Redirected Touching: Training and adaptation in warped virtual spaces

Kohli, Luv; Whitton, Mary C.; Brooks, Frederick P.

doi:10.1109/3dui.2013.6550201

Cited by 48 publications

(23 citation statements)

References 28 publications

(33 reference statements)

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“…II-A, we ensure that whenever the users touch the TO, they also touch the VO. To achieve this result, when the width of the VO and TO differs, we employ a simple virtual warping effect to (slightly) redirect the virtual fingers [10].…”

Section: User Study #1: Width a Procedures Descriptionmentioning

confidence: 99%

“…Sait et al [7], [8] mapped a single tangible object into multiple virtual ones by combining a redirection approach, that uses rotational adjustments to align the user during virtual locomotion, and a resetting approach, that introduces a discrete rotational update when the user virtually approaches a target for interaction. Redirection approaches have also been used in [9], [10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

How Different Tangible and Virtual Objects Can Be While Still Feeling the Same?

Pacchierotti¹,

Emily²,

Chevalier³

et al. 2019

2019 IEEE World Haptics Conference (WHC)

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Tangible objects are used in Virtual Reality to provide human users with distributed haptic sensations when grasping virtual objects. To achieve a compelling illusion, there should be a good correspondence between the haptic features of the tangible object and those of the corresponding virtual one, i.e., what users see in the virtual environment should match as much as possible what they touch in the real world. This paper aims at quantifying how similar tangible and virtual objects need to be, in terms of haptic perception, to still feel the same. As it is often not possible to create tangible replicas of all the virtual objects in the scene, it is important to understand how different tangible and virtual objects can be without the user noticing. This paper reports on the just-noticeable difference (JND) when grasping, with a thumb-index pinch, a tangible object which differ from a seen virtual one on three important haptic features: width, local orientation, and curvature. Results show JND values of 5.75%, 43.8%, and 66.66% of the reference shape for the width, local orientation, and local curvature features, respectively. These results will enable researchers in the field of Virtual Reality to use a reduced number of tangible objects to render multiple virtual ones.

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Section: User Study #1: Width a Procedures Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

How Different Tangible and Virtual Objects Can Be While Still Feeling the Same?

Pacchierotti¹,

Emily²,

Chevalier³

et al. 2019

2019 IEEE World Haptics Conference (WHC)

View full text Add to dashboard Cite

show abstract

“…These can even represent slightly different geometries if redirection techniques are applied (Kohli, Whitton, & Brooks, 2013). The authors mention tangible props as a feasible solution in many settings.…”

mentioning

confidence: 99%

“…The authors mention tangible props as a feasible solution in many settings. These can even represent slightly different geometries if redirection techniques are applied (Kohli, Whitton, & Brooks, 2013). The resulting spatio-temporal distortions can go unnoticed by users, but possible side effects are not yet understood.…”

mentioning

confidence: 99%

Virtually the ultimate research lab

Kulik

2018

British J of Psychology

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Virtual reality (VR) can serve as a viable platform for psychological research. The real world with many uncontrolled variables can be masked to immerse participants in complex interactive environments that are under full experimental control. However, as any other laboratory setting, these simulations are not perceived equally to reality and they also afford different behaviour. We need a better understanding of these differences, which are often related to parameters of the technical setup, to support valid interpretations of experimental results.

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“…Redirected touching is another benefit of visual dominance that enables the use of one haptic device for multiple virtual objects [4,40]. The process involves either redirecting a user's hand, or warping the perceived location of virtual objects relative to the haptic device.…”

Section: Visual Dominancementioning

confidence: 99%

Haptic Feedback in Virtual Reality with Deformation and Shape-Change

McClelland¹

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Past Virtual Reality (VR) research shows that haptic feedback increases presence and improves users' task performance. However, providing haptic feedback for multiple virtual objects usually requires complex, immobile systems, or multiple haptic props. We present a new approach that applies deformable, shape-changing devices to VR haptics, leveraging the dominance of human vision in VR to provide realistic haptic feedback with physical shape approximations. Our first study evaluates our HaptoBend prototype through an elicitation study. Results support the use of physical shape approximations and reveal important user preferences. We translate these results and past work into a Design Criteria to inform our second prototype, Adaptic. In our second study, we compare docking performance and adherence to our Design Criteria with Adaptic, a Razor Hydra Controller, and haptic props. We found Adaptic did well in satisfying our Design Criteria and had little difference in performance compared to the other haptic approaches.

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Redirected Touching: Training and adaptation in warped virtual spaces

Cited by 48 publications

References 28 publications

How Different Tangible and Virtual Objects Can Be While Still Feeling the Same?

How Different Tangible and Virtual Objects Can Be While Still Feeling the Same?

Virtually the ultimate research lab

Haptic Feedback in Virtual Reality with Deformation and Shape-Change

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