SpaceTime: adaptive control of the teleported avatar for improved AR tele‐conference experience

Jo, Dongsik; Kim, Ki Hong; Kim, Gerard Jounghyun

doi:10.1002/cav.1645

Cited by 39 publications

(33 citation statements)

References 26 publications

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“…Torre et al [Torre et al 2000] superimposed an AR human that could play a checker game with real human users in a shared MR environment. Jo et al [Jo et al 2015] developed an AR tele-presence framework using an avatar in AR controlled by a remote user, and discussed how to maintain the avatar's realism in the physical place by adapting its motion considering the surrounding physical objects. Pejsa et al [Pejsa et al 2016] developed a life-sized telepresence system called "Room2Room. "…”

Section: Virtual Humans In Armentioning

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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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%

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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“…The recent technological improvements in reconstruction and human motion tracking have allowed to create animated and realistic virtual avatars and considerable efforts are devoted to understand how human beings react in presence of virtual agents. As confirmed by several recent works, such as Jo et al (2015Jo et al ( , 2017 and Koskela et al (2018) or commercial applications 1 , the different uses of a virtual avatar are increasingly becoming object of interest and analysis. To make sure that the avatar controlled by the remote expert operator will be positively accepted by the local unskilled user, the behavior of the virtual agent and its position in the real world should be as realistic and convincing as possible.…”

Section: State Of Artmentioning

confidence: 87%

A Comparison Between Two Different Approaches for a Collaborative Mixed-Virtual Environment in Industrial Maintenance

et al. 2019

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Nowadays the market is becoming increasingly competitive, factories are required not only to enhance the product quality but also to reduce manufacturing and maintenance times. In an industrial context, modern factories are composed by many automated systems, such as industrial robots, which can perform different tasks. Although industrial robots are becoming more powerful and efficient, human workers are still required to accomplish different operations, such as training and maintenance procedures. The proposed research aims to assess a remote interaction system in an industrial training collaborative mixed-reality (CMR) environment. A remote expert user is capable of explaining a training procedure to an unskilled local user. Remote and local users interact using different interaction systems: the remote operator gives assistance using an immersive Virtual Reality (VR) device, whereas the local user interacts using a wearable Augmented Reality (AR) device. A comparison between an interaction based on the presence of a virtual human and one based on the use of abstract icons is proposed. In the first case, a virtual 3D representation of the remote technician is shown to the local user by using AR: the remote technician can pinpoint the components involved in the training procedure and the local user can visualize the instructions through some animations of the virtual avatar. In the second case, the local user cannot see a 3D representation of the remote technician; on the other hand, different 3D models, such as animated icons, are displayed to the local operator through AR depending on the component pinpointed by the remote technician in the virtual environment. Each 3D icon should suggest to the local user which component has to be manipulated at the current step of the procedure. Preliminary results suggest that the interface that requires less resources to be developed and managed should be preferred. Although in no audio condition the virtual avatar may improve the sense of presence of the remote technician, the use of abstract metaphors seems to be of primary importance to successfully complete an industrial task.

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“…al. who developed an AR tele-presence framework using an AH controlled by a remote user [15]. They discussed a problem of physical discrepancy between two locations in AH-based telepresence systems, e.g., the chair a user is sitting on can be different in shape and size from another chair his/her avatar should be sitting on in a remote location, which could reduce the AH's naturalism and realism.…”

Section: Augmented Humans (Ahs)mentioning

confidence: 98%

Maintaining and Enhancing Human-Surrogate Presence in Augmented Reality

Kim

Welch

2015

2015 IEEE International Symposium on Mixed and Augmented Reality Workshops

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We present some background and ideas related to a human's sense of presence with a human surrogate (a stand-in for a human) in an augmented reality (AR) setting. In particular we examine several factors related to human surrogates that are common to robotics, virtual reality, and augmented reality; and some challenges that are unique to AR. We then discuss the roles of surrogate characteristics and behaviors in maintaining and perhaps enhancing a sense of presence with a surrogate. We conclude by sharing some ideas for intentionally employing particular surrogate characteristics/behaviors that could simultaneously address the AR-specific challenges while maintaining and perhaps even enhancing the sense of co-presence/social presence with human surrogates in AR.

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SpaceTime: adaptive control of the teleported avatar for improved AR tele‐conference experience

Cited by 39 publications

References 26 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

A Comparison Between Two Different Approaches for a Collaborative Mixed-Virtual Environment in Industrial Maintenance

Maintaining and Enhancing Human-Surrogate Presence in Augmented Reality

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