video conferencing ppt

PRATEEK DOSHI(SVITS,INDORE)

In 1927, a video phone conversation with live video

transmission over telephone lines from Washington

D.C. to an auditorium in Manhattan was

demonstrated. In the sixties, a couple of different video phones were

developed which enabled video transmission over

telephone lines Unfortunately, these technologies never became well

accepted due to costs, limited availability, and restricted gain in communication

Video conferencing has certain advantages and

disadvantages

Advantage is that two or more persons can

communicate at a time

Disadvantage is that if there is no synchronization

between audio and video than that communication of

no mean

1.TELE-CUBICLES

2 .SHARED VIRTUAL TABLE ENVIORNMENT

3. VIRTUAL TEAM USER ENVIORNMENT.

similar to the basic type system but only

difference is uses multiple cameras and videos

only two user can communicate at a time .

3-D video reproductions of a given number

of participants at predefined positions in a

shared virtual environment.

The conferees are captured at each

terminal by a multiple camera setup.

Shared virtual table environment (SVTE)suggesting

spatial proximity and enabling a higher degree of

natural interaction and effective collaboration.

It is similar as shared virtual table system but only

difference is all the things in the background are

virtual except the images.

Virtual Team User Environments (VIRTUE) system is proposed that offers all benefits of the tele-cubicle approach and extends it towards an integration into shared virtual working spaces.

SEGDIS

HED

For a robust segmentation shadows at the table can usually not be avoided, even under optimal illumination conditions.

Accurate estimation of the Viewer’s position in the 3-D

space accomplished by the Head-Tracking Module

DIAGRAM

The challenging task of parallel real time processing of

multiple TV signal in full resolutions requires additional

equipment especially in-out video interface.

PCI based multiprocessor board called VPS equipped

with 4 tri media digital signal processor TM 1300.

Software works on C++ coding.