TELE-IMMERSION &

INTERNET2

PRESENTED BY

Geenas GS

S7, ECE

Roll.No: 7215

CONTENTS Introduction

INTRODUCTION Tele-immersion may be the next major

development in information technology. Using tele-immersion, you can visit an individual across the world without stepping a foot outside.

Tele-Immersion is a technology by which you’ll interact instantly with your friend on the other side of the globe through a simulated holographic environment.

This technology, which will come along with Internet2, will change the way we work, study and get medical help.

WHAT IS TELE-IMMERSION ? Tele-Immersion (TI) is defined as the

integration of audio and video conferencing, via image-based modeling, with collaborative virtual reality

New medium that enables a user to share a virtual space with remote participants.

CONTD.. Immersion in general means a psycho-

physical condition which gives the user the illusion that he acts in an environment which is different from the real one.

It combines the display and interaction techniques of virtual reality with new computer-vision technologies.

HISTORY In1965 Ivan Sutherland,

proposed the concept of the “Ultimate Display”.

“Ultimate Display” described a graphics display that would enable the user to experience a completely computer rendered environment.

This was the beginning of active research into modern graphics, virtual reality and its forerunner - tele-immersion, which was to come later.

Ivan Sutherland

FIRST FEEL OF TELE-IMMERSION The tele-immersion concept was for the first

time demonstrated in May 2000 when three geographically distributed tele-immersion sites were virtually interconnected.

These sites were: Advanced Network & Services (Armonk, New -York;

Dr. Amela Sadagic), University of Pennsylvania (Philadelphia; Dr. Jane

Mulligan) and University of North Carolina (Chapel Hill; Jaron

Lanier).

CONTD.. Two participating sites had the role of

acquisition sites (AN&S & University of Pennsylvania) for 3D scene acquisition.

The third one (UNC) was a reconstruction

site for reconstruction and display of remote, captured scenes.

Prototype of tele-cubicle at UNC (May 2000) A guest taking part in the tele-immersive session at

UNCLeft : Philadelphia & right : Armonk( New-York )

SCIENCE OF TELE IMMERSION Tele-Immersion has an environment called

TIDE(Tele-Immersive Data exploration Environment)

The goal of TIDE is to employ Tele-Immersion techniques to create a persistent environment in which collaborators around the world can engage in long-term exploration and analysis of massive scientific data-sets.

When participants are tele-immersed, , they are able to see and interact with each other and objects in a shared virtual environment. Their presence will be depicted by life-like representations of themselves (avatars)

CONTD

The environment will persist even when all the participants have left it.

Participants may even leave messages

for their colleagues who can then replay them as a full audio, video and gestural stream.

CONTD..

All users are separated by hundreds of miles but appear collocated able to see each other as either a video image or as a simplified virtual representation (commonly known as an avatar).

Avatars are generated by real-time, image capture, and modeling techniques.

Each avatar has arms and hands so that they may convey natural gesture such as pointing at areas of interest in the visualization.