Virtual Augmented Reality Research Articles

Retracted: Virtual Digital Communication Feature Fusion Based on Virtual Augmented Reality

Retracted: Virtual Digital Communication Feature Fusion Based on Virtual Augmented Reality

Assessment of the viability of integrating virtual reality programs in practical tests for the Korean Radiological Technologists Licensing Examination: a survey study

The objective of this study was to assess the feasibility of incorporating virtual reality/augmented reality (VR/AR) programs into practical tests administered as part of the Korean Radiological Technologists Licensing Examination (KRTLE). This evaluation is grounded in a comprehensive survey that targeted enrolled students in departments of radiology across the nation. In total, 682 students from radiology departments across the nation were participants in the survey. An online survey platform was used, and the questionnaire was structured into 5 distinct sections and 27 questions. A frequency analysis for each section of the survey was conducted using IBM SPSS ver. 27.0. Direct or indirect exposure to VR/AR content was reported by 67.7% of all respondents. Furthermore, 55.4% of the respondents expressed that VR/AR could be integrated into their classes, which signified a widespread acknowledgment of VR among the students. With regards to the integration of a VR/AR or mixed reality program into the practical tests for purposes of the KRTLE, a substantial amount of the respondents (57.3%) exhibited a positive inclination and recommended its introduction. The application of VR/AR programs within practical tests of the KRTLE will be used as an alternative for evaluating clinical examination procedures and validating job skills.

Virtual Pedagogy: Scenarios for Future Learning with VR and AR Technologies

Modern education and science are at the stage of active practical implementation of digital technologies aimed at improving the efficiency of the educational process. The fourth wave of industrial development offers digital and technological solutions that enhance the practical learning experience through the use of immersive technologies such as augmented and virtual reality. The purpose of this study is to assess the possibilities of using currently available Virtual Reality / Augmented Reality (VR/AR) technologies and to develop specific recommendations for improving the quality of the educational process, as well as to explore promising areas for the development of immersive education. The study used methods of criterion-based selection of the optimal tool for creating educational virtual content. This selection was made among the research nomenclature of currently available relevant digital platforms based on the calculation of specialised metrics for assessing the focal technical and technological capabilities of the studied cloud resources. Based on the results of this study, the optimal and currently available means of creating educational content has been identified, which provides users with the opportunity to use VR/AR technologies without acquiring special skills and abilities. Pedagogical scenarios that have already been immersed and can be adapted to different sectors of education are proposed. Probable vectors for the further development of educational VR/AR technologies are considered, and a hypothesis is formed about the need to use real experience in implementing immersive and virtualised educational processes to adjust and moderate the future development of global education in the context of the and Education 4.0 paradigms. The results of this study indicate the dynamic development of the field of immersive and virtualised educational space, formulate practical recommendations for using currently available tools for creating virtual educational content, and also point to the problem of low scientific support for the development of the studied field, which requires a systematic approach and a generally accepted strategy in the transformational processes of civilisational evolution. According to the results of the study, it is recommended to actively introduce available cloud-based platforms for creating virtual educational content into educational processes, as well as to use a nomenclature of pedagogical scenarios that have already been adapted and transformed to the use of VR/AR technologies in educational processes. It is necessary to constantly monitor and moderate the processes of involving immersive and virtualisation tools in the educational space.

Multi-dimensional stereo face reconstruction for psychological assistant diagnosis in medical meta-universe

Virtual reality/augmented reality (VR/AR) technology is very important for meta-cosmic medicine. It is the technical link between the material world and the virtual world. The realization of face-to-face psychological diagnosis with three-dimensional holography is a difficult problem in meta-cosmic medicine. Because psychological diagnosis needs to observe rapidly changing microexpressions, it is difficult to capture them. At present, most of the research is based on two dimensions, which cannot meet the real-time reconstruction requirements of meta-universe medicine. To solve these problems, this paper introduces a 3D facial reconstruction algorithm composed of multiresolution feature fusion and attention mechanisms. It can be used for psychological assistant diagnosis of meta-cosmic medicine. First, face alignment and 3D coordinate construction of the feature point cloud are carried out through a 3D convolution coding network. After that, multiresolution cost convolution is used to extract and match the color, facial bones, and depth features of texture images. Finally, the transposed three-dimensional convolution is used to decode and output. To achieve the real-time reconstruction of psychotherapy, we designed a three-dimensional channel attention mechanism module for acceleration. This makes this method suitable for the construction of virtual doctors and virtual patients in the virtual platform of the medical universe of psychological medicine and can also complete the construction of the virtual teaching platform of the medical universe.

Multi-layer Scene Representation from Composed Focal Stacks.

Multi-layer images are a powerful scene representation for high-performance rendering in virtual/augmented reality (VR/AR). The major approach to generate such images is to use a deep neural network trained to encode colors and alpha values of depth certainty on each layer using registered multi-view images. A typical network is aimed at using a limited number of nearest views. Therefore, local noises in input images from a user-navigated camera deteriorate the final rendering quality and interfere with coherency over view transitions. We propose to use a focal stack composed of multi-view inputs to diminish such noises. We also provide theoretical analysis for ideal focal stacks to generate multi-layer images. Our results demonstrate the advantages of using focal stacks in coherent rendering, memory footprint, and AR-supported data capturing. We also show three applications of imaging for VR.

Retracted: Building English Audio-Visual and Oral Mobile Teaching System Based on Virtual Augmented Reality Technology

Retracted: Building English Audio-Visual and Oral Mobile Teaching System Based on Virtual Augmented Reality Technology

Experience in Developing and Implementing Practical Skills Training Programs Using Combined Simulation Techniques on Living Tissues

The paper presents our own experience in organizing and conducting training courses for doctors of surgical specialties using living tissue technology (Wet-Lab) and augmented virtual reality. A feature of these courses is the successful combination of Dry-Lab and Wet-Lab simulation techniques, which allows for “step-by-step” skill training with its consolidation during operations on animals in an experimental operating room.

Augmented and Controlled Virtual Reality as Ways to Train Obstetricians and Gynecologists on the Basis of a Simulation Center

The authors present their own experience of using high-tech training equipment with elements of augmented virtual reality in the educational process of obstetricians and gynecologists. Based on this experience, a controlled virtual reality complex has been developed, where for the first time students have the opportunity to actively influence the proposed scenario, eliminate possible errors in the implementation of the algorithm of necessary actions, and come as close as possible to the ideal conduct of medical manipulations. This complex also opens up wide prospects for its use for medical purposes.

A full high‐definition quantum dot light‐emitting diode‐on‐silicon microdisplay

AbstractWe report a 0.39‐in. quantum dot light‐emitting diode (QLED) microdisplay with full high‐definition (FHD, 1920 × 1080) resolution by integrating a red top‐emitting QLED on a complementary metal–oxide–semiconductor (CMOS) backplane. By optimizing the microcavity structure and constructing a suitable energy‐level structure for the QLED devices, the performance of the large‐area (4.9 × 8.7 mm2) top‐emitting device with normal structure reached 13,936 cd/m2 of brightness at 5‐V bias with 13.3% external quantum efficiency (EQE). Notably, the optimal device showed a low turn‐on voltage of 1.7 V, which matched well the voltage output of the CMOS backplane. Our work demonstrates the great promise of QLED microdisplays for applications in head‐mounted augmented reality/virtual reality (AR/VR).

Sosialisasi Manfaat Teknologi Virtual Augmented dan Virtual Reality Bagi Peningkatan Bidang Manajemen Pendidikan

This Community Service (PKM) aims to advance information technology so that later students who are studying at SMKN 3 Bengkulu Tengah will get additional insight into computer science in the field of information technology such as Virtual Reality and Virtual Augmented which in everyday terms do not let many students gaptek (stuttering technology) in order to play a more role in world competition outside the school walls. The benefits of PKM activities are aimed at SMKN 3 Bengkulu Tengah students who are expected to be able to utilize and apply them to other fields of science related to the science they are studying. The results and conclusions of this PKM are that this PKM activity has educated and provided knowledge of Virtual Augmented and Virtual Reality Technology and its role in the world of education. So that students of SMKN 3 Bengkulu Tengah can better prepare themselves to become a creative, innovative and inspiring young generation in the face of technological advances.

Enhancing Agricultural Production with Digital Technologies: A Review

The purpose of this study is to investigate the transformational influence of technological advances in the development of agricultural practises in India, revealing how they might improve production and sustainability. It examines a variety of innovations, including precision farming robots, artificial intelligence (AI), the Internet of Things (IoT), blockchain, and virtual reality/augmented reality (VR/AR). Agricultural precision maximises resource use while reducing environmental effect. Robotics makes automatic planting, harvesting, and weeding possible, increasing efficiency and decreasing the need for physical labour. The report backs up these ideas with detailed case studies that demonstrate actual effects on the ground. Nevertheless, it also carefully addresses the numerous problems that are impeding mainstream use of these technologies. The study concludes that while digital technologies have the potential to revolutionise agricultural practises, they must be addressed in order to realise their full potential.

Machine-Learning Methods for Speech and Handwriting Detection Using Neural Signals: A Review

Brain–Computer Interfaces (BCIs) have become increasingly popular in recent years due to their potential applications in diverse fields, ranging from the medical sector (people with motor and/or communication disabilities), cognitive training, gaming, and Augmented Reality/Virtual Reality (AR/VR), among other areas. BCI which can decode and recognize neural signals involved in speech and handwriting has the potential to greatly assist individuals with severe motor impairments in their communication and interaction needs. Innovative and cutting-edge advancements in this field have the potential to develop a highly accessible and interactive communication platform for these people. The purpose of this review paper is to analyze the existing research on handwriting and speech recognition from neural signals. So that the new researchers who are interested in this field can gain thorough knowledge in this research area. The current research on neural signal-based recognition of handwriting and speech has been categorized into two main types: invasive and non-invasive studies. We have examined the latest papers on converting speech-activity-based neural signals and handwriting-activity-based neural signals into text data. The methods of extracting data from the brain have also been discussed in this review. Additionally, this review includes a brief summary of the datasets, preprocessing techniques, and methods used in these studies, which were published between 2014 and 2022. This review aims to provide a comprehensive summary of the methodologies used in the current literature on neural signal-based recognition of handwriting and speech. In essence, this article is intended to serve as a valuable resource for future researchers who wish to investigate neural signal-based machine-learning methods in their work.

Developing Contents of Practical Training for Decontamination of Radiation-contaminated Patients Using VR Training Simulator

Introduction:The KIRAMS establishes radiological emergency institutions and provides training for emergency medical agents. However, because of the uniqueness of radioactive accidents, the current training program has a limitation in the realistic description. Therefore, training programs based on virtual augmented reality technology that can describe radiological emergencies are required. In this study, the contents of practical training for decontamination of radiation-contaminated patients as a part of radiation disaster prevention personnel training using VR simulator are developed.Method:Environments and devices required for treating patients with complex radiation damage are made visible using VR simulator to enable practical training of techniques and practices that will be required in actual radiation emergencies or training. The VR decontamination training content uses three Point tracking techniques to calculate the location of the head-mounted display device and the hand to visualize the movements. Additionally, Universal Render Pipeline technology was used to develop realistic visualizations of situations.Results:In this study, VR decontamination treatment practice content was developed, which allows a single trainee to go through the entire treatment process of treating radiation-contaminated patients. The radiation-exposed patient’s treatment process is composed of nine subprocesses, including wearing personal protective equipment, obtaining samples from openings, taking measurements, cleaning contaminated injuries, and so on. A checklist user interface was used to enable trainees to check their progress. The trainee can practice patient treatment with a controller while using VR decontamination treatment content. Additional functions such as narration, sound effects, animation, and so on were added to high educational effects.Conclusion:In this study, VR decontamination treatment content was developed using VR training simulator to practice the treatment of radiation-contaminated patients. The results of this study will contribute to fostering the workforce response to radiation through efficient education using a VR training simulator, as well as promoting the use of radiation safety regulations.

Augmented virtual reality and 360 spatial visualization for supporting user-engaged design

Abstract This paper discusses an approach to augmented virtual reality (AVR) and 360-degree spatial visualization. The approach involves locating stereoscopic three-dimensional virtual objects into a real off-site panorama, supporting spatial remodel design decision-making through realistic comparisons. Previous studies have shown that in the design process, end-user engagement promotes the quality and satisfaction of design solutions. Immersive media such as virtual reality (VR) and augmented reality (AR) have increasingly been used as communication tools for user engagement in design, as they provide intuitive and realistic user experiences, particularly in comparing design plans. However, the dichotomous affordance of current VR and AR devices is limited in satisfying both the sense of realism and immersion that are essential for user engagement. To overcome this shortcoming, we propose an AVR-based design visualization approach that integrates the advantages of both media technologies to provide a high sense of realism and immersion off-site, responding to location and environmental stimuli, such as lighting, material, and other factors. To achieve this goal, we used 360-degree panorama data of the target space as a design visualization background, with content immersion experienced through VR hardware. Additionally, we developed software to demonstrate the actual use of the AVR-based approach, and various visualization-purposed file formats can be exported automatically using this software. The software supports the authoring of 360-degree spatial visualization videos for realistic design comparisons, which can be easily accessed by end-users using a head-mounted display or smartphone, even in real-time. We performed a demonstration of this approach using an actual remodel design project for the university library lobby, and this paper shows the usability and applicability of the AVR-based approach for user engagement.

Augmented Virtual Reality in Vestibular Assessment: A Dynamic Gait Application

Introduction: Dizziness is a common complaint affecting up to 23% of the world population. Diagnosis is of utmost importance and routinely involves several tests to be performed in specialized centers. The advent of a new generation of technical devices would make envision their use for a valid objective vestibular assessment. Microsoft HoloLens 2 (HL2) mixed reality headset has the potential to be a valuable wearable technology that provides interactive digital stimuli and inertial measurement units (IMUs) to objectively quantify the movements of the user in response to various exercises. The aim of this study was to validate the integration of HoloLens with traditional methods used to analyze the vestibular function in order to obtain precise diagnostic values. Methods: Twenty-six healthy adults completed the Dynamic Gait Index tests both with a traditional evaluation and while wearing HL2 headset, thus allowing to collect kinematic data of the patients’ head and eyes. The subjects had to perform 8 different tasks, and the scores were independently assigned by two otolaryngology specialists. Results: The maximum of the mean position of the walking axis of the subjects was found in the second task (−0.14 ± 0.23 m), while the maximum value of the standard deviation of the walking axis was found in the fifth task (−0.12 ± 0.27 m). Overall, positive results were obtained in regard to the validity of the HL2 use to analyze kinematic features. Conclusion: The accurate quantification of gait, movement along the walking axis, and deviation from the normality using HL2 provide an initial evidence for its useful adoption as a valuable tool in gait and mobility assessment.

Virtual and Augmented Reality in Post-stroke Rehabilitation: A Narrative Review.

Virtual reality (VR) and augmented reality (AR) are noble adjunctive technologies currently being studied for the neuro-rehabilitation of post-stroke patients, potentially enhancing conventional therapy. We explored the literature to find if VR/AR improves neuroplasticity in stroke rehabilitation for a better quality of life. This modality can lay the foundation for telerehabilitation services in remote areas. We analyzed four databases, namely Cochrane Library, PubMed, Google Scholar, and Science Direct, by searching the following keywords: ("Stroke Rehabilitation" [Majr]) AND ("Augmented Reality" [Majr]), Virtual Augmented Reality in Stroke Rehabilitation. All the available open articles were reviewed and outlined. The studies conclude that VR/AR can help in early rehabilitation and yield better results in post-stroke patients in adjunct to conventional therapy. However, due to the limited research on this subject, we cannot conclude that this information is absolute. Moreover, VR/AR was seldom customized according to the needs of stroke survivors, which would have given us the full extent of its application. Around the world, stroke survivors are being studied to verify the accessibility and practicality of these innovative technologies. Observations conclude that further exploration of the extent of the implementations and efficacy of VR and AR, combined with conventional rehabilitation, is fundamental.

Principals’ Integration of ICT in Curriculum Implementation for Sustainable Development

The integration of ICT in secondary school curriculum has been widely advocated as much needed in the 21st century skills to improve the standard of education. However, this can be promoted through acquiring ICT skills in several ways such as software development, programming, networking, web design, cloud computing, Augmented Virtual Reality (AVR), Internet-of- Things (IoT), and artificial intelligence (AI) are effectively leading tools and ICT environments to help worldwide leadership, facilitators, and learners with quick, effective, and healthy interaction towards a sustainable development. This study investigated the principals’ integration of ICT in curriculum implementation for sustainable development. The respondents of the study consisted of 263 principals in public secondary schools in Anambra State. The study used descriptive survey design. The findings of the study revealed among others that lack of modern ICT facilities, poor internet network, poor maintenance culture, budgetary constrain of ICT personnel are the challenges. Based on the findings, it was recommended among others that Government should equip schools with ICT facilities, provides fund for training of ICT personnel for sustainable development.

A novel machining approach of freeform multi-mirror mold via normal swing cutting

Freeform optical elements have found wide applications in the fields of virtual /augmented reality (VR/AR), aerospace and biomedical engineering. Machining complex freeform surfaces on Nip mold with traditional Slow/Fast tool servo (STS/FTS) is difficult due to its large slope angles and multi-mirror structure. We developed a novel normal swing cutting method to solve these issues. The three translational motions were synchronized with the rotation of B axis to generate a normal swing cutting path for fabrication of freeform multi-mirror mold. The mathematical model of tool path for the normal swing cutting was established. A trial cutting process flow of spherical copper columns was carried out where the main error sources were identified and compensated before machining the freeform surface mold and the profile error of spherical copper columns after compensation machining was predicted accurately. To validate the effectiveness of the presented novel cutting method and trial cutting compensation, cutting experiments of a multi-mirror mold with freeform surface were conducted. As a result, the PV-values of the S1 and S2 freeform surface with error compensation machining were improved to 1.1 μm and 1.0 μm based on the on-machine measurement. The results were basically consistent with the surface errors obtained from off-machine measurements, which were 1.2 μm and 1.03 μm respectively. The surface roughness of three local areas was less than Sa 9 nm. This confirms the effectiveness of the developed novel machining methods for the complex freeform surface. Prospects of the new machining method were discussed to provide guidance to the future research.

54.3: A Hybrid Neural Network Approach for Phase Optimization of Liquid Crystal Lens in Three‐dimensional Display

Liquid crystal(LC) lenses are widely applied in three‐dimensional(3D) display, augmented reality/virtual reality (AR/VR) and machine vision system due to the advantages of electrical controllability and high flexibility. However, LC lenticular display technology is limited by the material characteristics of LC materials, because it is difficult to overcome the shortcomings of low resolution and high crosstalk at the same time. In this paper, a phase distribution optimization scheme based on the neural network is proposed, which may realizes the complex phase distribution of LC lens through machine learning and improve the optical properties of lenticular 3D display technology.lujg@sjtu.edu.cn

Teaching and Learning in the Metaverse World: The Future of New-Gen Education

Abstract :The change in the education system to meet the needs of the students of every generation is inevitable. The education system is transforming towards technology catering to the requirements of Generation Y and Generation Alpha. The online teaching practice has many issues and concerns among students, like lack of interaction, inactiveness, incuriosity, and ineffectiveness. The innovation in technology by incorporating Virtual and Augmented Reality (VAR), Artificial Intelligence (AI), holograms, virtual laboratories, blockchain technology, and the Internet of Things (IoT) can make it more effective. The metaverse is a web of threedimensional virtual environments centered on socializing, which utilizes the above-said technologies. Metaverse delivers an immersive learning experience for the students and increases class involvement, making learning more exciting and active. Its expansion has been aided by superior information technology enterprises such as Meta Platforms, Epic Games and Microsoft. Metaverse has also raised concerns like privacy, security, societal and psychological issues among users. Furtherresearch into the application of metaverse application in education can shed more light on it as we need to prepare the educators and learners of the near future. Keywords : Metaverse, Generation Alpha, Virtual Augmented Reality, Online education, Roblox.