Web5VR

Extended-Reality Technologies: An Overview of Emerging Applications in Medical Education and Clinical Care.

Visual fatigue induced by watching virtual reality device and the effect of anisometropia

Smart manufacturing revolutionizes industry by integrating physical and cyber worlds, creating a robust cyberinfrastructure that collects, interprets, and acts on factory data. This transformation underscores the crucial role of data in adaptive manufacturing processes. Integrating Virtual Reality (VR) with smart manufacturing further enhances decision-making by immersing users in virtual environments, enabling stakeholders to visualize and interact with complex processes. However, this shift necessitates stringent data security, as breaches can disrupt operations and compromise sensitive information. To mitigate this risk, blockchain technology is employed, providing a secure data repository that prevents unauthorized access. The convergence of VR and blockchain helps manufacturers navigate production complexities using safeguarded data. This research proposes a blockchain-based data visualization framework integrated with VR to gain manufacturing insights. Implemented at the Future Factories Lab at the University of South Carolina, the system enhances understanding, analysis, and decision-making by immersing users in a VR environment that presents manufacturing data stored on blockchain in an interactive form. Hyperledger Fabric establishes a blockchain network that records data from sensors deployed on controllers and actuators. When anomalies occur, relevant data is securely recorded on the blockchain. Data is accessed through “GET” API requests. A VR application, developed using the Unity game engine, visualizes the retrieved data through the Meta Quest 3 VR device. The application includes scripts to query blockchain data and convert JSON objects to text for VR visualization. This system leverages blockchain and VR to provide secure, immersive insights, enhancing efficiency, sustainability, and resilience in the modern manufacturing workplace.

A software generated three dimensional simulated image or an environment which apparently allows for physical interaction is virtual reality. In virtual reality environment, an individual interacts with the help of specialized input and output devices. Use of virtual reality in healthcare settings is widespread. It includes facilitation in medical education i.e. surgical training, therapeutic effects i.e. pain management and rehabilitation, and lastly patient engagement with regards to planning personalized medical and surgical treatment in addition to remote access for patients. Likewise in ophthalmology, virtual reality has an enormous impact in facilitation and speeding up surgical training of residents in addition to screening and diagnosis of some macular disorders. A three dimensional monitor (LG CINEMA 3D monitor, 23MD53D, Seoul, South Korea) is being used for diagnosis and assessment of metamorphopsia. Polarizing glasses are used to create a stereoscopic effect to each eye followed by six picture test which included three pictures each for vertical and horizontal metamorphopsia.

Virtual Reality (VR) applications are now widely applied in various scenarios and areas, such as tourism, education, manufacturing, and digital entertainment. Although there many different VR devices and platforms, e.g., HTC Vive, Oculus Rift and PS VR, the mobile VR based on smartphones and low-priced VR goggles are still the most popular VR platform for VR games and videos. However, many fundamental interaction techniques in mobile VR environment are still quite challenging. In this paper, we design and evaluate the usability of 3D selection technique in mobile VR environments. We evaluate the user performance on a selection task with different navigation speed settings and operation modes, and we then proposed a selection task performance model for 3D user interfaces in mobile VR environments based on Fitts' Law. The model indicates that the target distance from the 3D viewpoint has the most significant influence on selection time.

Objectives: This paper presents an up-to-date overview of research performed in the Virtual Reality (VR) environment ranging from definitions, its presence in the various fields, and existing market players and their projects in the VR technology. Further an attempt is made to gain an insight on the psychological mechanism underlying experience in using VR device. https:// www.facebook.com/ - policies companies and their findings for different areas of interest. Methods: Our literature survey is based on the research articles, analysis of the projects of various companies and their findings for different areas of interest. Findings: In our literature survey we observed that the recent advances in virtual reality enabling technologies have led to variety of virtual devices that facilitate people to interact with the digital world. In fact in the past two decades researchers have tried to integrate reality and VR in the form of intuitive computer interface. Application: This has led to variety of potential benefits of VR in many applications such as News, Healthcare, Entertainment, Tourism, Military and Defence etc. However despite the extensive research efforts in creating virtual system environments it is yet to become apparent in normal daily life. Keywords: Risk, Virtual Reality (VR), VR Platforms, VR Market Players, VR Tools

The personalization of user experiences through recommendation systems has been extensively explored in Internet applications, but this has yet to be fully addressed in Virtual Reality (VR) environments. The complexity of managing geometric 3D data, computational load, and natural interactions poses significant challenges in real-time adaptation in these immersive experiences. However, tailoring VR environments to individual user needs and interests holds promise for enhancing user experiences. In this paper, we present Virtual Reality Environment Adaptation through Recommendations (VR-EAR), a framework designed to address this challenge. VR-EAR employs customizable object metadata and a hybrid recommendation system modeling implicit user feedback in VR environments. We utilize VR optimization techniques to ensure efficient performance. To evaluate our framework, we designed a virtual store where product locations dynamically adjust based on user interactions. Our results demonstrate the effectiveness of VR-EAR in adapting and personalizing VR environments in real time. domains.

Virtual reality (VR) is a technology which is often regarded as a natural extension to 3D computer graphics with advanced input and output devices. One of the benefits that education reaps from VR is the ability to visualize, simulate and interact with virtual objects. This ability allows the student to have the trial and error session before practicing it on real things. The integration of this new technology with software systems for education, design and manufacturing will provide a new boost to the field of computer-aided design. One aspect of design and manufacturing which may be significantly affected by VR is design for assembly. The development of a realistic virtual assembly environment is challenging because of the complexity of the physical processes and the limitation of available VR technology. Many research activities in this domain primarily focused on particular aspects of the assembly task such as the feasibility of assembly operations in terms of interference between the manipulated parts. The virtual assembly environment proposed in this research is on mechanical part assembly of Arrick Robot.

The use of virtual reality (VR) shows promising results in improving the emotional wellbeing of cancer patients, reducing anxiety, depression, and pain symptoms. No data exist concerning the use of VR in cancer patients assisted at home. The ANT Foundation decided to conduct a pilot study to test the use of VR in cancer patients assisted at home. Fifty-eight ANT patients were randomized and assigned to a control group that didn't use VR devices and to an experimental group that used them. The primary objective of the pilot study was to determine whether VR device could be a viable instrument in homecare patients. Furthermore, the aim of the study was to discover if VR could have beneficial effects on patients' quality of life as well as discover which kind of videos were more effective. The innovative aspect of this study was to test the use of VR directly at home of patients, proposing a use of VR that is compatible with the needs and the daily rhythms of families, and investigating its effectiveness through appropriate validated psychometric questionnaires and semi-structured interviews.

Virtual Reality (VR) has expanded from the training and high-end entertainment world into the homes of everyday users through mobile head mounted displays (HMDs). Currently, several different interaction methods for mobile VR HMDs exist, including remotes, external controllers, motion controllers, touch, and free form hand tracking. The goal of this study was to evaluate the impact that these interaction methods have on specifically mobile VR HMD user experience, including performance, user preference, and enjoyment. It was hypothesized that interaction methods would vary significantly in enjoyment, preference, and performance as many factors such as ease of use and familiarity can influence these factors. To evaluate the interaction methods, participants performed trials of a matching task utilizing menus in a VR environment in which the participants selected the features of an object (e.g., shape, color, pattern) from a menu to the right of the object. The Leap Motion had usability issues that impacted it’s performance and enjoyment scores resulting in it being the poorest performer of the group. Overall the gamepad was most preferred and performed the best due to its ease of use and familiarity, but the touchpad and leap motion offered immersive aspects. These results highlight the importance of ease of use in interaction methods and the impact it has on overall user experience. This paper will discuss these results and implications for design of interaction methods and associated VR HMD controllers.

Controlling characters in a virtual reality (VR) environment can lead to the interiorization of their body dimensions by the recipients. The possible preservation of these distortions in their psyche will indicate a high degree of psychological impact of a VR on a person and the potential danger of developing depersonalization of the recipients and their dependence on such stimulation. The study of the stability of these distortions is necessary in the context of ensuring the safety of the impact of VR environments on the human psyche. The main focus of the study is on the perception distortions of human body dimensions, as they are sensed by people immersed in a VR environment, and their dynamics depending on the number of immersions. The impact of the virtual reality environment was simulated using the Freedom Locomotion VR application. One virtual reality immersion session took 15 minutes. To obtain psychometric indicators of the subjects perception of their own body dimensions, the technique Measurements according to M. Feldenkrais was used. All the participants (N = 45, three experimental groups) underwent a mandatory preliminary measurement using this technique (several hours before exposure) and a final measurement (one day after the last exposure). At the same time, the results of preliminary measurements were taken as indicators of the subjects habitual perception of their own body dimensions and were considered in each data processing as a comparison group. Free movement in a VR environment leads to distortions in the subjects perception of their own body dimensions. In all the experimental groups, there was a tendency to exaggerate body dimensions immediately after immersions, which indicates the qualitative similarity of these distortions. The effect of repetitive immersion in a VR environment on the perception of body dimensions is that it increases awareness in perceiving body parts that are least active at the time of immersion. Controlling an anthropomorphic character in a VR leads to an increase in the subjective significance of the recipients own body perception and an increased concentration of attention on the parameters least involved in immersion. The results of the study show that an increased level of awareness in perceiving their own bodies is characteristic of the subjects who have experience of repetitive immersions in a VR environment in the guise of an anthropomorphic character. Controlling a bodily projection in a VR headset does not cause its long-term interiorization, but has a positive effect on the formation of personal corporeality.

Recent development in artificial neural networks has led to an increase in performance, but also in complexity and size. This poses a significant challenge for the exploration and analysis of the spatial structure and temporal behaviour of such networks. Several projects for the 3D visualisation of neural networks exist, but they focus largely on the exploration of the spatial structure alone, and are using standard 2D screens as output and mouse and keyboard as input devices. In this article, we present NeuVis, a framework for an intuitive and immersive 3D visualisation of spiking neural networks in virtual reality, allowing for a larger variety of input and output devices. We apply NeuVis to NeuCube, a 3-dimensional spiking neural network learning framework, significantly improving the user’s abilities to explore, analyse, and also debug the network. Finally, we discuss further venues of development and alternative render methods that are currently under development and will increase the visual accuracy and realism of the visualisation, as well as further extending its analysis and exploration capabilities.

Virtual and Augmented reality has established itself in many sectors including education. The virtual is progressively entering the classrooms. MOOCs (Massive Open Online Course), those online interactive lessons available for all, are useful tools to complete the traditional school system. There are also more and more e-learning platforms that propose online lessons and follow-up for any student. Immersive contents appear as playful alternatives to traditional lectures. But, the integration of VR/AR equipment in classrooms raises questions. What is the place of augmented and virtual reality in education and teaching? In order to be able to answer this important question, our article takes place as the result of a literature review on the field of virtual and augmented reality in education. Our objective, first of all, to deepen our knowledge domain in order to provide the necessary answers to « the question », and, secondly, to identify principles that can guide the design of educational artefacts in virtual and augmented reality. The methodology of the literature review is based on the EPPI method (Evidence for Policy and Practice Information and Co-ordinating). Results will be presented by themes such as motivation, immersion, collaboration, and design.

Virtual and Augmented reality has established itself in many sectors including education. The virtual is progressively entering the classrooms. MOOCs (Massive Open Online Course), those online interactive lessons available for all, are useful tools to complete the traditional school system. There are also more and more e-learning platforms that propose online lessons and follow-up for any student. Immersive contents appear as playful alternatives to traditional lectures. However, the integration of VR/AR equipment in classrooms raises questions. What place takes the augmented (AR) and virtual reality (VR) in the modern educational and teaching system? In order to be able to answer this important question, our article takes place as the result of a literature review on the field of virtual and augmented reality in education. Our objective, first of all, to deepen our knowledge domain in order to provide the necessary answers to « the main question », and, secondly, to identify principles that can guide the design of educational artifacts in virtual and augmented reality. The methodology of the literature review is based on the EPPI method (Evidence for Policy and Practice Information and Co-ordinating). Results will be presented by themes such as motivation, immersion, collaboration, and design.

Virtual reality is an immersive experience that has been gaining acceptance in the field of medicine as a tool for reducing patient anxiety. We recently observed the effectiveness of this technology in wide-awake local anaesthesia no tourniquet (WALANT) surgeries. Here we report two cases of patients who used a virtual reality device during hand surgery using the WALANT technique. Both patients reported that the use of VR technology reduced their anxiety and improved their overall experience during surgery. This case report highlights the novel use of virtual reality during hand surgeries where the patients were awake. Based on these two cases, virtual reality may have the potential to reduce anxiety during the perioperative period and enhance a patient's overall experience in WALANT surgeries.