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7th International Multi-Conference on Engineering and technology Innovation 2018, IMETI 2018

作者： Wang, Meihui Li, Yongxiang Lyu, Chuan Liu, Xi School of Reliability and Systems Engineering Beihang University China State Key Laboratory of Virtual Reality Technology System Beihang University China Technology and Engineering Center for Space Utilization Chinese Academy of Science Beijing China Xi'An Modern Control Technology Research Institute Xi'an710065 China

Immersing into virtual reality (VR) is a perception of being physically present in a non-physical world. Using immersive VR in maintenance brings great conveniences. For example, using virtual human operating in hazardous environment before the real person, which can prevent being hurt. In this paper, a system of immersive virtual maintenance (IVM) is presented. It is divided into three parts. The first part is Input, which contains the maintenance task and maintenance design. The second part is Method, with which making the virtual human and the users act in a unified way. The key to build IVM system is the interface between the motion capture system and virtual simulation software. The third part is Output, which presents the maintainability evaluation results. This paper focuses on how to build IVM system, the difficulties and solutions also be detailed. At last, a simple application is given. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Maintainability

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Effects of long term isolation on the emotion change of ‘‘Lunar Palace 365” crewmembers

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Science Bulletin 2019年第13期64卷 881-884页

作者： Zikai Hao Yinzhen Zhu Siyuan Feng Chen Meng Dawei Hu Hui Liu Hong Liu Beijing Advanced Innovation Centre for Biomedical Engineering Beihang UniversityBeijing 102402China Institute of Environmental Biology and Life Support Technology School of Biological Science and Medical EngineeringBeihang UniversityBeijing 100083China State Key Laboratory of Virtual Reality Technology and Systems School of Computer Science and EngineeringBeihang UniversityBeijing 100083China International Joint Research Center of Aerospace Biotechnology & Medical Engineering. Beihang University Beijing 100083China

The psychological health risk is one of the most serious and difficult risks to mitigate during manned deep space exploration[1].In a space capsule or station,the environment is isolated,and communication with the outside is limited to telephone or delayed *** monotonous working schedule also aggravates loneliness and homesickness,which could trigger negative moods,such as depression and ***,an astronaut’s unstable emotional state could be a threat to the safety and performance of a space mission.

关键词： Effects schedule trigger most is be

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research on Severe Weather Prediction Model Based on Multi-view Learning

Research on Severe Weather Prediction Model Based on Multi-v...

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2021 International Conference on Electronic Information Engineering and Computer Science, EIECS 2021

作者： Sun, Wenjie Zhang, Suli Zheng, Guoxun Zhang, Weixuan Changchun University of Technology School of Computer Science Engineering Jilin Prov. Changbai Mt. Ecol. Culture and Virtual Reality Simulation Engineering Research Center Jilin Provincial Key Laboratory of Changbai Historical Culture and VR Reconstruction Technology Changchun China

ISBN: (纸本)9781665416740

In the study of accurate prediction of severe weather, the regional climate characteristics are often not considered for targeted prediction. For the purpose of predicting severe weather more scientifically and accurately, and further accelerate the development of tourism in the Changbai Mountain area, we collect weather data in the Changbai Mountain area, redivision of severe weather based on regional characteristics, and propose Tri-Training severe weather forecasting model based Multi-view Semi-Supervised Learning. The experimental results show that the model proposed in this paper can accurately predict severe weather based on a very small number of labeled weather samples. When the proportion of labeled data samples is 20%, the model accuracy can reach more than 85%, and when the labeled data reaches 80%, the prediction accuracy can reach 95%. © 2021 IEEE.

关键词： Weather forecasting

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Applying CIECAM97s in colour management system

Applying CIECAM97s in colour management system

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IEEE Region 10 International Conference TENCON

作者： Jin-Seo Kim Maeng-Sub Cho Virtual Reality Center Computer and Software Technology Laboratory Electronics and Telecommunications Research Institute Taejon South Korea

The terminology of the color appearance model is described and the general structure and implementation method of color appearance models are described. Also the result of applying CIECAM97s in ETRI color management s... 详细信息

关键词： Color Predictive models Collision mitigation Monitoring Brightness Adaptation model Equations virtual reality Software Laboratories

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RETRACTED ARTICLE: The relationship between COP and COM during upright stance with ankle fixation

RETRACTED ARTICLE: The relationship between COP and COM duri...

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作者： Rui, Kou Fang, Pu Yang, Yang Meng, Zhang Honglun, Su Deyu, Li Yubo, Fan State Key Laboratory of Virtual Reality Technology and Systems Beihang University Beijing 100191 China School of Biological Science and Medical Engineering Beihang University Beijing 100191 China National Research Center for Rehabilitation Technical Aids Beijing 100176 China

ISBN: (纸本)9781424450893

center of pressure (COP) excursion is often used to quantify the stability of standing balance in clinical and experiments, but in fact, the stand balance is determined by maintaining the center of mass (COM) of body within the base of support. As ankle fixation will change the mechanism of keeping standing balance, the relationship between COP and COM may also be changed. On the purpose of discussing whether COP can still be used to assess the stability of standing balance with ankle fixed, this study employed a method for simultaneous measurement of COP and COM to acquire 10 subjects' standing balance data. Then we analyzed the difference between COP and COM during standing with or without ankles fixation. We found there are some differences and the correlation between COP and COM decreased. Therefore, we suggest these differences should be considered when COP is used to quantify the balance stability of postures with ankle fixation. © 2011 IEEE.

关键词： Biomedical engineering

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An improved vertex-clustering-based progressive mesh encoder

An improved vertex-clustering-based progressive mesh encoder

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IEEE International Conference on Multimedia and Expo (ICME)

作者： Guoping Wang Yongzhen Wu Guojing Hu Jingliang Peng Beijing Engineering Research Center of Virtual Simulation and Visualization (Peking University) School of Computer Science and Technology Shandong University

In this work, we propose improvements on a state-of-the-art scheme for progressive triangular mesh compression, which is based on hierarchical vertex clustering. Specifically, we fix several shortcomings of that scheme including quantization error accumulation, false facet generation and lack of facet orientation encoding. In addition, the resultant mesh encoder yields better rate-distortion performance than another state-of-the-art one on our test model, as demonstrated by the experiments.

关键词： Encoding Geometry Three-dimensional displays Rate-distortion Solid modeling visualization Intellectual property

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RETRACTED ARTICLE: A quantitative method for assessing the effect of training tasks on hand motor function

RETRACTED ARTICLE: A quantitative method for assessing the e...

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ISBN: (纸本)9781424450893

Training program is important for the rehabilitation of hand function, but its design is still based on the experience of the therapists. This paper presents a quantitative method based on quantity of the movement (QOM) to assess the effect of training tasks on certain joints, which can be a basis on establishing proper training programs for the concerned joints and fingers. Twelve subjects participated in 11 training tasks, and the movements of 14 joints of hand were recorded with data glove in each task, then QOM of each joint was calculated. The results demonstrated the feasibility of quantifying the training tasks with QOM. The joints that showed high QOM in a certain task were considered to be effectively trained by this task. Based on this, we can choose some specific tasks for training certain pathological joints and fingers. © 2011 IEEE.

关键词： Personnel training

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virtual worlds as a tool for enterprise services

Virtual worlds as a tool for enterprise services

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2009 6th IEEE Consumer Communications and Networking Conference, CCNC 2009

作者： Vijaykar, Sameer Kadavasal, Muthukkumar S. Dhara, Krishna K. Wu, Xiaotao Krishnaswamy, Venkatesh Dept. of Computer Science and Engg. Indian Institute of Technology Mumbai India Virtual Reality Applications Center Iowa State University Ames IA 50011 United States Avaya Labs. Research Lincroft NJ 07738 United States

ISBN: (纸本)9781424423095

Online virtual worlds offer exciting new opportunities for enterprises or businesses. To exploit these opportunities enterprises need to find a way to integrate virtual world services with their real-world services, and to exploit virtual worlds rich collaboration environment to offer new or enhanced services. However, there are many challenges to realizing these goals, such as resolving virtual and real identifications, controlling communication sessions between real and virtual world entities, and managing resources in both worlds. In this paper, we study these issues and propose a framework for integrating virtual worlds into enterprise service work flow. We implemented a customer service in a VW contact center that is integrated with corresponding enterprise services. We also present a novel mechanism in virtual worlds that allow users to bring their own resources, along with the contact center resources, and share the resources with other customers or agents to resolve customer issues. Further, we present experiences from our prototype. ©2009 IEEE.

关键词： Sales

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Modelling Study on Learning Affects for Classroom Teaching/Learning Auto-Evaluation

Modelling Study on Learning Affects for Classroom Teaching/L...

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2018第三届教育与创新国际会议

作者： Minyu Pan Jing Wang Zuying Luo College of Information Science and Technology Beijing Normal University Engineering Research Center of Virtual Reality and Applications Ministry of Education

In studies on classroom teaching auto-evaluation, we have achieved some remarkable results in Classroom Attendance Auto-management, learning attention & facial expression auto-analysis. For further utilizing learning affects to auto-evaluate classroom teaching/learning effects, we watch a large number of classroom videos. Then, based on the stimulus-response mechanism, we use learning facial expressions & attention to categorize students' learning affects(SLA) and construct a SLA transfer model. At last, we simply describe how to use SLA analysis results to auto-evaluate the classroom teaching/learning effects. This work lays a theoretical foundation for the studies on learning facial expressions and learning affects for classroom teaching/learning auto-evaluation.

关键词： Learning Affect Classroom Evaluation Affect Modelling Facial Expression Recognition

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COMPRESSING MATERIAL AND TEXTURE ATTRIBUTES FOR TRIANGULAR MESHES

COMPRESSING MATERIAL AND TEXTURE ATTRIBUTES FOR TRIANGULAR M...

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IEEE International Conference on Multimedia and Expo

ISBN: (纸本)9781479947607

A novel scheme for single-rate compression of material and texture attributes for triangular meshes is proposed in this work. For the material coding, it proposes a novel approach based on breadth-first surface traversal, exploiting the local coherence of the material attributes among neighboring facets;for the texture coordinate coding, it proposes a similar-triangle-based prediction method, exploiting the correlation between 3D geometry and its texture-space parameterization. As a result, the proposed algorithm achieves efficient coding of the material and the texture attributes, as experimentally demonstrated.

关键词： Compression Material Texture Mesh

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