Teleportation in Virtual Reality; A Mini-Review

Aniruddha, Prithul; Adhanom, Isayas Berhe; Folmer, Eelke

doi:10.3389/frvir.2021.730792

Cited by 50 publications

(16 citation statements)

References 28 publications

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“…Upon further investigation, the literature review on teleportation techniques by Prithul et al [64] provided a detailed list of related techniques and studies, confirming this review's findings. Indeed, several VR teleportation techniques were enabled through physical interaction, as this review's findings also suggest.…”

Section: Motion-based Teleporting Typesupporting

confidence: 76%

A Typology of Virtual Reality Locomotion Techniques

Boletsis

Chasanidou

2022

MTI

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Researchers have proposed a wide range of categorization schemes in order to characterize the space of VR locomotion techniques. In a previous work, a typology of VR locomotion techniques was proposed, introducing motion-based, roomscale-based, controller-based, and teleportation-based types of VR locomotion. The fact that (i) the proposed typology is used widely and makes a significant research impact in the field and (ii) the VR locomotion field is a considerably active research field, creates the need for this typology to be up-to-date and valid. Therefore, the present study builds on this previous work, and the typology’s consistency is investigated through a systematic literature review. Altogether, 42 articles were included in this literature review, eliciting 80 instances of 10 VR locomotion techniques. The results indicated that current typology cannot cover teleportation-based techniques enabled by motion (e.g., gestures and gazes). Therefore, the typology was updated, and a new type was added: “motion-based teleporting.”

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Section: Motion-based Teleporting Typesupporting

confidence: 76%

A Typology of Virtual Reality Locomotion Techniques

Boletsis

Chasanidou

2022

MTI

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“…These strengths have been frequently echoed in the literature. Among the relevant empirical studies reviewed by Prithul et al (2021), nearly all studies confirmed a higher performance of teleportation compared to other artificial locomotion techniques. Accordingly, the research interest in this method has grown noticeably in recent years, as evidenced by two reviews of common navigation techniques (Boletsis, 2017), and (Boletsis and Chasanidou, 2022), conducted 5 years apart.…”

Section: Introductionmentioning

confidence: 90%

“…Previous studies have shown that navigation techniques can be improved by tailoring them to the specific use case at hand or by addressing relevant shortcomings (Krekhov et al, 2018;Caputo et al, 2019;Kraus et al, 2020;Adhikari et al, 2022;Tseng et al, 2022). Nevertheless, Prithul et al (2021) found that there are only a few publications that improve the teleportation by explicitly mitigating a known disadvantage of the technique. In this work, building upon the strengths of teleportation, we extend it with three interaction techniques dubbed Mini-Map, Portal Preview, and X-Ray Vision.…”

Section: Introductionmentioning

confidence: 99%

An empirical evaluation of enhanced teleportation for navigating large urban immersive virtual environments

Badr

Amicis

2023

Front. Virtual Real.

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Navigation is the most prevalent interaction in large urban virtual environments (VEs). Any Metaverse application that foresees navigating or exploring virtual cities requires an effective and efficient navigation technique. These environments, however, have distinct characteristics that make the navigation more challenging and the design of the interactions more critical. We have conducted an empirical study to assess how enhancing the teleportation technique with additional capabilities affects the performance of navigating large urban VEs. For this purpose, three interactions have been developed that extend the conventional point-and-click teleportation. The first one is named Mini-Map and provides a top-down view of the user’s surroundings. Portal Preview provides a preview of the selected target location and allows users to choose their desired orientation at that location. The last technique, called X-Ray Vision, makes the buildings around the user translucent and allows teleporting to locations that would otherwise be obscured. A within-subject controlled lab study with twenty five participants has been conducted, where each extension is evaluated individually as well as in combination with others. Our results show that extending the teleportation can significantly improve its performance when navigating large urban VEs. Overall, the X-Ray Vision was the most successful extension with respect to both task metrics and usability measures. Mini-Map was able to improve some of the task metrics, but did not have a significant effect on most self-reported measures. Portal Preview was the least effective extension, however, multiple participants liked the fact that they could define their desired orientation with the controller. Combining all interactions together performed well with respect to the task metrics, but this option was not favored by the participants. Extending the teleportation with X-Ray Vision and Mini-Map was by far the most favored option.

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“…Several VR sickness mitigation strategies have already been developed, including the use of dynamic or foveated field-of-view (FOV) restriction ( Fernandes and Feiner, 2016 ; Adhanom et al, 2020 ; Yamamura et al, 2020 ) and vection blurring ( Budhiraja et al, 2017 ). In practice though, the bulk of locomotor VR experiences that are currently available rely primarily on the use of teleportation ( Al Zayer et al, 2020 ; Monteiro et al, 2021 ) which has been shown in a recent meta review ( Prithul et al, 2021 ) to result in significantly lower VR sickness incidence but at the cost of lower presence and potential spatial disorientation. The reason for the success of teleportation may be in part due to the lack of optic flow generated during use ( Prithul et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

“…In practice though, the bulk of locomotor VR experiences that are currently available rely primarily on the use of teleportation ( Al Zayer et al, 2020 ; Monteiro et al, 2021 ) which has been shown in a recent meta review ( Prithul et al, 2021 ) to result in significantly lower VR sickness incidence but at the cost of lower presence and potential spatial disorientation. The reason for the success of teleportation may be in part due to the lack of optic flow generated during use ( Prithul et al, 2021 ). Optic flow can contribute to both vection ( Palmisano et al, 2011 ; Seno et al, 2018 ) and sensory conflict ( Bubka et al, 2007 ; Palmisano et al, 2011 ), which cause sickness in certain contexts ( Bubka et al, 2007 ).…”

Section: Introductionmentioning

confidence: 99%

VR Sickness Adaptation With Ramped Optic Flow Transfers From Abstract To Realistic Environments

Adhanom

Halow

Folmer

et al. 2022

Front. Virtual Real.

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VR sickness is a major concern for many users as VR continues its expansion towards widespread everyday use. VR sickness is thought to arise, at least in part, due to the user’s intolerance of conflict between the visually simulated self-motion and actual physical movement. Many mitigation strategies involve consistently modifying the visual stimulus to reduce its impact on the user, but this individualized approach can have drawbacks in terms of complexity of implementation and non-uniformity of user experience. This study presents a novel alternative approach that involves training the user to better tolerate the adverse stimulus by tapping into natural adaptive perceptual mechanisms. In this study, we recruited users with limited VR experience that reported susceptibility to VR sickness. Baseline sickness was measured as participants navigated a rich and naturalistic visual environment. Then, on successive days, participants were exposed to optic flow in a more abstract visual environment, and strength of the optic flow was successively increased by increasing the visual contrast of the scene, because strength of optic flow and the resulting vection are thought to be major causes of VR sickness. Sickness measures decreased on successive days, indicating that adaptation was successful. On the final day, participants were again exposed to the rich and naturalistic visual environment, and the adaptation was maintained, demonstrating that it is possible for adaptation to transfer from more abstract to richer and more naturalistic environments. These results demonstrate that gradual adaptation to increasing optic flow strength in well-controlled, abstract environments allows users to gradually reduce their susceptibility to sickness, thereby increasing VR accessibility for those prone to sickness.

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Teleportation in Virtual Reality; A Mini-Review

Cited by 50 publications

References 28 publications

A Typology of Virtual Reality Locomotion Techniques

A Typology of Virtual Reality Locomotion Techniques

An empirical evaluation of enhanced teleportation for navigating large urban immersive virtual environments

VR Sickness Adaptation With Ramped Optic Flow Transfers From Abstract To Realistic Environments

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