Postural stability analysis in virtual reality using the HTC vive

Soffel, Fabian; Zank, Markus; Kunz, Andreas

doi:10.1145/2993369.2996341

Cited by 27 publications

(8 citation statements)

References 7 publications

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“…Other related work presented experiments that were performed with the use of 3D Cave projectors and polarized lenses presenting the test subjects with visualvestibulosomatosensory conflicting information [28]. Most recent work presented in [29] analyses postural stability in VR using the HTC Vive. Postural stability was measured through body sway using the tracking system provided by the HTC Vive.…”

Section: Balance and Visual Induced Motion Sickness Studies In Vrmentioning

confidence: 99%

Analysing Balance Loss in VR Interaction with HMDs

Martínez¹,

Paganelli²,

Raposo³

2018

JIS

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Immersive virtual reality (VR) has been used in different fields such as training, educational programs, entertainment, psychological treatments, and rehabilitation. Despite its broad utilization, some issues limit its application such as the loss of balance. Balance is disturbed because visual stimuli received from the virtual scenario are not in harmony with perceived stimuli by the proprioception and vestibular systems that remain in contact with the real environment. With the increasing popularity and accessibility of high-quality VR systems, concerns have been raised about the propensity of VR to induce balance loss. Balance is essential for safe use of VR experience and its loss can result in severe injury. In this work, we present a methodology and the necessary tools to quantify the influence of VR on the user’s balance and assess risk of falls during VR interaction. By means of an experiment making use of an Oculus Rift and a MS Kinect Sensor, we observe, quantify and compare the effect of VR scenes with different levels of danger on the balance of users, as well as the effect of visual and auditory warnings of balance loss. Results suggest that auditory signs were not effective in warning users about risk of fall, and that the order which the scenes are presented to users affects their behavior. Users who were first presented to a more challenging scene proceeded more carefully and most of the time carried this behavior to the other less challenging scenes.

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Section: Balance and Visual Induced Motion Sickness Studies In Vrmentioning

confidence: 99%

Analysing Balance Loss in VR Interaction with HMDs

Martínez¹,

Paganelli²,

Raposo³

2018

JIS

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“…To induce users to become more immersed in a VR system, the system generally presents the required 3D scene information through a VR headset. At present, Oculus Rift [11,12], 3Glasses [13], and HTC Vive [14,15] are the most popular VR headsets, as shown in Figure 1. 1. Oculus Rift [11,12] Oculus Rift is a VR head-mounted display (HMD) system developed by Oculus VR.…”

Section: Vr Headsetmentioning

confidence: 99%

“…Therefore, users are not allowed to move freely to interact in fields through 3Glasses. [14,15] HTC Vive is a highly popular VR HMD at present. It is capable of utilizing the room scale technology to set the real-world room environment as a 3D interactive virtual space in which users are allowed to move freely and use a handheld controller with the motion tracking function to manipulate 3D virtual objects.…”

Section: Glasses [13]mentioning

confidence: 99%

Interaction Design in Virtual Reality Game Using Arduino Sensors

Tseng¹,

Chu²

2018

Simulation and Gaming

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Virtual reality (VR) is the use of computer simulation to produce a virtual world, providing users with a variety of sensory simulation, which enables users to feel as though they are in the virtual world. Currently, mature three-dimensional (3D) computer graphics technology can present realistic 3D visual effects. However, system interaction is still mainly through specific interactive devices for system control, such as the Vive controller for HTC Vive. In order to enable the user to control the game intuitively, this study employed a currently popular Arduino technology to carry out design of interactive control devices for virtual reality. The interaction design in this study is based mainly on a virtual reality baseball game. To let users carry out swings more intuitively in the baseball game, this study used actual baseball bat-installed sensors, called "Arduino baseball bat," as a replacement for the VR joystick. The implemented system was roughly divided into two components: a transmitter system module on the bat and a receiver system module connecting to the server host. According to the results, our system cannot only realistically display 3D visual effects, but the Arduino baseball bat can also provide intuitive real-time game interaction for the user.

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“…Numerous studies have examined the possibility of using virtual reality for improving rehabilitation and gait (Booth et al 2013;Corbetta et al 2015;Darekar et al 2015;Palacios-Navarro et al 2016), but few studies used head-mounted displays to provide fully immersive virtual reality. Among those that have measured gait stability, all reported worsened stability when subjects used the virtual reality head-mounted display (Calogiuri et al 2017;Epure et al 2014;Kawamura and Kijima 2016;Kelly et al 2008;Lott et al 2003;Robert et al 2016;Soffel et al 2016). Two studies have found improvements in timed up-and-go performance in stroke patients when trained in virtual reality compared with conventional training (Jung et al 2012;Kang et al 2012), but the head-mounted displays for these studies were similar to spectacles placed away from the eyes, providing users with peripheral vision.…”

Section: Introductionmentioning

confidence: 99%

Transient visual perturbations boost short-term balance learning in virtual reality by modulating electrocortical activity

Peterson

Rios

Ferris

2018

Journal of Neurophysiology

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Immersive virtual reality can expose humans to novel training and sensory environments, but motor training with virtual reality has not been able to improve motor performance as much as motor training in real-world conditions. An advantage of immersive virtual reality that has not been fully leveraged is that it can introduce transient visual perturbations on top of the visual environment being displayed. The goal of this study was to determine whether transient visual perturbations introduced in immersive virtual reality modify electrocortical activity and behavioral outcomes in human subjects practicing a novel balancing task during walking. We studied three groups of healthy young adults (5 male and 5 female for each) while they learned a balance beam walking task for 30 min under different conditions. Two groups trained while wearing a virtual reality headset, and one of those groups also had half-second visual rotation perturbations lasting ~10% of the training time. The third group trained without virtual reality. We recorded high-density electroencephalography (EEG) and movement kinematics. We hypothesized that virtual reality training with perturbations would increase electrocortical activity and improve balance performance compared with virtual reality training without perturbations. Our results confirmed the hypothesis. Brief visual perturbations induced increased theta spectral power and decreased alpha spectral power in parietal and occipital regions and improved balance performance in posttesting. Our findings indicate that transient visual perturbations during immersive virtual reality training can boost short-term motor learning by inducing a cognitive change, minimizing the negative effects of virtual reality on motor training. NEW & NOTEWORTHY We found that transient visual perturbations in virtual reality during balance training can boost short-term motor learning by inducing a cognitive change, overcoming the negative effects of immersive virtual reality. As a result, subjects training in immersive virtual reality with visual perturbations have equivalent performance improvement as training in real-world conditions. Visual perturbations elicited cortical responses in occipital and parietal regions and may have improved the brain's ability to adapt to variations in sensory input.

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Postural stability analysis in virtual reality using the HTC vive

Cited by 27 publications

References 7 publications

Analysing Balance Loss in VR Interaction with HMDs

Analysing Balance Loss in VR Interaction with HMDs

Interaction Design in Virtual Reality Game Using Arduino Sensors

Transient visual perturbations boost short-term balance learning in virtual reality by modulating electrocortical activity

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