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

• Published in: Computer animation and virtual worlds Vol. 28; no. 3-4
• Main Authors: Kim, Kangsoo, Maloney, Divine, Bruder, Gerd, Bailenson, Jeremy N., Welch, Gregory F.
• Format: Journal Article
• Language: English
• Published: Chichester Wiley Subscription Services, Inc 01.05.2017
• Subjects: Augmented reality; Behavior; Coherence; copresence; Human behavior; physical–virtual coherence; social presence; virtual human; Virtual humans
• ISSN: 1546-4261; 1546-427X
• DOI: 10.1002/cav.1771

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. In augmented reality, people can feel the illusion of virtual humans integrated into a real space, but perceived affordances might conflict, for instance, when the virtual content occupies the same space as real objects. In this paper, we address an effort to avoid this conflict by maintaining a virtual human's spatial and behavioral coherence with respect to real objects or events. We present experimental results supporting the benefits of the virtual human's spatial and behavioral coherence on perceived social/copresence.