Frult Tolerant Implementation Of Parallel And Distributed Virtual Reality Applications In Multi User Environment Based On Architecture Of Heterogeneous Devices And Limited Publically Accessible Bandwidth
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Frult Tolerant Implementation Of Parallel And Distributed Virtual Reality Applications In Multi User Environment Based On Architecture Of Heterogeneous Devices And Limited Publically Accessible Bandwidth
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Author : Shabab Naqvi
language : en
Publisher: Lulu.com
Release Date :
Frult Tolerant Implementation Of Parallel And Distributed Virtual Reality Applications In Multi User Environment Based On Architecture Of Heterogeneous Devices And Limited Publically Accessible Bandwidth written by Shabab Naqvi and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Multi User Interaction Model For Inter Site Control Mimic
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Author : Gregory George
language : en
Publisher:
Release Date : 1992
Multi User Interaction Model For Inter Site Control Mimic written by Gregory George and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Data compression (Telecommunication) categories.
Abstract: "With the wealth of bandwidth that is now available through fiber technologies and the increased processing speeds of computers, distributed, real-time, multi-user applications have gained much attention. Unfortunately, many people still do not have access to the necessary high bandwidth communication lines or the high processing capabilities needed for these applications. Traditionally, virtual reality (VR) has only been available to those people not hampered by these constraints. However, we believe that a person may use low bandwidth lines (such as analog, voice-grade lines), along with relatively low processing speeds (such as personal computers (PCs)), to participate in distributed, interactive, multi-user, real-time VR environments. To verify our belief, we have designed and implemented an interaction control model, which runs on a 486 PC over a 9600 baud link. This model reduces bandwidth consumption by using a modular design for the interaction domain. It uses a remote procedure call platform to enchance distributed actions and addresses the conflicting goals of real-time interaction with low bandwidth and low processing capabilities. The implementation runs as a library to extend the functionality of the WorldToolKit package, a VR software package for personal computers created by Sense8 Corporation."
Group Navigation In Multi User Virtual Reality
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Author : Tim Weißker
language : en
Publisher:
Release Date : 2021
Group Navigation In Multi User Virtual Reality written by Tim Weißker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Multi-user virtual reality systems enable collocated as well as distributed users to perform collaborative activities in immersive virtual environments. A common activity in this context is to move from one location to the next as a group to explore the environment together. The simplest solution to realize these multi-user navigation processes is to provide each participant with a technique for individual navigation. However, this approach entails some potentially undesirable consequences such as the execution of a similar navigation sequence by each participant, a regular need for coordination within the group, and, related to this, the risk of losing each other during the navigation process. To overcome these issues, this thesis performs research on group navigation techniques that move group members together through a virtual environment. The presented work was guided by four overarching research questions that address the quality requirements for group navigation techniques, the differences between collocated and distributed settings, the scalability of group navigation, and the suitability of individual and group navigation for various scenarios. This thesis approaches these questions by introducing a general conceptual framework as well as the specification of central requirements for the design of group navigation techniques. The design, implementation, and evaluation of corresponding group navigation techniques demonstrate the applicability of the proposed framework. As a first step, this thesis presents ideas for the extension of the short-range teleportation metaphor, also termed jumping, for multiple users. It derives general quality requirements for the comprehensibility of the group jumping process and introduces a corresponding technique for two collocated users. The results of two user studies indicate that sickness symptoms are not affected by user roles during group jumping and confirm improved planning accuracy for the navigator, increased spatial awareness for the passenger, and reduced cognitive load for both user roles. Next, this thesis explores the design space of group navigation techniques in distributed virtual environments. It presents a conceptual framework to systematize the design decisions for group navigation techniques based on Tuckman's model of small-group development and introduces the idea of virtual formation adjustments as part of the navigation process. A quantitative user study demonstrates that the corresponding extension of Multi-Ray Jumping for distributed dyads leads to more efficient travel sequences and reduced workload. The results of a qualitative expert review confirm these findings and provide further insights regarding the complementarity of individual and group navigation in distributed virtual environments. Then, this thesis investigates the navigation of larger groups of distributed users in the context of guided museum tours and establishes three central requirements for (scalable) group navigation techniques. These should foster the awareness of ongoing navigation activities as well as facilitate the predictability of their consequences for all group members (Comprehensibility), assist the group with avoiding collisions in the virtual environment (Obstacle Avoidance), and support placing the group in a meaningful spatial formation for the joint observation and discussion of objects (View Optimization). The work suggests a new technique to address these requirements and reports on its evaluation in an initial usability study with groups of five to ten (partially simulated) users. The results indicate easy learnability for navigators and high comprehensibility for passengers. Moreover, they also provide valuable insights for the development of group navigation techniques for even larger groups. Finally, this thesis embeds the previous contributions in a comprehensive literature overview and emphasizes the need to study larger, more heterogeneous, and more diverse group compositions including the related social factors that affect group dynamics. ...
A Predictive Real Time Architecture For Multi User Distributed Virtual Reality
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Author : David J. Roberts
language : en
Publisher:
Release Date : 1996
A Predictive Real Time Architecture For Multi User Distributed Virtual Reality written by David J. Roberts and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
3d Interaction Techniques In Multi User Virtual Reality
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Author : André Kunert
language : en
Publisher:
Release Date : 2020
3d Interaction Techniques In Multi User Virtual Reality written by André Kunert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Multi-user projection systems provide a coherent 3D interaction space for multiple co-located users that facilitates mutual awareness, full-body interaction, and the coordination of activities. The users perceive the shared scene from their respective viewpoints and can directly interact with the 3D content. This thesis reports on novel interaction patterns for collaborative 3D interaction for local and distributed user groups based on such multi-user projection environments. A particular focus of our developments lies in the provision of multiple independent interaction territories in our workspaces and their tight integration into collaborative workflows. The motivation for such multi-focus workspaces is grounded in research on social cooperation patterns, specifically in the requirement for supporting phases of loose and tight collaboration and the emergence of dedicated working territories for private usage and public exchange. We realized independent interaction territories in the form of handheld virtual viewing windows and multiple co-located hardware displays in a joint workspace. They provide independent views of a shared virtual environment and serve as access points for the exploration and manipulation of the 3D content. Their tight integration into our workspace supports fluent transitions between individual work and joint user engagement. The different affordances of various displays in an exemplary workspace consisting of a large 3D wall, a 3D tabletop, and handheld virtual viewing windows, promote different usage scenarios, for instance for views from an egocentric perspective, miniature scene representations, close-up views, or storage and transfer areas. This work shows that this versatile workspace can make the cooperation of multiple people in joint tasks more effective, e.g. by parallelizing activities, distributing subtasks, and providing mutual support. ...
An Architecture For The Implementation And Distribution Of Multiuser Virtual Environments
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Author : Benjamin James Dischinger
language : en
Publisher:
Release Date : 2010
An Architecture For The Implementation And Distribution Of Multiuser Virtual Environments written by Benjamin James Dischinger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Client/server computing categories.
The Engineering Of Mixed Reality Systems
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Author : Emmanuel Dubois
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-10-21
The Engineering Of Mixed Reality Systems written by Emmanuel Dubois and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-10-21 with Computers categories.
An increasing number of systems are exploiting mixed reality but to date there are no systematic methods, techniques or guidelines for the development of such systems. In bringing together contributions on a broad range of mixed reality development issues this book provides a sound theoretical foundation for a disciplined approach to mixed reality engineering. Divided into three parts: interaction design, software design and implementation, the first section covers generic and specific mixed reality design elements and provides an overview of the design method; Part 2 addresses technical solutions for interaction techniques, development tools and a global view of the mixed reality software development process. The final section contains detailed case studies to highlight the application of mixed reality in a variety of fields including aviation, architecture, emergency management, games, and healthcare.
Cloud Vr
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Author : Huaping Xiong
language : en
Publisher: CRC Press
Release Date : 2020-11-12
Cloud Vr written by Huaping Xiong and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-12 with categories.
Based on the technical accumulation and practice of Huawei iLab in the Cloud VR field, this book systematically describes the advantages of Cloud VR technologies; technical requirements on clouds, networks, and terminals as well as solution implementation; Cloud VR experience evaluation baselines and methods; and current business practices. Cloud VR introduces cloud computing and cloud rendering to VR services. With fast and stable networks, cloud-based display output and audio output are coded, compressed, and transmitted to user terminals, implementing cloud-based VR service content and content rendering. Cloud VR has stringent requirements on bandwidth and latency, making it a proficient application for 5G and gigabit home broadband networks in the era of "dual G". As the first advocate of Cloud VR, Huawei iLab developed the first prototype of the Cloud VR technical solution, initiated the industry's first Cloud VR industry cooperation plan - VR OpenLab with partners - and incubated the world's first Cloud VR commercial project with China Mobile Fujian. Cloud VR: Technology and Application is the first official publication of Huawei iLab's research and practice achievements. It systematically and thoroughly introduces the Cloud VR concept, solution architecture, key technologies, and business practices and is of great value in academic and social applications. This book is easy to understand, practical, and suitable for VR vendors, VR technology enthusiasts, carriers, network vendors, cloud service providers, universities, and other enterprises and scientific research institutes.
Virtual Reality And Mixed Reality
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Author : Patrick Bourdot
language : en
Publisher: Springer Nature
Release Date : 2021-11-17
Virtual Reality And Mixed Reality written by Patrick Bourdot and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-17 with Computers categories.
This book constitutes the refereed proceedings of the 18th International Conference on Virtual Reality and Mixed Reality, EuroXR 2021, held in Valencia, Spain, in November 2021. The 8 full and 4 short papers were carefully reviewed and selected from 31 submissions. The conference presents contributions on virtual reality, mixed reality, augmented reality, collaborative virtual environment, tangible user interface, CAD model processing, and others. The papers are organized in the blocks named: Perception and Cognition; Interactive Techniques; Tracking and Rendering; Use case and User study; Short papers.
Vesir 6
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Author : Mejdi Eraslan
language : en
Publisher:
Release Date : 1999
Vesir 6 written by Mejdi Eraslan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Virtual reality categories.