We assess the effectiveness of attention guidance cues in a virtual field trip in high schools with real students. Three eye-tracked visual cues, previously considered in lab settings for their ability to guide and re...
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ISBN:
(纸本)9798350374490;9798350374506
We assess the effectiveness of attention guidance cues in a virtual field trip in high schools with real students. Three eye-tracked visual cues, previously considered in lab settings for their ability to guide and restore attention, are compared against a baseline of no cue in a VR field trip of a virtual solar plant. Such cues are commonly studied in abstract lab tasks and not in the context of maintaining attention in an educational environment or in such real-world deployments. Results suggest a difference in effectiveness between lab subjects and high school students.
This study examined whether a person's spontaneous postural sway before, and their head-movements during, exposure to virtual reality (VR) predicts their experiences of cybersickness. We compared the stability of ...
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ISBN:
(纸本)9798350374490;9798350374506
This study examined whether a person's spontaneous postural sway before, and their head-movements during, exposure to virtual reality (VR) predicts their experiences of cybersickness. We compared the stability of head and body movements made by 50 HMD users to the sickness they experienced during VR simulations with different amounts of display lag. Consistent with Postural Instability Theory, we found that: 1) naturally unstable participants were significantly more likely to become sick during these laggy simulations;and 2) the severity of this sickness depended on the spatial magnitude and the temporal dynamics of their head movements during active HMD VR.
We made a hypothesis that appropriate delay in operational system would improve its operational performance from some reviews and papers. As an experimental result, performance was improved in slight delay. The sensor...
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ISBN:
(纸本)9798350374490;9798350374506
We made a hypothesis that appropriate delay in operational system would improve its operational performance from some reviews and papers. As an experimental result, performance was improved in slight delay. The sensory evaluation also confirmed that the subject felt support even though there was no actual force support. Another experiment confirmed that depth movement restriction, and the move ratio of the virtual tool on a screen to the input device affected to improve performance. We also investigated that difference of task conditions, i.e. moving task distance and target area size, affect to performance improvement.
The biomechanically complex hand is crucial to a person's daily life and enables grasping, manipulating objects, and many more tasks. Impairments have a strong impact on a person's independence, quality of lif...
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ISBN:
(纸本)9798350374490;9798350374506
The biomechanically complex hand is crucial to a person's daily life and enables grasping, manipulating objects, and many more tasks. Impairments have a strong impact on a person's independence, quality of life, and overall well-being. Physiotherapy plays a crucial role after surgical interventions. Given the shortage of personnel and therapy session availability, enabling support and monitoring during the absence of the physiotherapist is a key future direction of medical care. Virtual reality (VR) has been shown to be able to support the rehabilitation of hand motor function. However, an individualized and motivating rehabilitation process is crucial to support the affected person until full recovery of the hand function. To address this, we present a prototype of a VR rehabilitation system that allows for the medical expert to a) control exercise planning and to b) receive a detailed report on the patients success. Our rehabilitation assistant is based on a gamified approach that targets the execution of crucial gestures for exercise.
We introduce STREAMSPACE as a framework for exploring screen-based collaborative MR experiences, focusing on the streaming, integration, and layout of screen content in MR environments. Utilizing Unity and Ubiq, this ...
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ISBN:
(纸本)9798350374490;9798350374506
We introduce STREAMSPACE as a framework for exploring screen-based collaborative MR experiences, focusing on the streaming, integration, and layout of screen content in MR environments. Utilizing Unity and Ubiq, this framework allows users to engage with, reposition, and resize uniquely identified screens within a user-centric virtual space. Building on Ubiq's WebRTC capabilities, our framework enables real-time streaming and transformations through peer-to-peer communication. Key features of STREAMSPACE include distributed streaming, automated screen layout, and flexible privacy settings for virtual screens. Introducing STREAMSPACE, we aim to provide a foundational basis for research on screen-based collaborative MR applications.
The COVID-19 pandemic has been a period where time-series of disease statistics, such as the number of cases or vaccinations, have been intensively used by public health professionals to estimate how their region comp...
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ISBN:
(纸本)9798350330267
The COVID-19 pandemic has been a period where time-series of disease statistics, such as the number of cases or vaccinations, have been intensively used by public health professionals to estimate how their region compares to others and estimate what future could look like at home. Conventional visualizations are often limited in terms of advanced comparative features and in supporting forecasting systematically. This paper presents a visual analytics approach to support data-driven prediction based on a search-analyze-predict process comprising a multi-metric, multi-criteria time-series search method and a data-driven prediction technique. These are supported by a visualization framework for the comprehensive comparison of multiple time-series. We inform the design of our approach by getting iterative feedback from public health experts globally, and evaluate it both quantitatively and qualitatively.
Users often begin exploratory visual analysis (EVA) without clear analysis goals but iteratively refine them as they learn more about their data. As an essential step in data science, researchers want to aid EVA by de...
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Patients are expected to manage their chronic conditions, but very few exercise regularly in addition to taking their medications. Therefore, we developed a 3-minute HMD VR program to educate patients about the import...
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ISBN:
(纸本)9798350374490;9798350374506
Patients are expected to manage their chronic conditions, but very few exercise regularly in addition to taking their medications. Therefore, we developed a 3-minute HMD VR program to educate patients about the importance of exercise. The control group (n = 30) received usual care, while the experimental group (n= 30) experienced virtual reality and assessed SSQ and exercise intention. No patients experienced VR sickness and the experimental group showed a statistically significant higher intention to exercise for diabetes management. Older adults found the VR experience exciting and novel. For diabetic foot experience, color change is enough to motivate them.
Generating content for virtual reality takes effort and expanding how content can be generated has the potential to increase participation by a wider range of users well outside virtual reality researchers and program...
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ISBN:
(纸本)9798350374490;9798350374506
Generating content for virtual reality takes effort and expanding how content can be generated has the potential to increase participation by a wider range of users well outside virtual reality researchers and programmers. This work explores some current content acquisition and generation techniques for replicating real world 3D scenes and objects to better understand the practical use and application of these techniques. The techniques explored focus on the recent emergence of radiance field-based methods and their potential to replace previous scene/object-generating photogrammetry techniques.
Cybersickness is a widespread problem for many users of Virtual Reality systems. Changes in pupil diameter have been suggested as potential physiological correlates of cybersickness, but the relationship remains vague...
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ISBN:
(纸本)9798350374490;9798350374506
Cybersickness is a widespread problem for many users of Virtual Reality systems. Changes in pupil diameter have been suggested as potential physiological correlates of cybersickness, but the relationship remains vague. Here, we further investigated how pupil diameter changes in relation to cybersickness by engaging participants in a passive locomotion through an outer-space environment. Participants who experienced sickness showed greater variance in pupil diameter compared to non-sick participants, whereas average pupil diameter did not differ. Our results suggest that irregular pupillary rhythms may be a potential correlate of cybersickness, which could be used to objectively identify cybersickness.
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