogue Management, XML, VHML, Facial Animation, Computer Science, Human Computer Interaction
Keyword [sv]
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-1137OAI: diva2:17768
Available from: 2002-03-18 Created: 2002-03-18

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