A Peer-to-Peer Multicast Architecture for Supporting Collaborative Virtual Environments (CVEs) in Medicine

2012 ◽  
Author(s):  
Paulo Vinicius F. Paiva ◽  
Liliane S. Machado ◽  
Jauvane C. de Oliveira
Keyword(s):  
Virtual Environments ◽  
Peer To Peer ◽  
Collaborative Virtual Environments

scholarly journals Editors’ Note

2017 ◽  
Vol 8 (2) ◽  
pp. 1
Author(s):  
Alberto Raposo ◽  
Cléber Corrêa
Keyword(s):  
Virtual Reality ◽  
Human Factors ◽  
Virtual Environments ◽  
Peer To Peer ◽  
Medical Procedures ◽  
Conference Program ◽  
Special Issue ◽  
Collaborative Virtual Environments ◽  
Computing Systems

It is our pleasure to introduce you the second issue of JIS in 2017. This issue contains six papers of the Special Issue of the 15th Brazilian Symposium on Human Factors in Computing Systems (IHC 2016). As we have been doing since IHC 2014, the best papers of the conference are invited to submit extended versions to a special issue of JIS, guest edited by the conference program chairs. In the current publication, our guest editors are Profs. Carla Leitão, from Pontifícia Universidade Católica - Rio de Janeiro (PUC-Rio), and Luciana Salgado, from Universidade Federal Fluminense (UFF), who we thank a lot for the dedication in the preparation of this issue. We invited you to read their editorial in the following.We also have in this issue an original paper by Paulo Paiva, Liliane Machado, Jauvane de Oliveira, and Ronei de Moraes, entitled “Networking Issues for 3D Medical Collaborative Virtual Environments: Design and Applications”. The authors discuss specific networking issues for Collaborative Virtual Environments (CVEs) applied to the simulation of medical procedures. They designed, developed, and validated a peer-to-peer multicast architecture on the collaborative module of the CyberMed Virtual Reality framework, aiming at providing better network scalability.Finally, we would like to thank the authors and reviewers that contributed to JIS. At the end of the issue we acknowledge the reviewers that contributed to JIS in 2015, 2016, and 2017.JIS Editorial Board is looking forward to receiving your contributions. We hope you enjoy reading this issue!

scholarly journals Networking Issues for 3D Medical Collaborative Virtual Environments: Design and Applications

2017 ◽  
Vol 8 (2) ◽  
pp. 1
Author(s):  
Paulo V. F. Paiva ◽  
Liliane dos S. Machado ◽  
Jauvane C. de Oliveira ◽  
Ronei M. de Moraes
Keyword(s):  
Virtual Environments ◽  
Real Time ◽  
Peer To Peer ◽  
Medical Procedures ◽  
Collaborative Virtual Environments ◽  
Multicast Protocol ◽  
Design And Implementation ◽  
Real Time Applications ◽  
Level Of Significance ◽  
Network Scalability

Collaborative Virtual Environments (CVEs) are Virtual Reality (VR) systems and can simulate medical procedures such as surgeries performed by a group of remote users which can interact with one another through the simulation in real-time, with the aid of a network such as the Internet.Therefore, it is important to note that research on CVE-specific networking issues allows us to better understand the requirements for real-time applications. This paper discloses design and implementation issues of a peer-to-peer multicast architecture on the collaborative module of theCyberMed VR framework, aiming at providing better network scalability, as well as it shows as results, some developed applications as validation. Finally, we compared the performance of the newly implemented peer-to-peer multicast architecture with the peer-to-peer unicast previously existent with simulated models designed with OPNET Network Modeler and R statistical software. As result of our experiments, the null hypothesis was rejected (p = 2.2e-16, level of significance = 5%) confirming what we expected about the behavior of CyberMed’s multicast protocol.

LIRKIS Global Collaborative Virtual Environments: Current State and Utilization Perspective

2020 ◽  
Vol 11 (1) ◽  
pp. 99-106
Author(s):  
Marián Hudák ◽  
Štefan Korečko ◽  
Branislav Sobota
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Smart Devices ◽  
Collaborative Virtual Environments ◽  
Web Based ◽  
Smart Client ◽  
Input Devices ◽  
User Input ◽  
History Of ◽  
Shared Virtual Environments

AbstractRecent advances in the field of web technologies, including the increasing support of virtual reality hardware, have allowed for shared virtual environments, reachable by just entering a URL in a browser. One contemporary solution that provides such a shared virtual reality is LIRKIS Global Collaborative Virtual Environments (LIRKIS G-CVE). It is a web-based software system, built on top of the A-Frame and Networked-Aframe frameworks. This paper describes LIRKIS G-CVE and introduces its two original components. The first one is the Smart-Client Interface, which turns smart devices, such as smartphones and tablets, into input devices. The advantage of this component over the standard way of user input is demonstrated by a series of experiments. The second component is the Enhanced Client Access layer, which provides access to positions and orientations of clients that share a virtual environment. The layer also stores a history of connected clients and provides limited control over the clients. The paper also outlines an ongoing experiment aimed at an evaluation of LIRKIS G-CVE in the area of virtual prototype testing.

Visualising and populating the Web: Collaborative virtual environments for browsing, searching and inhabiting Webspace

1997 ◽  
Vol 29 (15) ◽  
pp. 1751-1761 ◽  
Author(s):  
Steve Benford ◽  
Dave Snowdon ◽  
Chris Brown ◽  
Gail Reynard ◽  
Rob Ingram
Keyword(s):  
Virtual Environments ◽  
Collaborative Virtual Environments ◽  
The Web

Human interactions and personal space in collaborative virtual environments

2010 ◽  
Vol 14 (4) ◽  
pp. 229-240 ◽  
Author(s):  
Nasser Nassiri ◽  
Norman Powell ◽  
David Moore
Keyword(s):  
Virtual Environments ◽  
Personal Space ◽  
Collaborative Virtual Environments ◽  
Human Interactions
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