video conferencing ppt
Post on 14-Oct-2014
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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.
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