Journal of Human-Computer Studies. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this
Traditionally, social interaction research has concentrated on either fully virtually embodied agents (e.g. embodied conversational agents) or fully physically embodied agents (e.g. robots). For some time, however, both areas have started augmenting their agents' capabilities for social interaction using ubiquitous and intelligent environments.We are placing different agent systems for social interaction along Milgram's Reality-Virtuality Continuumaccording to the degree they are embodied in a physical, virtual or mixed reality environment-and show systems that follow the next logical step in this progression, namely social interaction in the middle of Milgram's continuum, that is, agents richly embodied in the physical and virtual world. This paper surveys the field of social interaction research with embodied agents with a particular view towards their embodiment forms and highlights some of the advantages and issues associated with the very recent field of social interaction with mixed reality agents.
This paper contests that Mixed Reality (MR) offers a potential solution in achieving transferability between Human Computer Interaction (HCI) and Human Robot Interaction (HRI). Virtual characters (possibly of a robotic genre) can offer highly expressive interfaces that are as convincing as a human, are comparably cheap and can be easily adapted and personalized. We introduce the notion of a mixed reality agent, i.e. an agent consisting of a physical robotic body and a virtual avatar displayed upon it. We realized an augmented reality interface with a Head-Mounted Display (HMD) in order to interact with such systems and conducted a pilot study to demonstrate the usefulness of mixed reality agents in human-robot collaborative tasks.
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