2021 IEEE 7th International Conference on Virtual Reality (ICVR)最新文献

{"title":"A Lightweight Network for Outdoor Illumination Estimation on Mobile Devices","authors":"Fuyu Ma, Yinwei Zhan, Haidong Gao","doi":"10.1109/ICVR51878.2021.9483846","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483846","url":null,"abstract":"Outdoor illumination estimation is particularly essential for augmented reality applications. Traditionally, handcraft illumination features are used to recover outdoor illumination such as shadows and highlight areas of the scenes. These features are so dependent on human experience and auxiliary equipments that the performances of these approaches are limited. This paper presents a lightweight network based on MobileNet V3 to estimate outdoor illumination from a single outdoor image. A physically-based illumination model is fitted to the sky regions of outdoor panoramas to generate illumination parameters, and different field of view images are extracted from outdoor panoramas. The images with illumination parameters annotated are then used to train our lightweight network. Experiments show that our method can perform well and is suitable for mobile-based applications.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131409779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on Gesture Recognition and Interaction of Virtual Collaborative Disassembly Training","authors":"Zhaoyong Hu, Shuquan Sun, Yueming Wu, Hansheng Yan, Teng Zhu","doi":"10.1109/ICVR51878.2021.9483870","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483870","url":null,"abstract":"At present, most of the virtual disassembly training systems are single person training systems, and the interaction is relatively simple, which can not reflect the real natural interactive operation, so it can not meet the needs of multi-person collaborative disassembly training of complex equipment. In order to solve this problem, research on gesture recognition and interaction technology. Based on the demand analysis of disassembly training, 5 basic gestures and 3 auxiliary gestures are designed; A gesture feature extraction method suitable for immersive virtual disassembly training environment is proposed; The one-handed interaction object model and two-handed interaction object model are proposed, and the interactive hardware experimental platform is designed to realize the multi-person cooperative operation. The research content is applied to the virtual disassembly of the manual gearbox of a car, and the operation evaluation of the virtual disassembly training is carried out. The results show that: the gesture designed meets the requirements of common virtual disassembly and assembly operations, and the gesture and interaction intention are identified accurately, which can realize the interactive operation required by disassembly and assembly, and restore the real natural interactive operation to a certain extent.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126877032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Virtual Companion Empty-Nest Elderly Dining System Based on Virtual Avatars","authors":"Rui Dai, Zhigeng Pan","doi":"10.1109/ICVR51878.2021.9483852","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483852","url":null,"abstract":"With the further acceleration of my country's urbanization and aging, the number of empty-nest elderly people gradually accounts for a larger proportion of my country's social structure. The pension issue has also become a social issue of urgent concern. Many young people work busy to support their families in other cities, and cannot go home frequently to visit their elderly parents. It is even rarer to eat together. Based on virtual human technology, this paper introduces a remote virtual companion system based on depth camera Kinect, which aims to solve the problem that children cannot accompany empty-nest elderly to dine. This system supports multi-person collaborative interaction in different places, and supports two companion modes. One mode is that when relatives have time to accompany the elderly to eat, this system drives the virtual avatars through the character mapping algorithm and tracking the bone movements of the real person. The other mode is when the relatives do not have time to accompany the elderly to eat, this system uses intelligent virtual agent to accompany the elderly to eat. The interaction method of this system has three ways of multi-modal interaction, including visual interaction, gesture interaction, and voice interaction.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115195916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gamification of Upper Limb Virtual Rehabilitation in Post Stroke Elderly Using SilverTune- A Multi-sensory Tactile Musical Assistive System","authors":"Zhiqiang Luo, Ponraj Durairaj, Cheng Mun Lau, Yuichiro Katsumoto, E. Do, Ahmad Sapon Bin Zainuddin, Kensaku Kawauchi","doi":"10.1109/ICVR51878.2021.9483850","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483850","url":null,"abstract":"Gamification of virtual rehabilitation devices gained rapid interest in the last two decades. Its popularity and use in remote telehealth and rehabilitation have gained more importance and application with the current COVID-19 pandemic situation. The benefits of gamification and the use of virtual reality (VR) games in rehabilitation therapy and telerehabilitation have been particularly well demonstrated in post-stroke patients. In this study, we present our pilot study using a game-based therapy approaches for the upper limb (UL) rehabilitation in elderly post-stroke patients in Singapore. The aim of the study is to develop a smart multi-sensory musical assistive system, called SilverTune, to promote the rehabilitation outcomes of elderly post-stroke patients. The SilverTune is like a musical instrument which is highly adaptable to provide six types of music audios and play interactions to cater for various elderly’s preferences and therapeutic movement requirements. SilverTune can also quantitatively record therapeutic data, analyze performance in real time, and give multi-modal feedback to both elderly and therapist. It is designed to produce a variety of digital audios like drum, saxophone, bell, harp, etc. via changing the shape and the interaction behaviours of the users. A SilverTune mobile app was developed as a companion mobile app for SilverTune music therapy. The app can play the digital contents, which is activated by SilverTune. Furthermore, the app can record user’s profile and the data input from SilverTune for future analysis by the therapist. Two games were developed to play using SilverTune device. The first is a horse racing game where the horse moves around a racetrack. The second is a table tennis game whereby the table tennis ball is required to be served across the net to gain points. The horse racing game facilitated shoulder flexion and extension, whereas the table tennis game facilitated shoulder horizontal abduction and adduction. If the movement of the SilverTunes device is detected by the accelerometer, the horse or bat will run or swing forward. If no movement is detected, then the horse or bat will be stationary. Participants’ self-perceived level of performance and satisfaction were shown to have significant improvements after the intervention phase. Particpants were also assessed before and after interventions using Fugl Meyer Assessment-Upper Extremity (FMA-UE), Canadian Occupational Performance Measure (COPM) scores with improvements in passive joint motion. Post-intervention questionnaire found that many participants liked SilverTune games due to its novelty, audio/visual effects and that it helped them to stay focused during therapy. SilverTune can be potentially used as a telerehabilitation tool for the current COVID-19 pandemic situation to support a safe high-quality care at a reduced cost.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128067812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Realization of Production Practice System for Tandem Hot Strip Rolling Based on VR","authors":"Y. Sun, Jiaqi Chen, Quan Yang","doi":"10.1109/ICVR51878.2021.9483867","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483867","url":null,"abstract":"The production practice of tandem hot strip rolling is an important part of the practical teaching related to steel production. Due to the complex environment, many safety hazards and so on, it is impossible to effectively carry out production practice. To solve these problems, this paper designs and develops a production practice system for tandem hot strip rolling based on VR technology. This system builds 3D models of the building and equipment of the production workshop, simulates the production process, and includes 4 teaching functions such as 3D roaming, audio introduction, equipment perspective and exploded diagram of equipment, making it possible to carry out large-scale production practice teaching and effectively improving practice efficiency and teaching effectiveness.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125013157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on Interaction Design of Chemical Inquiry Virtual Experiment Based on Augmented Reality Technology","authors":"Ge Ting, W. Jianmin, Zhu Yongning, Chen Qiuyu","doi":"10.1109/ICVR51878.2021.9483706","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483706","url":null,"abstract":"The rapid development of Augmented Reality (AR for short) has promoted great changes in teaching methods in recent years. The technical characteristics of AR and its educational value drive middle school chemistry experiments to gradually develop towards the direction of strong interactivity, interest, and visualization. However, how the interactive content of Augmented Reality meets the core demands of users to improve the learning effect in chemical experiments has become a new topic for educators and interaction designers. Under the technical background of Augmented Reality and guided by Inquiry-based Learning theory, how Augmented Reality interactive information can assist and guide users to conduct experimental exploration is explored in this paper with the guidance and middle school chemistry virtual experiment as the main study object. Based on considerable investigations and studies, the experiment of sodium and water reaction is taken as an example to design the human-computer interaction interface in the experimental scenario. In this design, the situational information required by users is superimposed on the real experimental environment in real time, contributing to improving the exploration consciousness of users, reducing the distraction of their attention and cognitive load, and deepening their understanding of the experimental content. In this study, the design of the 3D space interaction interface based on Augmented Reality technology is investigated, providing great reference value to the interaction design based on Augmented Reality applications.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123488868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on the Method of Underwater Swimming Motion Capture","authors":"Jin Yang, Tianzeng Li, Zhiya Chen, Xiaodong Li","doi":"10.1109/ICVR51878.2021.9483853","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483853","url":null,"abstract":"With the development of virtual reality (VR) technology, immersive video content has gradually become a support for the improvement of traditional business processes in various industries. For swimming training, the integration of virtual reality technology to generate high-quality immersive content is useful for athletes to improve their personal sports level. Considering the influence of light refraction, this study proposes a calibration method of underwater 3D measurement system based on refraction compensation, which further improves the calibration accuracy of underwater motion capture and provides a new idea and method for the development of virtual reality technology in underwater.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130736087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on the Central Integration Technology for the Rehabilitation of Lower Limb Based on the Virtual Environment","authors":"Zewei Li, Zhaoyong Hu, Yingping Jiang, Xiaoya Zhang, Hanwu He","doi":"10.1109/ICVR51878.2021.9483816","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483816","url":null,"abstract":"Rehabilitation therapy based on the concept of central integration, is a new therapy in stroke rehabilitation in recent years. With the continuous spread of this rehabilitation therapy, more and more hospitals have begun to try this treatment. Central integration technology emphasizes stimulating patients' awareness of active movement by simulating living environment, so as to achieve the effect of patients' active movement. However, due to the diversification of patients' rehabilitation needs, it is difficult to provide a simulated living environment to meet a variety of rehabilitation needs while in hospitals. This paper has a research on the Central Integration technology for the rehabilitation of lower limb while based on the virtual environment, and have realized the dynamic configuration of the training environment for the central integration technology and the collection of training data, which lays the foundation for doctors to perform this curative rehabilitation therapy well and quantitative evaluation of the rehabilitation effect for patients.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123210351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Technology of Mixing Blood and Water Based on SPH","authors":"Weizhen Zeng, Zelong Zhang, Yanni Zou","doi":"10.1109/ICVR51878.2021.9483830","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483830","url":null,"abstract":"Background and objectives: In order to achieve the mixing of blood and water simulation and consider that blood is a non-Newtonian fluid and water is a Newtonian fluid, we propose a new simulation model which is based on SPH. The problem that non-Newtonian fluid and Newtonian fluid can not mix well is solved.Methods: The model algorithm is divided into three steps in the realization process. Firstly, calculate the velocity of the mixed fluid components, then, calculate the impact factor for each particle in the mixed fluid and adjust for abnormal impact factors. Finally, calculate the acceleration of the mixed fluid particle and update the particle state (e.g., position). The second step is the key process, because the update and correction of the impact factors directly affect the stability of the system. At the same time, considering that the system has good parallel ability, we optimize it here.Results: We also take into account the fluency of the system while achieving the mixing of blood and water and the experimental results show that this fluid mixing model can not only achieve good miscibility of blood and water, but also smooth operation of the system.Conclusions: The experimental results show that the model can simulate the miscibility of blood and water, at the same time, as long as the fluid property parameters are set reasonably, the model can also simulate the miscibility between other non-Newtonian fluids and Newtonian fluids. What’s more, by adjusting the influence factor, the model can simulate the mixed fluid simulation.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128319195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Improved MPS Method for Fluid Simulation of Dam Break","authors":"Feng Bian, Xiaofeng Sun, Senhao Wang","doi":"10.1109/ICVR51878.2021.9483843","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483843","url":null,"abstract":"MPS (Moving Particle Semi-Implicit) method is an effective method to solve the simulation of large-deformation free surface fluid flow. In order to improve the stability and accuracy of the MPS method, this paper proposes a collision model between fluid particles. The collision model assumes that the collisions between fluid particles are completely elastic collisions and follow the law of conservation of momentum and energy. The improved MPS method is used for the fluid simulation of two-dimensional and three-dimensional fluid dam break model. The simulation results show that the improved MPS algorithm has good stability, the calculation results are in better agreement with the experimental data, and it has a wider range of adaptability. The improved MPS method is more suitable for the simulation of large-deformation free surface fluid flow.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132432266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}