Teleimmersion Main Ppt

BY P.V.RAJA SHEKAR 06S11F0031 MCA FINAL YEAR

CONTENTS  WHAT IS VIRTUAL REALITY  WHAT IS HOLOGRAMIC IMAGE  WHAT IS TELE IMMERSION  APPLICATIONS  ADVANTAGES  DISADVANTAGES  CONCLUSION  REFERENCES

Virtual Reality  Definition:

A computer generated, ‘immersive’ (or wide field), multi-sensory information program which tracks a user in real time.

TELE IMMERSION Tele-Immersion

is the synthesis of Virtual Reality, video conferencing, and advanced computation

TI setup

Hardware and software technologies needed: -

3D real-time system for acquisition of dynamic, real objects (Upenn) static scene acquisition (UNC) rendering and stereo display architecture (UNC) high precision headtracking system (UNC) modeling and manipulation with virtual objects (Brown) multi-person interaction and collaborative architecture (Brown)

Camera arrangement

C dCa2 3 da ta ta

PC1

C 2 C 1

C 3

PC3

C 4

C5 data C4 data

PC4

6 C 5ta C a da at d

PC2

C4 data C3 data

C 5

PC5

C 6 C 7

Characteristics of Tele-Immersion Flows BW

Latency Sensitive

Jitter Sensitive

Reliability Reqrmnt

Burstiness

Packet Size

Protocol

Avatar (virtual representation)

Low

Y

Y

Low

Constant

Small

RTP / UDP

Audio conference

Med

Y

Y

Low

Constant

Med

RTP / UDP

Video conference

High

Y

Y

Low

Constant

Large

RTP / UDP

Realtime state updates

Low

Y

Y

Med

Short bursts

Small

FEC

Non-realtime state updates

Low

N

N

High

App dependent

Small

TCP

Small bulk data (image files)

Med

N

N

High

Medium bursts

Large

TCP/CPTCP

Large bulk data (raw data sets)

High

N

N

High

Very long bursts

Large

PTCP / RBUDP

Streaming bulk data (high quality audio/video/bit map/polygons)

High

Y

N

High

Long bursts

Large

SRBUDP / AFEC

Applications: - preoperative planning - tele-diagnostics - tele-assisted surgery - advanced surgical training

Other: - tele-meetings - tele-collaborative design - computer supported training and education - 3D interactive video

- entertainment

Advantages  Eliminates

time.

the barriers of space and

Conclusion 

In order to encourage applications, a better level of communication among network engineers, application programmers, and scientists needs to be supported. The nomenclature and styles of networking access and engineering are essentially totally disjoint from the way application programmers and computational scientists write programs and use computers. Security and Acceptable Use Policy (AUP) considerations are typically idiosyncratic at computer sites, yet need to be uniform, or at least interoperable, for networks to support applications.