Background:Submarine personnel often experience insomnia and reduced psychological resilience due to extended deployments in confined,high-stress environments.Effective non-pharmacological interventions are needed to ...Background:Submarine personnel often experience insomnia and reduced psychological resilience due to extended deployments in confined,high-stress environments.Effective non-pharmacological interventions are needed to improve sleep quality and resilience in this population.This study aimed to investigate the effect of virtual reality(VR)combined with forest therapy interventions on psychological resilience and sleep quality among submarine personnel with insomnia symptoms.Methods:Using convenience sampling,92 submarine personnel with insomnia symptoms undergoing recuperation at a PLA sanatorium between July 2023 and May 2025 were randomly allocated to experimental and control groups(n=46 each).The control group received forest therapy intervention,while the intervention group received combined VR and forest therapy interventions.Pre-and post-intervention assessments were conducted using the Pittsburgh Sleep Quality Index(PSQI)and Connor-Davidson Resilience Scale(CD-RISC).Results:There is no significant differences between two groups before the intervention on sleep or psychological resilience.Both groups showed significant pre-to post-intervention improvements in sleep and resilience;however,mixed-ANOVA results showed that the intervention(VR+forest therapy)group achieved significantly better outcomes than the control group at post-intervention after Bonferroni correction,including lower PSQI total and key component scores(subjective sleep quality,sleep efficiency,daytime dysfunction)and higher CD-RISC resilience scores.Conclusions:The integration of virtual reality and forest therapy effectively improved sleep quality and psychological resilience among submarine personnel with insomnia symptoms.This combined intervention shows promise as a non-pharmacological approach in military healthcare settings;however,further studies are needed to validate and generalize these findings.展开更多
Detector and event visualization are crucial components of high-energy physics(HEP)experimental software.Virtual reality(VR)technologies and multimedia development platforms,such as Unity,offer enhanced display effect...Detector and event visualization are crucial components of high-energy physics(HEP)experimental software.Virtual reality(VR)technologies and multimedia development platforms,such as Unity,offer enhanced display effects and flexible extensibility for visualization in HEP experiments.In this study,we present a VR-based method for detector and event displays in the Jiangmen Underground Neutrino Observatory(JUNO)experiment.This method shares the same detector geometry descriptions and event data model as those in the offline software and provides the necessary data conversion interfaces.The VR methodology facilitates an immersive exploration of the virtual environment in JUNO,enabling users to investigate the detector geometry,visualize event data,and tune the detector simulation and event reconstruction algorithms.Additionally,this approach supports applications in data monitoring,physics data analysis,and public outreach initiatives.展开更多
In recent years,three-dimensional reconstruction technologies that employ multiple cameras have continued to evolve significantly,enabling remote collaboration among users in extended Reality(XR)environments.In additi...In recent years,three-dimensional reconstruction technologies that employ multiple cameras have continued to evolve significantly,enabling remote collaboration among users in extended Reality(XR)environments.In addition,methods for deploying multiple cameras for motion capture of users(e.g.,performers)are widely used in computer graphics.As the need to minimize and optimize the number of cameras grows to reduce costs,various technologies and research approaches focused on Optimal Camera Placement(OCP)are continually being proposed.However,as most existing studies assume homogeneous camera setups,there is a growing demand for studies on heterogeneous camera setups.For instance,technical demands keep emerging in scenarios with minimal camera configurations,especially regarding cost factors,the physical placement of cameras given the spatial structure,and image capture strategies for heterogeneous cameras,such as high-resolution RGB cameras and depth cameras.In this study,we propose a pre-visualization and simulation method for the optimal placement of heterogeneous cameras in XR environments,accounting for both the specifications of heterogeneous cameras(e.g.,field of view)and the physical configuration(e.g.,wall configuration)in real-world spaces.The proposed method performs a visibility analysis of cameras by considering each camera’s field-of-view volume,resolution,and unique characteristics,along with physicalspace constraints.This approach enables the optimal position and rotation of each camera to be recommended,along with the minimum number of cameras required.In the results of our study conducted in heterogeneous camera combinations,the proposed method achieved 81.7%~82.7%coverage of the target visual information using only 2~3 cameras.In contrast,single(or homogeneous)-typed cameras were required to use 11 cameras for 81.6%coverage.Accordingly,we found that camera deployment resources can be reduced with the proposed approaches.展开更多
Surgical navigation has evolved significantly through advances in augmented reality,virtual reality,and mixed reality,improving precision and safety across many clinical applications,including neurosurgery,maxillofaci...Surgical navigation has evolved significantly through advances in augmented reality,virtual reality,and mixed reality,improving precision and safety across many clinical applications,including neurosurgery,maxillofacial,spinal,and arthroplasty procedures.By integrating preoperative imaging with real-time intraoperative data,these systems provide dynamic guidance,reduce radiation exposure,and minimize tissue damage.Key challenges persist,including intraoperative registration accuracy,flexible tissue deformation,respiratory compensation,and real-time imaging quality.Emerging solutions include artificial intelligence-driven segmentation,deformation-field modeling,and hybrid registration techniques.Future developments will include lightweight,portable systems,improved non-rigid registration algorithms,and greater clinical adoption.Despite advances in rigid-tissue applications,soft-tissue navigation requires additional innovation to address motion variability and registration reliability,ultimately advancing minimally invasive surgery and precision medicine.展开更多
Conventional surgical teaching techniques face several challenges,highlighting a necessity for ongoing innovation in ophthalmology education to align with the evolving demands of clinical practice.The recent rapid adv...Conventional surgical teaching techniques face several challenges,highlighting a necessity for ongoing innovation in ophthalmology education to align with the evolving demands of clinical practice.The recent rapid advancement of computer technology has enabled the integration of virtual reality(VR)into medical training,thereby revolutionizing ophthalmic surgical education through VRbased educational methods.VR technology offers a safe,risk-free environment for trainees to practice repeatedly,enhancing surgical skills and accelerating the learning curve without compromising patient safety.This research outlines the application of VR technology in ophthalmic surgical skills training,particularly in cataract and vitreoretinal surgery.Including assessing the effectiveness of intraocular surgery training systems,evaluating skills transfer to the operating room,comparing it with wet lab cataract surgery training,and enhancing non-dominant hand training for cataract surgery,among other aspects.Additionally,this paper will identify the limitations of VR technology in ocular surgical skills training,offer improvement strategies,and detail the advantages and prospects,with the objective of guiding subsequent researchers.展开更多
Medical procedures are inherently invasive and carry the risk of inducing pain to the mind and body.Recently,efforts have been made to alleviate the discomfort associated with invasive medical procedures through the u...Medical procedures are inherently invasive and carry the risk of inducing pain to the mind and body.Recently,efforts have been made to alleviate the discomfort associated with invasive medical procedures through the use of virtual reality(VR)technology.VR has been demonstrated to be an effective treatment for pain associated with medical procedures,as well as for chronic pain conditions for which no effective treatment has been established.The precise mechanism by which the diversion from reality facilitated by VR contributes to the diminution of pain and anxiety has yet to be elucidated.However,the provision of positive images through VR-based visual stimulation may enhance the functionality of brain networks.The salience network is diminished,while the default mode network is enhanced.Additionally,the medial prefrontal cortex may establish a stronger connection with the default mode network,which could result in a reduction of pain and anxiety.Further research into the potential of VR technology to alleviate pain could lead to a reduction in the number of individuals who overdose on painkillers and contribute to positive change in the medical field.展开更多
Phantom limb pain(PLP)is not only a physical pain experience but also poses a significant challenge to mental health and quality of life.Currently,the mechanism of PLP treatment is still unclear,and there are many met...Phantom limb pain(PLP)is not only a physical pain experience but also poses a significant challenge to mental health and quality of life.Currently,the mechanism of PLP treatment is still unclear,and there are many methods with varying effects.This article starts with the application research of extended reality technology in PLP treatment,through describing the application of its branch technologies(virtual reality,augmented reality,and mixed reality technology),to lay the foundation for subsequent research,in the hope of finding advanced and effective treatment methods,and providing a basis for future product transformation.展开更多
Objectives:To explore the efficacy and safety of virtual reality(VR)in relieving negative emotions in patients with breast cancer with different personalities.Methods:A randomized controlled trial was conducted.Betwee...Objectives:To explore the efficacy and safety of virtual reality(VR)in relieving negative emotions in patients with breast cancer with different personalities.Methods:A randomized controlled trial was conducted.Between April 2023 and October 2023,we enrolled patients with breast cancer treated in the Department of Breast Cancer and Oncology at Sun Yat-Sen Memorial Hospital,Sun Yat-Sen University,Guangdong Province.The patients were randomly divided into an intervention group(n=118)and a control group(n=119)using block randomization.The intervention group received the VR intervention 3-5 times over 5±2 weeks using natural landscapes with music or relaxation guidance,and the duration of each VR intervention was 15±3 min.The control group received routine nursing care,including disease education and psychological counseling.Patients were assessed using the Type D Scale,Positive and Negative Affect Scale,and Distress Thermometer,and adverse events during the intervention were recorded.Results:Overall,85 patients completed the study(44 in the intervention group and 41 in the control group).Patients with Type D personalities showed more negative emotions[25.0(21.5,27.5)vs.19.0(16.0,24.0),P=0.001]and distressed attitudes[4.0(2.0,5.0)vs.3.0(1.0,4.0),P=0.020]with fewer positive emotions(27.2±5.6 vs.31.0±5.9,P=0.014)than those with non-Type D personalities.Total population analysis revealed no significant differences between the groups.However,in the subgroup analysis,patients with Type D personalities in the intervention group showed greater relief from negative emotions than those in the control group[median difference,-5.0(-9.0,-2.5)vs.-2.0(-4.0,2.0),P=0.046].No significant differences were found between groups of patients with non-Type D personality traits.The proportion of adverse events was not significantly different between groups(P=0.110).Conclusions:Breast cancer patients with Type D personalities suffer more severe negative emotions and distress,and more attention should be paid to them.VR intervention significantly and safely reduced negative emotions in patients with Type D personalities.展开更多
The use of virtual reality to educate preoperative patients has a positive impact on nurses as well as patients undergoing treatment.It can help improve patient satisfaction and improve favorable outcomes by reducing ...The use of virtual reality to educate preoperative patients has a positive impact on nurses as well as patients undergoing treatment.It can help improve patient satisfaction and improve favorable outcomes by reducing patient anxiety and proving adequate knowledge about the procedure and possible outcomes to the patient.It also reduces burden on nursing staff and counsellors.Larger and more diverse cohort studies will help us understand the wider application of this tool on the patient population.It may be difficult to apply this tool on elderly patients with failing eyesight,multiple physical comorbidities.Also,there may be reduced acceptance of this modality by older nursing staff and practitioners who may prefer the traditional verbal version for counselling.We will benefit from a combined approach of using virtual reality apps with tradition one-on-one counselling to help alleviate patient concerns and improve patient and healthcare professional satisfaction.展开更多
Augmented reality(AR)is an emerging dynamic technology that effectively supports education across different levels.The increased use of mobile devices has an even greater impact.As the demand for AR applications in ed...Augmented reality(AR)is an emerging dynamic technology that effectively supports education across different levels.The increased use of mobile devices has an even greater impact.As the demand for AR applications in education continues to increase,educators actively seek innovative and immersive methods to engage students in learning.However,exploring these possibilities also entails identifying and overcoming existing barriers to optimal educational integration.Concurrently,this surge in demand has prompted the identification of specific barriers,one of which is three-dimensional(3D)modeling.Creating 3D objects for augmented reality education applications can be challenging and time-consuming for the educators.To address this,we have developed a pipeline that creates realistic 3D objects from the two-dimensional(2D)photograph.Applications for augmented and virtual reality can then utilize these created 3D objects.We evaluated the proposed pipeline based on the usability of the 3D object and performance metrics.Quantitatively,with 117 respondents,the co-creation team was surveyed with openended questions to evaluate the precision of the 3D object created by the proposed photogrammetry pipeline.We analyzed the survey data using descriptive-analytical methods and found that the proposed pipeline produces 3D models that are positively accurate when compared to real-world objects,with an average mean score above 8.This study adds new knowledge in creating 3D objects for augmented reality applications by using the photogrammetry technique;finally,it discusses potential problems and future research directions for 3D objects in the education sector.展开更多
Purpose: This study aimed to investigate the immediate effects of optokinetic stimulation (OKS) using virtual reality (VR) on visual dependency and sensory reweighting in postural control during static standing. Speci...Purpose: This study aimed to investigate the immediate effects of optokinetic stimulation (OKS) using virtual reality (VR) on visual dependency and sensory reweighting in postural control during static standing. Specifically, it examined whether VR-based OKS could reduce visual dependency more effectively than visual deprivation through eye closure. Methods: Ten healthy adults participated in this study. A balance function meter was used to measure postural stability, including Romberg ratios before and after two conditions: VR-based OKS (VR + OKS) and eye closure (EC). Participants performed a two-minute standing task under each condition in random order, with adequate rest between tasks. In the VR + OKS condition, a smartphone-based VR headset presented a rotational OKS, while in the EC condition, participants stood with their eyes closed. Statistical analyses were conducted using paired t-tests to compare pre- and post-task Romberg ratios. Results: No significant differences were observed in the pre-task Romberg ratios between conditions. After the VR + OKS condition, significant reductions in Romberg A and Romberg V were observed. In contrast, no significant changes were noted in Romberg ratios after the EC condition. Conclusion: VR-based OKS significantly reduced visual dependency, as indicated by decreased Romberg ratios, suggesting its potential to facilitate sensory reweighting during postural control. These findings highlight the utility of low-cost VR devices in balance rehabilitation for conditions involving high visual dependency. Future studies should expand on this preliminary research by including larger sample sizes and diverse populations to confirm its clinical applicability.展开更多
This research pioneers the integration of geographic information systems(GIS)and 3D modeling within a virtual reality(VR)framework to assess the viability and planning of a 20 MW hybrid wind-solarphotovoltaic(PV)syste...This research pioneers the integration of geographic information systems(GIS)and 3D modeling within a virtual reality(VR)framework to assess the viability and planning of a 20 MW hybrid wind-solarphotovoltaic(PV)system connected to the local grid.The study focuses on Dakhla,Morocco,a region with vast untapped renewable energy potential.By leveraging GIS,we are innovatively analyzing geographical and environmental factors that influence optimal site selection and system design.The incorporation of VR technologies offers an unprecedented level of realism and immersion,allowing stakeholders to virtually experience the project's impact and design in a dynamic,interactive environment.This novel methodology includes extensive data collection,advanced modeling,and simulations,ensuring that the hybrid system is precisely tailored to the unique climatic and environmental conditions of Dakhla.Our analysis reveals that the region possesses a photovoltaic solar potential of approximately2400 k Wh/m^(2) per year,with an average annual wind power density of about 434 W/m^(2) at an 80-meter hub height.Productivity simulations indicate that the 20 MW hybrid system could generate approximately 60 GWh of energy per year and 1369 GWh over its 25-year lifespan.To validate these findings,we employed the System Advisor Model(SAM)software and the Global Solar Photovoltaic Atlas platform.This comprehensive and interdisciplinary approach not only provides a robust assessment of the system's feasibility but also offers valuable insights into its potential socio-economic and environmental impact.展开更多
The rapid evolution of virtual reality(VR)and augmented reality(AR)technologies has significantly transformed human-computer interaction,with applications spanning entertainment,education,healthcare,industry,and remot...The rapid evolution of virtual reality(VR)and augmented reality(AR)technologies has significantly transformed human-computer interaction,with applications spanning entertainment,education,healthcare,industry,and remote collaboration.A central challenge in these immersive systems lies in enabling intuitive,efficient,and natural interactions.Hand gesture recognition offers a compelling solution by leveraging the expressiveness of human hands to facilitate seamless control without relying on traditional input devices such as controllers or keyboards,which can limit immersion.However,achieving robust gesture recognition requires overcoming challenges related to accurate hand tracking,complex environmental conditions,and minimizing system latency.This study proposes an artificial intelligence(AI)-driven framework for recognizing both static and dynamic hand gestures in VR and AR environments using skeleton-based tracking compliant with the OpenXR standard.Our approach employs a lightweight neural network architecture capable of real-time classification within approximately 1.3mswhilemaintaining average accuracy of 95%.We also introduce a novel dataset generation method to support training robust models and demonstrate consistent classification of diverse gestures across widespread commercial VR devices.This work represents one of the first studies to implement and validate dynamic hand gesture recognition in real time using standardized VR hardware,laying the groundwork for more immersive,accessible,and user-friendly interaction systems.By advancing AI-driven gesture interfaces,this research has the potential to broaden the adoption of VR and AR across diverse domains and enhance the overall user experience.展开更多
Objective:To evaluate the effect of reality therapy counselling on the levels of stress,anxiety and depression of women awaiting the result of amniocentesis.Methods:This randomized clinical trial was conducted on the ...Objective:To evaluate the effect of reality therapy counselling on the levels of stress,anxiety and depression of women awaiting the result of amniocentesis.Methods:This randomized clinical trial was conducted on the pregnant women who had referred to genetic laboratory to provide their amniocentesis samples in Isfahan,Iran from November 2019 to February 2020.Pregnant women were divided into the control and intervention groups.The control group received routine care.The intervention group received reality therapy counselling during eight merged sessions(two sessions in week).Each therapy session lasted for 90 to 120 minutes.Both groups completed the Depression,Anxiety and Stress Scale-21 items(DASS-21)questionnaire level before and after the intervention.These three variables(depression,anxiety and stress)were the primary variables of the study.Results:64 pregnant women were included,with 32 in each group.Before the intervention,the mean score of anxiety and depression had no significant difference between the control and intervention groups,but after the reality therapy counselling,the mean scores of stress,anxiety,and depression in the intervention group decreased significantly compared to the control group(P<0.001).Conclusions:Reality therapy counselling can be offered as a simple,effective and accessible way to reduce stress,anxiety and depression in women awaiting amniocentesis result.展开更多
Extended Reality(XR)technologies are increasingly employed in museums and heritage contexts to create immersive,interactive experiences that enhance public engagement with cultural content.However,their widespread ado...Extended Reality(XR)technologies are increasingly employed in museums and heritage contexts to create immersive,interactive experiences that enhance public engagement with cultural content.However,their widespread adoption is often hindered by high development costs,limited technical expertise,and accessibility concerns.This paper introduces ExPresS XR(Experimentation and Presentation for Science with OpenXR),an open-source platform built on the Unity game engine,enabling the creation of Virtual,Augmented,and Mixed Reality exhibitions without programming skills.The system provides museumspecific functionalities,including rapid virtual space creation,interactive artifact showcases,gamified learning modules,and integrated visitor data collection.Two case studies-Temple Tax&Doves,a VR reconstruction of Herod’s Temple with numismatic learning tasks,and Hornmoldhaus VR,a comprehensive virtual representation of the Hornmoldhaus City Museum incorporating both its Japanese artifact collection and other exhibits such as a Roman engraved gem,reconstructed wine cellar,and archival holdings–demonstrate the platform’s application in archaeological and historical contexts.Drawing on over ten XR projects,the paper identifies best practices for motion design,interaction simplicity,and balancing scholarly accuracy with engaging gameplay.ExPresS XR offers a practical,cost-effective approach to XR-based science communication,supporting museums,archaeologists,and cultural institutions in developing accessible,research-informed virtual exhibitions.展开更多
Objective:Partial or segmental inferior vena cava(IVC)resection is indicated for tumor control in patients with renal tumors invading the IVC.This study aimed to introduce a virtual vascular endoscope to assist surgeo...Objective:Partial or segmental inferior vena cava(IVC)resection is indicated for tumor control in patients with renal tumors invading the IVC.This study aimed to introduce a virtual vascular endoscope to assist surgeons in locating IVC invasion,formulate a surgical plan for robot-assisted IVC thrombectomy(RA-IVCT),and evaluate its potential value.Methods:The reconstruction involves building the construction of deep learning models to predict IVC invasion,which were evaluated via intraoperative findings and pathological analysis.Thirty-six patients with renal tumors and IVC thrombi who underwent RA-IVCT between June 2016 and March 2022 were included in the study.A virtual vascular endoscopy was performed based on preoperative CT findings to identify IVC invasion.Based on the extent of IVC wall invasion and the collateral situation,surgeons could decide whether to perform partial or segmental IVC resection during RA-IVCT.Results:Twenty patients were retrospectively analysed for training in virtual vascular endoscopy(the training cohort),and 16 patients were prospectively analysed to evaluate the accuracy of this technique(the validation cohort).Sixteen patients with IVC invasion underwent cavectomy,whereas six patients underwent partial IVC resection.In the validation cohort,pathological analysis confirmed the exact location of IVC invasion in eight of the nine patients,as indicated by virtual vascular endoscopy.Patients who underwent partial IVC wall resection had less lower extremity edema than those who underwent cavectomy.Conclusion:Our initial experience showed that the virtual vascular endoscopy could assist surgeons in identifying IVC invasion and creating a surgical plan for RA-IVCT.展开更多
From the era of mass communication to the era of generative artificial intelligence, under the construction of big data, algorithms and computing power, the mimicry environment has gradually evolved into multiple virt...From the era of mass communication to the era of generative artificial intelligence, under the construction of big data, algorithms and computing power, the mimicry environment has gradually evolved into multiple virtual dreamland: digital replication technology builds the first long-distance online news, and strong editing and weak mining aggravate the alienation of news production and practice;the algorithm model generated randomly by probability creates the second news illusion, and the exhaustibility of calculation makes AIGC completely divorced from reality. Man-machine speech cuts off the rational and open dialogue in the public sphere, and interpersonal relationship falls into the social division woven by man-machine relationship. In this process, the authenticity of news has suffered a fierce impact. From the perspective of the development history of media technology, based on the theory of “mimetic environment” put forward by Lippmann, taking ChatGPT as a concrete case, this paper reveals the current situation of the continuous separation between the public and the real and objective environment by analyzing the evolution logic from mimetic environment to multiple virtual worlds, and puts forward some ways to break the ice, such as collaboration between eyewitness evidence and intelligent technology, cooperation between generative AI and journalists, collusion between recommendation algorithm and value orientation, so as to seek an effective path to protect the truth of news and bridge the gap between the virtual and the real world.展开更多
The convergence of large language models(LLMs)and virtual reality(VR)technologies has led to significant breakthroughs across multiple domains,particularly in healthcare and medicine.Owing to its immersive and interac...The convergence of large language models(LLMs)and virtual reality(VR)technologies has led to significant breakthroughs across multiple domains,particularly in healthcare and medicine.Owing to its immersive and interactive capabilities,VR technology has demonstrated exceptional utility in surgical simulation,rehabilitation,physical therapy,mental health,and psychological treatment.By creating highly realistic and precisely controlled environments,VR not only enhances the efficiency of medical training but also enables personalized therapeutic approaches for patients.The convergence of LLMs and VR extends the potential of both technologies.LLM-empowered VR can transform medical education through interactive learning platforms and address complex healthcare challenges using comprehensive solutions.This convergence enhances the quality of training,decision-making,and patient engagement,paving the way for innovative healthcare delivery.This study aims to comprehensively review the current applications,research advancements,and challenges associated with these two technologies in healthcare and medicine.The rapid evolution of these technologies is driving the healthcare industry toward greater intelligence and precision,establishing them as critical forces in the transformation of modern medicine.展开更多
With the rapid development of artificial intelligence technology,the development of virtual reality technology has received increasing attention in various fields.Based on the difficulties in the course construction o...With the rapid development of artificial intelligence technology,the development of virtual reality technology has received increasing attention in various fields.Based on the difficulties in the course construction of“Virtual Reality Technology”,this paper adopts a questionnaire survey method to study the learning effects of students majoring in digital media technology at Guangxi University of Finance and Economics regarding the“Virtual Reality Technology”course.The research mainly involves four aspects:learning content,teaching effectiveness,learning experience,and future development needs.The research analysis in this paper not only provides strong support for the construction of a first-class course in“Virtual Reality Technology”but also offers references for the course construction of digital media technology majors in other universities.展开更多
Objective To develop a multimodal imaging atlas of a rat brain-computer interface(BCI)that incorporates brain,arterial,bone tissue and a BCI device using mixed reality(MR)for three-dimensional(3D)visualization.Methods...Objective To develop a multimodal imaging atlas of a rat brain-computer interface(BCI)that incorporates brain,arterial,bone tissue and a BCI device using mixed reality(MR)for three-dimensional(3D)visualization.Methods An invasive BCI was implanted in the left visual cortex of 4-week-old Sprague–Dawley rats.Multimodal imaging techniques,including micro-CT and 9.0 T MRI,were used to acquire images of the rat cranial bone structure,vascular distribution,brain tissue functional zones,and BCI device before and after implantation.Using 3D-slicer software,the images were fused through spatial transformations,followed by image segmentation and 3D model reconstruction.The HoloLens platform was employed for MR visualization.Results This study constructed a multimodal imaging atlas for rats that included the skull,brain tissue,arterial tissue,and BCI device coupled with MR technology to create an interactive 3D anatomical model.Conclusions This multimodal 3D atlas provides an objective and stable reference for exploring complex relationships between brain tissue structure and function,enhancing the understanding of the operational principles of BCIs.This is the first multimodal 3D imaging atlas related to a BCI created using Sprague–Dawley rats.展开更多
文摘Background:Submarine personnel often experience insomnia and reduced psychological resilience due to extended deployments in confined,high-stress environments.Effective non-pharmacological interventions are needed to improve sleep quality and resilience in this population.This study aimed to investigate the effect of virtual reality(VR)combined with forest therapy interventions on psychological resilience and sleep quality among submarine personnel with insomnia symptoms.Methods:Using convenience sampling,92 submarine personnel with insomnia symptoms undergoing recuperation at a PLA sanatorium between July 2023 and May 2025 were randomly allocated to experimental and control groups(n=46 each).The control group received forest therapy intervention,while the intervention group received combined VR and forest therapy interventions.Pre-and post-intervention assessments were conducted using the Pittsburgh Sleep Quality Index(PSQI)and Connor-Davidson Resilience Scale(CD-RISC).Results:There is no significant differences between two groups before the intervention on sleep or psychological resilience.Both groups showed significant pre-to post-intervention improvements in sleep and resilience;however,mixed-ANOVA results showed that the intervention(VR+forest therapy)group achieved significantly better outcomes than the control group at post-intervention after Bonferroni correction,including lower PSQI total and key component scores(subjective sleep quality,sleep efficiency,daytime dysfunction)and higher CD-RISC resilience scores.Conclusions:The integration of virtual reality and forest therapy effectively improved sleep quality and psychological resilience among submarine personnel with insomnia symptoms.This combined intervention shows promise as a non-pharmacological approach in military healthcare settings;however,further studies are needed to validate and generalize these findings.
基金supported by the National Natural Science Foundation of China(Nos.12175321,W2443004,11975021,11675275,U1932101)Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA10010900)+2 种基金National Key Research and Development Program of China(Nos.2023YFA1606000 and 2020YFA0406400)National College Students Science and Technology Innovation ProjectUndergraduate Base Scientific Research Project of Sun Yat-sen University。
文摘Detector and event visualization are crucial components of high-energy physics(HEP)experimental software.Virtual reality(VR)technologies and multimedia development platforms,such as Unity,offer enhanced display effects and flexible extensibility for visualization in HEP experiments.In this study,we present a VR-based method for detector and event displays in the Jiangmen Underground Neutrino Observatory(JUNO)experiment.This method shares the same detector geometry descriptions and event data model as those in the offline software and provides the necessary data conversion interfaces.The VR methodology facilitates an immersive exploration of the virtual environment in JUNO,enabling users to investigate the detector geometry,visualize event data,and tune the detector simulation and event reconstruction algorithms.Additionally,this approach supports applications in data monitoring,physics data analysis,and public outreach initiatives.
基金supported by the 2024 Research Fund of University of Ulsan.
文摘In recent years,three-dimensional reconstruction technologies that employ multiple cameras have continued to evolve significantly,enabling remote collaboration among users in extended Reality(XR)environments.In addition,methods for deploying multiple cameras for motion capture of users(e.g.,performers)are widely used in computer graphics.As the need to minimize and optimize the number of cameras grows to reduce costs,various technologies and research approaches focused on Optimal Camera Placement(OCP)are continually being proposed.However,as most existing studies assume homogeneous camera setups,there is a growing demand for studies on heterogeneous camera setups.For instance,technical demands keep emerging in scenarios with minimal camera configurations,especially regarding cost factors,the physical placement of cameras given the spatial structure,and image capture strategies for heterogeneous cameras,such as high-resolution RGB cameras and depth cameras.In this study,we propose a pre-visualization and simulation method for the optimal placement of heterogeneous cameras in XR environments,accounting for both the specifications of heterogeneous cameras(e.g.,field of view)and the physical configuration(e.g.,wall configuration)in real-world spaces.The proposed method performs a visibility analysis of cameras by considering each camera’s field-of-view volume,resolution,and unique characteristics,along with physicalspace constraints.This approach enables the optimal position and rotation of each camera to be recommended,along with the minimum number of cameras required.In the results of our study conducted in heterogeneous camera combinations,the proposed method achieved 81.7%~82.7%coverage of the target visual information using only 2~3 cameras.In contrast,single(or homogeneous)-typed cameras were required to use 11 cameras for 81.6%coverage.Accordingly,we found that camera deployment resources can be reduced with the proposed approaches.
基金Supported by the National Natural Science Foundation of China(NSFC)under Grants 62025104,62422102,62331005,62301034,and U22A2052the Beijing Natural Science Foundation-Daxing Innovation Joint Fund(L256040).
文摘Surgical navigation has evolved significantly through advances in augmented reality,virtual reality,and mixed reality,improving precision and safety across many clinical applications,including neurosurgery,maxillofacial,spinal,and arthroplasty procedures.By integrating preoperative imaging with real-time intraoperative data,these systems provide dynamic guidance,reduce radiation exposure,and minimize tissue damage.Key challenges persist,including intraoperative registration accuracy,flexible tissue deformation,respiratory compensation,and real-time imaging quality.Emerging solutions include artificial intelligence-driven segmentation,deformation-field modeling,and hybrid registration techniques.Future developments will include lightweight,portable systems,improved non-rigid registration algorithms,and greater clinical adoption.Despite advances in rigid-tissue applications,soft-tissue navigation requires additional innovation to address motion variability and registration reliability,ultimately advancing minimally invasive surgery and precision medicine.
基金Supported by the Key Special Project of“Cutting-Edge Biotechnology”in the National Key Research and Development Program of China(No.2024YFC3406200)Sanming Project of Medicine in Shenzhen(No.SZSM202411007)Shenzhen Science and Technology Program(No.JCYJ20240813152704006).
文摘Conventional surgical teaching techniques face several challenges,highlighting a necessity for ongoing innovation in ophthalmology education to align with the evolving demands of clinical practice.The recent rapid advancement of computer technology has enabled the integration of virtual reality(VR)into medical training,thereby revolutionizing ophthalmic surgical education through VRbased educational methods.VR technology offers a safe,risk-free environment for trainees to practice repeatedly,enhancing surgical skills and accelerating the learning curve without compromising patient safety.This research outlines the application of VR technology in ophthalmic surgical skills training,particularly in cataract and vitreoretinal surgery.Including assessing the effectiveness of intraocular surgery training systems,evaluating skills transfer to the operating room,comparing it with wet lab cataract surgery training,and enhancing non-dominant hand training for cataract surgery,among other aspects.Additionally,this paper will identify the limitations of VR technology in ocular surgical skills training,offer improvement strategies,and detail the advantages and prospects,with the objective of guiding subsequent researchers.
文摘Medical procedures are inherently invasive and carry the risk of inducing pain to the mind and body.Recently,efforts have been made to alleviate the discomfort associated with invasive medical procedures through the use of virtual reality(VR)technology.VR has been demonstrated to be an effective treatment for pain associated with medical procedures,as well as for chronic pain conditions for which no effective treatment has been established.The precise mechanism by which the diversion from reality facilitated by VR contributes to the diminution of pain and anxiety has yet to be elucidated.However,the provision of positive images through VR-based visual stimulation may enhance the functionality of brain networks.The salience network is diminished,while the default mode network is enhanced.Additionally,the medial prefrontal cortex may establish a stronger connection with the default mode network,which could result in a reduction of pain and anxiety.Further research into the potential of VR technology to alleviate pain could lead to a reduction in the number of individuals who overdose on painkillers and contribute to positive change in the medical field.
文摘Phantom limb pain(PLP)is not only a physical pain experience but also poses a significant challenge to mental health and quality of life.Currently,the mechanism of PLP treatment is still unclear,and there are many methods with varying effects.This article starts with the application research of extended reality technology in PLP treatment,through describing the application of its branch technologies(virtual reality,augmented reality,and mixed reality technology),to lay the foundation for subsequent research,in the hope of finding advanced and effective treatment methods,and providing a basis for future product transformation.
基金supported by a project of the National Natural Science Foundation of China:Research on the integration of artificial intelligence and virtual reality technology to promote psychological rehabilitation of breast cancer patients with different personalities(project approval no.82073408).
文摘Objectives:To explore the efficacy and safety of virtual reality(VR)in relieving negative emotions in patients with breast cancer with different personalities.Methods:A randomized controlled trial was conducted.Between April 2023 and October 2023,we enrolled patients with breast cancer treated in the Department of Breast Cancer and Oncology at Sun Yat-Sen Memorial Hospital,Sun Yat-Sen University,Guangdong Province.The patients were randomly divided into an intervention group(n=118)and a control group(n=119)using block randomization.The intervention group received the VR intervention 3-5 times over 5±2 weeks using natural landscapes with music or relaxation guidance,and the duration of each VR intervention was 15±3 min.The control group received routine nursing care,including disease education and psychological counseling.Patients were assessed using the Type D Scale,Positive and Negative Affect Scale,and Distress Thermometer,and adverse events during the intervention were recorded.Results:Overall,85 patients completed the study(44 in the intervention group and 41 in the control group).Patients with Type D personalities showed more negative emotions[25.0(21.5,27.5)vs.19.0(16.0,24.0),P=0.001]and distressed attitudes[4.0(2.0,5.0)vs.3.0(1.0,4.0),P=0.020]with fewer positive emotions(27.2±5.6 vs.31.0±5.9,P=0.014)than those with non-Type D personalities.Total population analysis revealed no significant differences between the groups.However,in the subgroup analysis,patients with Type D personalities in the intervention group showed greater relief from negative emotions than those in the control group[median difference,-5.0(-9.0,-2.5)vs.-2.0(-4.0,2.0),P=0.046].No significant differences were found between groups of patients with non-Type D personality traits.The proportion of adverse events was not significantly different between groups(P=0.110).Conclusions:Breast cancer patients with Type D personalities suffer more severe negative emotions and distress,and more attention should be paid to them.VR intervention significantly and safely reduced negative emotions in patients with Type D personalities.
文摘The use of virtual reality to educate preoperative patients has a positive impact on nurses as well as patients undergoing treatment.It can help improve patient satisfaction and improve favorable outcomes by reducing patient anxiety and proving adequate knowledge about the procedure and possible outcomes to the patient.It also reduces burden on nursing staff and counsellors.Larger and more diverse cohort studies will help us understand the wider application of this tool on the patient population.It may be difficult to apply this tool on elderly patients with failing eyesight,multiple physical comorbidities.Also,there may be reduced acceptance of this modality by older nursing staff and practitioners who may prefer the traditional verbal version for counselling.We will benefit from a combined approach of using virtual reality apps with tradition one-on-one counselling to help alleviate patient concerns and improve patient and healthcare professional satisfaction.
文摘Augmented reality(AR)is an emerging dynamic technology that effectively supports education across different levels.The increased use of mobile devices has an even greater impact.As the demand for AR applications in education continues to increase,educators actively seek innovative and immersive methods to engage students in learning.However,exploring these possibilities also entails identifying and overcoming existing barriers to optimal educational integration.Concurrently,this surge in demand has prompted the identification of specific barriers,one of which is three-dimensional(3D)modeling.Creating 3D objects for augmented reality education applications can be challenging and time-consuming for the educators.To address this,we have developed a pipeline that creates realistic 3D objects from the two-dimensional(2D)photograph.Applications for augmented and virtual reality can then utilize these created 3D objects.We evaluated the proposed pipeline based on the usability of the 3D object and performance metrics.Quantitatively,with 117 respondents,the co-creation team was surveyed with openended questions to evaluate the precision of the 3D object created by the proposed photogrammetry pipeline.We analyzed the survey data using descriptive-analytical methods and found that the proposed pipeline produces 3D models that are positively accurate when compared to real-world objects,with an average mean score above 8.This study adds new knowledge in creating 3D objects for augmented reality applications by using the photogrammetry technique;finally,it discusses potential problems and future research directions for 3D objects in the education sector.
文摘Purpose: This study aimed to investigate the immediate effects of optokinetic stimulation (OKS) using virtual reality (VR) on visual dependency and sensory reweighting in postural control during static standing. Specifically, it examined whether VR-based OKS could reduce visual dependency more effectively than visual deprivation through eye closure. Methods: Ten healthy adults participated in this study. A balance function meter was used to measure postural stability, including Romberg ratios before and after two conditions: VR-based OKS (VR + OKS) and eye closure (EC). Participants performed a two-minute standing task under each condition in random order, with adequate rest between tasks. In the VR + OKS condition, a smartphone-based VR headset presented a rotational OKS, while in the EC condition, participants stood with their eyes closed. Statistical analyses were conducted using paired t-tests to compare pre- and post-task Romberg ratios. Results: No significant differences were observed in the pre-task Romberg ratios between conditions. After the VR + OKS condition, significant reductions in Romberg A and Romberg V were observed. In contrast, no significant changes were noted in Romberg ratios after the EC condition. Conclusion: VR-based OKS significantly reduced visual dependency, as indicated by decreased Romberg ratios, suggesting its potential to facilitate sensory reweighting during postural control. These findings highlight the utility of low-cost VR devices in balance rehabilitation for conditions involving high visual dependency. Future studies should expand on this preliminary research by including larger sample sizes and diverse populations to confirm its clinical applicability.
文摘This research pioneers the integration of geographic information systems(GIS)and 3D modeling within a virtual reality(VR)framework to assess the viability and planning of a 20 MW hybrid wind-solarphotovoltaic(PV)system connected to the local grid.The study focuses on Dakhla,Morocco,a region with vast untapped renewable energy potential.By leveraging GIS,we are innovatively analyzing geographical and environmental factors that influence optimal site selection and system design.The incorporation of VR technologies offers an unprecedented level of realism and immersion,allowing stakeholders to virtually experience the project's impact and design in a dynamic,interactive environment.This novel methodology includes extensive data collection,advanced modeling,and simulations,ensuring that the hybrid system is precisely tailored to the unique climatic and environmental conditions of Dakhla.Our analysis reveals that the region possesses a photovoltaic solar potential of approximately2400 k Wh/m^(2) per year,with an average annual wind power density of about 434 W/m^(2) at an 80-meter hub height.Productivity simulations indicate that the 20 MW hybrid system could generate approximately 60 GWh of energy per year and 1369 GWh over its 25-year lifespan.To validate these findings,we employed the System Advisor Model(SAM)software and the Global Solar Photovoltaic Atlas platform.This comprehensive and interdisciplinary approach not only provides a robust assessment of the system's feasibility but also offers valuable insights into its potential socio-economic and environmental impact.
基金supported by research fund from Chosun University,2024.
文摘The rapid evolution of virtual reality(VR)and augmented reality(AR)technologies has significantly transformed human-computer interaction,with applications spanning entertainment,education,healthcare,industry,and remote collaboration.A central challenge in these immersive systems lies in enabling intuitive,efficient,and natural interactions.Hand gesture recognition offers a compelling solution by leveraging the expressiveness of human hands to facilitate seamless control without relying on traditional input devices such as controllers or keyboards,which can limit immersion.However,achieving robust gesture recognition requires overcoming challenges related to accurate hand tracking,complex environmental conditions,and minimizing system latency.This study proposes an artificial intelligence(AI)-driven framework for recognizing both static and dynamic hand gestures in VR and AR environments using skeleton-based tracking compliant with the OpenXR standard.Our approach employs a lightweight neural network architecture capable of real-time classification within approximately 1.3mswhilemaintaining average accuracy of 95%.We also introduce a novel dataset generation method to support training robust models and demonstrate consistent classification of diverse gestures across widespread commercial VR devices.This work represents one of the first studies to implement and validate dynamic hand gesture recognition in real time using standardized VR hardware,laying the groundwork for more immersive,accessible,and user-friendly interaction systems.By advancing AI-driven gesture interfaces,this research has the potential to broaden the adoption of VR and AR across diverse domains and enhance the overall user experience.
基金supported by Student Research Committee,Kerman University of Medical Sciences(Protocol No.1398.020,Date:09.08.2019).
文摘Objective:To evaluate the effect of reality therapy counselling on the levels of stress,anxiety and depression of women awaiting the result of amniocentesis.Methods:This randomized clinical trial was conducted on the pregnant women who had referred to genetic laboratory to provide their amniocentesis samples in Isfahan,Iran from November 2019 to February 2020.Pregnant women were divided into the control and intervention groups.The control group received routine care.The intervention group received reality therapy counselling during eight merged sessions(two sessions in week).Each therapy session lasted for 90 to 120 minutes.Both groups completed the Depression,Anxiety and Stress Scale-21 items(DASS-21)questionnaire level before and after the intervention.These three variables(depression,anxiety and stress)were the primary variables of the study.Results:64 pregnant women were included,with 32 in each group.Before the intervention,the mean score of anxiety and depression had no significant difference between the control and intervention groups,but after the reality therapy counselling,the mean scores of stress,anxiety,and depression in the intervention group decreased significantly compared to the control group(P<0.001).Conclusions:Reality therapy counselling can be offered as a simple,effective and accessible way to reduce stress,anxiety and depression in women awaiting amniocentesis result.
文摘Extended Reality(XR)technologies are increasingly employed in museums and heritage contexts to create immersive,interactive experiences that enhance public engagement with cultural content.However,their widespread adoption is often hindered by high development costs,limited technical expertise,and accessibility concerns.This paper introduces ExPresS XR(Experimentation and Presentation for Science with OpenXR),an open-source platform built on the Unity game engine,enabling the creation of Virtual,Augmented,and Mixed Reality exhibitions without programming skills.The system provides museumspecific functionalities,including rapid virtual space creation,interactive artifact showcases,gamified learning modules,and integrated visitor data collection.Two case studies-Temple Tax&Doves,a VR reconstruction of Herod’s Temple with numismatic learning tasks,and Hornmoldhaus VR,a comprehensive virtual representation of the Hornmoldhaus City Museum incorporating both its Japanese artifact collection and other exhibits such as a Roman engraved gem,reconstructed wine cellar,and archival holdings–demonstrate the platform’s application in archaeological and historical contexts.Drawing on over ten XR projects,the paper identifies best practices for motion design,interaction simplicity,and balancing scholarly accuracy with engaging gameplay.ExPresS XR offers a practical,cost-effective approach to XR-based science communication,supporting museums,archaeologists,and cultural institutions in developing accessible,research-informed virtual exhibitions.
基金supported by the National Natural Science Foundation of China(No.82273412 to Huang Q).
文摘Objective:Partial or segmental inferior vena cava(IVC)resection is indicated for tumor control in patients with renal tumors invading the IVC.This study aimed to introduce a virtual vascular endoscope to assist surgeons in locating IVC invasion,formulate a surgical plan for robot-assisted IVC thrombectomy(RA-IVCT),and evaluate its potential value.Methods:The reconstruction involves building the construction of deep learning models to predict IVC invasion,which were evaluated via intraoperative findings and pathological analysis.Thirty-six patients with renal tumors and IVC thrombi who underwent RA-IVCT between June 2016 and March 2022 were included in the study.A virtual vascular endoscopy was performed based on preoperative CT findings to identify IVC invasion.Based on the extent of IVC wall invasion and the collateral situation,surgeons could decide whether to perform partial or segmental IVC resection during RA-IVCT.Results:Twenty patients were retrospectively analysed for training in virtual vascular endoscopy(the training cohort),and 16 patients were prospectively analysed to evaluate the accuracy of this technique(the validation cohort).Sixteen patients with IVC invasion underwent cavectomy,whereas six patients underwent partial IVC resection.In the validation cohort,pathological analysis confirmed the exact location of IVC invasion in eight of the nine patients,as indicated by virtual vascular endoscopy.Patients who underwent partial IVC wall resection had less lower extremity edema than those who underwent cavectomy.Conclusion:Our initial experience showed that the virtual vascular endoscopy could assist surgeons in identifying IVC invasion and creating a surgical plan for RA-IVCT.
文摘From the era of mass communication to the era of generative artificial intelligence, under the construction of big data, algorithms and computing power, the mimicry environment has gradually evolved into multiple virtual dreamland: digital replication technology builds the first long-distance online news, and strong editing and weak mining aggravate the alienation of news production and practice;the algorithm model generated randomly by probability creates the second news illusion, and the exhaustibility of calculation makes AIGC completely divorced from reality. Man-machine speech cuts off the rational and open dialogue in the public sphere, and interpersonal relationship falls into the social division woven by man-machine relationship. In this process, the authenticity of news has suffered a fierce impact. From the perspective of the development history of media technology, based on the theory of “mimetic environment” put forward by Lippmann, taking ChatGPT as a concrete case, this paper reveals the current situation of the continuous separation between the public and the real and objective environment by analyzing the evolution logic from mimetic environment to multiple virtual worlds, and puts forward some ways to break the ice, such as collaboration between eyewitness evidence and intelligent technology, cooperation between generative AI and journalists, collusion between recommendation algorithm and value orientation, so as to seek an effective path to protect the truth of news and bridge the gap between the virtual and the real world.
基金Supported by Noncommunicable Chronic Diseases-National Science and Technology Major Project(2024ZD0523200)National Natural Science Foundation of China(62301330,62101346).
文摘The convergence of large language models(LLMs)and virtual reality(VR)technologies has led to significant breakthroughs across multiple domains,particularly in healthcare and medicine.Owing to its immersive and interactive capabilities,VR technology has demonstrated exceptional utility in surgical simulation,rehabilitation,physical therapy,mental health,and psychological treatment.By creating highly realistic and precisely controlled environments,VR not only enhances the efficiency of medical training but also enables personalized therapeutic approaches for patients.The convergence of LLMs and VR extends the potential of both technologies.LLM-empowered VR can transform medical education through interactive learning platforms and address complex healthcare challenges using comprehensive solutions.This convergence enhances the quality of training,decision-making,and patient engagement,paving the way for innovative healthcare delivery.This study aims to comprehensively review the current applications,research advancements,and challenges associated with these two technologies in healthcare and medicine.The rapid evolution of these technologies is driving the healthcare industry toward greater intelligence and precision,establishing them as critical forces in the transformation of modern medicine.
基金Exploration and Research on the Construction of Teaching Resources for the“Virtual Reality Technology”Course in the Context of Artificial Intelligence。
文摘With the rapid development of artificial intelligence technology,the development of virtual reality technology has received increasing attention in various fields.Based on the difficulties in the course construction of“Virtual Reality Technology”,this paper adopts a questionnaire survey method to study the learning effects of students majoring in digital media technology at Guangxi University of Finance and Economics regarding the“Virtual Reality Technology”course.The research mainly involves four aspects:learning content,teaching effectiveness,learning experience,and future development needs.The research analysis in this paper not only provides strong support for the construction of a first-class course in“Virtual Reality Technology”but also offers references for the course construction of digital media technology majors in other universities.
基金supported by the National Natural Science Foundation of China(No.82172524 and No.81974355)National Innovation Platform Development Program(No.2020021105012440),China+3 种基金Major Program of Hubei Province(No.2021BEA161),ChinaMajor Key Project of Hubei Province(No.JD2023BAA005),ChinaWuhan Union Hospital Free Innovation Preliminary Research Fund(No.2024XHYN047),ChinaJoint Funds for the Innovation of Science and Technology(No.2024Y9062),Fujian Province,China.
文摘Objective To develop a multimodal imaging atlas of a rat brain-computer interface(BCI)that incorporates brain,arterial,bone tissue and a BCI device using mixed reality(MR)for three-dimensional(3D)visualization.Methods An invasive BCI was implanted in the left visual cortex of 4-week-old Sprague–Dawley rats.Multimodal imaging techniques,including micro-CT and 9.0 T MRI,were used to acquire images of the rat cranial bone structure,vascular distribution,brain tissue functional zones,and BCI device before and after implantation.Using 3D-slicer software,the images were fused through spatial transformations,followed by image segmentation and 3D model reconstruction.The HoloLens platform was employed for MR visualization.Results This study constructed a multimodal imaging atlas for rats that included the skull,brain tissue,arterial tissue,and BCI device coupled with MR technology to create an interactive 3D anatomical model.Conclusions This multimodal 3D atlas provides an objective and stable reference for exploring complex relationships between brain tissue structure and function,enhancing the understanding of the operational principles of BCIs.This is the first multimodal 3D imaging atlas related to a BCI created using Sprague–Dawley rats.
