Collaborative Virtual Reality Environment
Click here to load reader
-
Upload
deepak-singh -
Category
Engineering
-
view
1.472 -
download
5
Transcript of Collaborative Virtual Reality Environment
![Page 1: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/1.jpg)
Collaborative VR Environment
Deepak Kumar Singh-IHC2013004Sisir Kumar Sarkar-IHC2013005
Indian Institute Of Information Technology- Allahabad
1
![Page 2: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/2.jpg)
Virtual Reality• Virtual Reality refers to a high-end user interface that
involves real-time simulation and interactions through multiple sensorial channels.
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
2
![Page 3: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/3.jpg)
Virtual Reality Environment• A computer generated world with which user can interact is
called Virtual Environment• This interaction can vary from looking around to interactively
modifying the world.
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
3
![Page 4: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/4.jpg)
Collaborative VR Environment• CVEs, are used for collaboration and interaction of possibly
many participants that may be spread over large distances. • The applications are usually based on the shared virtual
environment.
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
4
![Page 5: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/5.jpg)
CVE Architecture[1]
5
![Page 6: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/6.jpg)
1. Centralized primaries
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
6
![Page 7: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/7.jpg)
Centralized primaries-
• All primary replicas of each data item resides on the same computer called server.
• Advantages: complete server control over the scene• Disadvantages: performance is limited by the server computer
7
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
![Page 8: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/8.jpg)
2. Distributed primaries
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
8
![Page 9: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/9.jpg)
Distributed primaries
• Primary replicas are distributed among the computers.
• Advantages: high performance and scalability• Disadvantages: difficult programming model, weaker
consistency
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
9
![Page 10: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/10.jpg)
3. Data ownership
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
10
![Page 11: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/11.jpg)
Data ownership
• Primaries are allowed to migrate among the computers. This approach is often called system with transferable data ownership.
• Advantages: more flexibility compared to Distributed Primaries• Disadvantages: high amount of ownership requests may limit
the system performance
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
11
![Page 12: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/12.jpg)
4. Active replication
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
12
![Page 13: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/13.jpg)
Active replication
• Active replication uses peer-to-peer approach while all replicas are equal. Usually, atomic broadcast is used to deliver updates to all of them, thus they are kept synchronized.
• Advantages: complete scene synchronization (equal scene content on all computers)
• Disadvantages: the performance is limited by the slowest computer in the system
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
13
![Page 14: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/14.jpg)
Popular Collaborative VR Environment[2]
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
14
![Page 15: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/15.jpg)
Social entertainment
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
15
![Page 16: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/16.jpg)
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
Education/Training
16
![Page 17: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/17.jpg)
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
badBuilt environment: architectural walkthroughs
17
![Page 18: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/18.jpg)
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
Medicine: surgery simulation
18
![Page 19: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/19.jpg)
Technology used
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
19
![Page 20: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/20.jpg)
Binocular Omni-Orientation Monitor (BOOM)
- Head-coupled stereoscopic display device.- Uses CRT to provide high-resolution display.- Convenient to use.- Fast and accurate built-in tracking
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
20
![Page 21: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/21.jpg)
Cave Automatic Virtual Environment (CAVE)
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
21
![Page 22: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/22.jpg)
VRML(Virtual Reality Modeling Language)
- Standard language for interactive simulation within the World Wide Web.
- Allows to create "virtual worlds" networked via the Internet and hyperlinked with the World Wide Web.
- Aspects of virtual world display, interaction and internetworking can be specified using VRML without being dependent on special gear like HMD.
• VR models can be viewed by Netscape or IE with a browser plug-in. Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
22
![Page 23: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/23.jpg)
Advantages :
Save time
NO to Loneliness
Work in a Team
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
23
![Page 24: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/24.jpg)
Disadvantage :
Initial cost is High
Increases Unemployment
Prolong usage may cause Psychological or Mental Stress
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
24
![Page 25: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/25.jpg)
Recent Discoveries[3]
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
25
![Page 26: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/26.jpg)
DIVE[4]
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
26
![Page 27: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/27.jpg)
PlayStation MOVE[5]
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
27
![Page 28: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/28.jpg)
Research Group
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
28
![Page 29: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/29.jpg)
1.Advanced VR Research Centre (AVRRC) Loughborough University, UK http://www.lboro.ac.uk/research/avrrc/
2. National Center for Supercomputing Applications (NCSA) [6]
-Argonne National Laboratory -Alliance Center for Collaboration, Education, Science and Software (ACCESS)
3.Immersive Interaction Group http://iig.epfl.ch/4.Swiss Federal Institute of Technology http://archiveweb.epfl.ch/vrlab.epfl.ch/research/research_index.html5.University Of Minnesota
http://vr.design.umn.edu/6.Stanford University(Virtual Human Interaction Lab)
http://vhil.stanford.edu/
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
29
![Page 30: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/30.jpg)
References1. http://en.wikipedia.org/wiki/Collaborative_virtual_environment2. http://
www.vrs.org.uk/virtual-reality-environments/collaborative.html3. Collaborative virtual environments: going beyond virtual reality,
Roberta L. Gomes, Guillermo J. Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on (Volume:2 )
4. https://www.durovis.com/dive.html5. http://us.playstation.com/ps3/playstation-move/6. http://vr.coe.ecu.edu/rave/RAVEtext.htm
Indi
an In
stitu
te O
f Inf
orm
ation
Tech
nolo
gy- A
llaha
bad
30
![Page 31: Collaborative Virtual Reality Environment](https://reader038.fdocuments.us/reader038/viewer/2022102323/54c289ce4a7959717b8b45d3/html5/thumbnails/31.jpg)