[Demo] Measurement of perceptual tolerance for inconsistencies within mixed reality scenes

Hough, Gregory; Williams, Ian; Athwal, Cham

doi:10.1109/ismar.2014.6948480

Cited by 1 publication

(2 citation statements)

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“…In these case study investigations, it was noted how actors frequently failed to position their hands correctly on the surface of the virtual objects, both at the start and throughout the interaction. Our further studies [5], [6] found, that as the actors have no physical boundaries to aid their hand placement, they were likely to place them either outside, away from the surface of the object (we term this "overestimation" of the object size) or inside the object, therefore intersecting it (termed "underestimation"). To a third party viewer, for example a screen or TV viewer, these effects can make the interaction appear implausible [6].…”

Section: Introductionmentioning

confidence: 95%

“…Our further studies [5], [6] found, that as the actors have no physical boundaries to aid their hand placement, they were likely to place them either outside, away from the surface of the object (we term this "overestimation" of the object size) or inside the object, therefore intersecting it (termed "underestimation"). To a third party viewer, for example a screen or TV viewer, these effects can make the interaction appear implausible [6]. A similar issue was documented by Minoh et al [7] who recognised that misalignment between the actor and virtual object could negatively impact the plausibility of an interaction, from the perspective of a third person viewer.…”

Section: Introductionmentioning

confidence: 95%

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Fidelity and plausibility of bimanual interaction in mixed reality

Hough¹,

Williams²,

Athwal³

2015

IEEE Trans. Visual. Comput. Graphics

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When human actors interact with virtual objects the result is often not convincing to a third party viewer, due to incongruities between the actor and object positions. In this study we aim to quantify the magnitude and impact of the errors that occur in a bimanual interaction, that is when an actor attempts to move a virtual object by holding it between both hands. A three stage framework is presented which firstly captures the magnitude of these interaction errors, then quantifies their effect on the relevant third party audience, and thirdly assesses methods to mitigate the impact of the errors. Findings from this work show that the degree of error was dependent on the size of the virtual object and also on the axis of the hand placement with respect to the axis of the interactive motion. In addition, actor hand placement outside and away from the object surface was found to affect the visual plausibility considerably more than when the actor's hands were within the object boundaries. Finally, a method for automatic adaptation of the object size to match the distance between the actor's hands gave a significant improvement in the viewers' assessment of the scene plausibility.

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Section: Introductionmentioning

confidence: 95%