Page 153 - Intelligent Communication Systems

I 32 INTELLIGENT COMMUNICATION SYSTEMS
Exhibition: A museum or an exhibition hall can be created and displayed ste-
reoscopically. A viewer can enter it, walk through it, and appreciate paint-
ings, statues, or pottery.
Architecture and civil engineering: The architecture of, say, a city hall or an
art museum can be designed in 3D and displayed stereoscopically, allowing
the viewer to see the architecture, enter it, and walk through it.
Science and academia: The flow of a fluid can be visualized and displayed
stereoscopically. VR technology will contribute significantly to science and
the academic world.
Aviation, space travel, and railway: Training for an operator can be performed
in a virtual space.

11.6 TELESENSATION

Telesensation combines VR with telecommunications, allowing realistic sensa-
tions to be transmitted to destination. Through Telesensation, an image of a scene
from a natural environment or images of humans at different sites are transmitted
through communication links to a viewer and displayed stereoscopically on screen.
The viewer can enter the scene, walk through it, and touch objects displayed there.
Figure 11.2 shows a diagram of Telesensation. The scene of a street in Germany
is taken by a camera and transmitted via broadband ISDN networks to Japan, where
the scene is reproduced and displayed stereoscopically on screen by using VR. A
viewer in Japan can enter the street scene and walk through it, can go to the
entrance of a building, open the door, and go inside, and can even go behind the
building and see what it looks like from there.

11.7 TYPES OF TELESENSATION

There are three main types of Telesensations: television-type service, interactive-
type service, and teleconference service.

Television-type service: An image of a scene from a remote location is
transmitted through communication links to a viewer and displayed
stereoscopically on screen. The viewer can enter the scene, walk through
it, and enjoy the sights. This type of service may use a 3D video theater or
a video mural (see Figure 11.3).
Interactive-type service: An image of a scene from a remote place is taken by
camera, transmitted via a communication link, and displayed stereoscopi-
cally in a virtual space to a viewer. The viewer can enjoy seeing the scene
and walk through it, can touch or handle objects displayed in the virtual
space, and can see the objects from different perspectives. This type of
service will include teleshopping (see Figure 11.4), a tele-existence service,
and telesimulation, such as a simulated golf game.