MiRA—Mixed Reality Agents

Holz, Thomas; Campbell, Abraham G.; O’Hare, Gregory M. P.; Stafford, John W.; Martin, Alan; Dragone, Mauro

doi:10.1016/j.ijhcs.2010.10.001

Cited by 77 publications

(44 citation statements)

References 40 publications

(36 reference statements)

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“…Holz et al [Holz et al 2011[Holz et al , 2009] provide a survey of various forms of agents in a fully physical, a fully virtual, or a mixed reality (MR) environment in the context of social interaction. They further detail the benefits and issues with social interaction with virtual agents.…”

Section: Virtual Humans In Armentioning

confidence: 99%

“…The former denotes the sense of "being socially connected" and the latter "being together." While there is no universal agreement on the definitions for social and co-presence, Harms and Biocca [Harms and Biocca 2004] consider co-presence as one of several sub-dimensions that embody social presence, and Blascovich et al [Blascovich 2002; define social presence both as a "psychological state in which the individual perceives himself or herself as existing within an interpersonal environment" and "the degree to which one believes that he or she is in the presence of, and dynamically interacting with, other veritable human beings. " Both definitions are related to presence, which denotes the sense of "being there. "…”

Section: Social and Co-presence With Virtual Humansmentioning

confidence: 99%

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Exploring the effects of observed physicality conflicts on real-virtual human interaction in augmented reality

Kim

Bruder

Welch

2017

Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology

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Augmented reality (AR) enables the illusion of computer-generated virtual objects and humans co-existing with us in the real world. Virtual humans (VHs) in AR can further induce an illusion of physicality in the real world due to their form of presentation and their behavior, such as showing awareness of their surroundings. However, certain behaviors can cause a conflict that breaks this illusion, for example, when we see a VH passing through a physical object. In this paper we describe a human-subject study that we performed to test the hypothesis that participants experience higher copresence in conflict-free circumstances, and we investigate the magnitude of this effect and behavioral manifestations. Participants perceived a social situation in a room that they shared with a VH as seen through a HoloLens head-mounted display. The behavior of the VH either caused conflicts with (occupied the same space as) physical entities, or avoided them. Our results show that the conflicts in physicality significantly reduced subjective reports of copresence. Moreover, we observed that participants were more likely to cause a conflict (occupy the same space as) virtual entities in case the VH had avoided the conflict. We discuss implications for future research and shared AR setups with real-virtual human interactions. CCS CONCEPTS • Human-centered computing → User studies; Mixed / augmented reality; • Computing methodologies → Mixed / augmented reality; • Applied computing → Psychology;

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Section: Virtual Humans In Armentioning

confidence: 99%

Section: Social and Co-presence With Virtual Humansmentioning

confidence: 99%

Exploring the effects of observed physicality conflicts on real-virtual human interaction in augmented reality

Kim

Bruder

Welch

2017

Proceedings of the 23rd ACM Symposium on Virtual Reality Software and Technology

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“…Jo et al developed an AR telepresence framework using a virtual avatar in AR controlled by a remote user and discussed how to maintain the avatar's realism in the physical local place by adapting its motion to the surrounding physical objects. Holz et al surveyed various forms of agents in a fully physical, a fully virtual, or an MR environment in the context of social interaction, and detailed the advantages and issues with social interaction with MR agents. All these examples directly or indirectly addressed the importance of plausibility/coherence between the virtual humans and the physical–virtual shared environment.…”

Section: Related Workmentioning

confidence: 99%

The effects of virtual human's spatial and behavioral coherence with physical objects on social presence in AR

Kim

Maloney

Bruder

et al. 2017

Computer Animation & Virtual

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In augmented reality, people can feel the illusion of virtual humans (VHs) integrated into a real (physical) space. However, affordances of the real world and virtual contents might conflict, for example, when the VHs and real objects "collide" by occupying the same space. This implausible conflict can cause a break in presence in real-virtual human interactions. In this paper, we address an effort to avoid this conflict by maintaining the VH's spatial and behavioral coherence with respect to the physical objects or events (e.g., natural occlusions and appropriate help-requesting behaviors to avoid implausible physical-virtual collisions). We present a human subject experiment examining the effects of the physical-virtual coherence on human perceptions, such as social/copresence and behaviors with the VH. The basic ideas, experimental design, and results supporting the benefit of the VH's spatial and behavioral coherence are presented and discussed.

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“…The augmentations enhance the learning outcome since "the AR/MR systems allow the augmentation of the user's perception of the real world, but also the use of existent visual and spatial abilities and an enhancement of the interaction capacities of the users" (Holza et al, 2011). This is why the AR systems have to "give their users the illusion that digital objects are in the same space as physical ones" (Costanza et al, 2009), and therefore "the digital objects need to be precisely positioned into the real environment and aligned with the real objects in real time" (Azuma et al, 2001).…”

Section: The Mixed Reality Paradigmmentioning

confidence: 99%

3D Online Virtual Museum as e-Learning Tool - A Mixed Reality Experience

Gheorghiu

źtefan²

2014

Proceedings of the 6th International Conference on Computer Supported Education

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The paper discusses the use of 3D online virtual museums as educational instruments for children in economically disadvantaged communities. It discusses the advantages of simulation and immersion as learning enhancements, compared to traditional learning methods, using a case study based on the currently on-going work of development of a virtual museum (www.timemaps.net/timemap/?page_id=6). Presenting chronologically layered information, the museum offers a series of e-learning modules teaching traditional crafts technologies. The current audience is represented by children from a Romanian village community. The paper covers a description of the methodology used, as well as an evaluation of the usefulness of the solution by the target audience. In conclusion, the paper outlines a strategy for further development of the proposed e-learning solution.validating the use of the 3D virtual museums as modern and effective learning instruments. The paper closes with an outline of the future development strategy.

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MiRA—Mixed Reality Agents

Abstract: 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

Cited by 77 publications

References 40 publications

Exploring the effects of observed physicality conflicts on real-virtual human interaction in augmented reality

Exploring the effects of observed physicality conflicts on real-virtual human interaction in augmented reality

The effects of virtual human's spatial and behavioral coherence with physical objects on social presence in AR

3D Online Virtual Museum as e-Learning Tool - A Mixed Reality Experience

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