This document discusses 3D TV technology. It explains that 3D TV presents a three-dimensional view of a scene to viewers by employing stereoscopic techniques. The key components of a 3D TV system are acquisition of real-time video using synchronized cameras, transmission of the compressed video over networks, and 3D display using technologies like glasses-based or autostereoscopic displays. The future of 3D TV is envisioned to provide more realistic 3D viewing from any angle and include additional interactive features for a lively experience.

1. Presented by
Shammas ALI

2. ABOUT 3D TV
TV that employs techniques of 3D presentation, such as
stereoscopic nature and 3D display .
This presents a three dimensional view of the scene to the
viewers.
It is expexted to be the next revolution in TV history.
This requires a 3D TV system with real time acquisition,
transmission & 3D display of dynamic scenes.

3. Principle of 3D view
Human vision –each eye sees a slightly different
perspective of the same scene as eyes are 3 inches
apart.
The brain takes images from both eyes, merges them
together to form our 3D view.
Getting the 3D effect at home involves tricking the
brain into doing something similar with the images
that it gets from a TV set.
Figure out a way to precisely show a set of slightly
different images to each of your eyes.

5. Technical Overview
The whole system consists of mainly 3 blocks:
Acquisition Transmission Display

6. Acquisition
Consists of hardware synchronized cameras.
Capture live , uncompressed video streams & encode
them using standard MPEG coding.
Each camera captures progressive high-definition
video in real time.

7. Transmission
Compressed video is broadcast on separate channels
over a transmission network, which could be digital
cable, satellite TV or the Internet.
Gigabit Ethernet provides the connectivity between
decoders and consumers .
Gigabit Ethernet -high speed form of Ethernet (the
most widely installed LAN technology), that can
provide data transfer rates of about 1 gigabit per
second (Gbps).

9. Technologies to display 3D content
Basic requirement –to display offset images that are
filtered separately to the left and right eye.
Two strategies for this-
 With eyeglasses required to filter the separate offset
images to each eye.
 Without eyeglasses –let the lightsource split the images
directionally into the viewer’s eyes.

10. Common 3D display techologies
With eyeglasses:
 Anaglyphic method
 Polarization method
 Alternate-frame sequencing (with active shutter
lenses)
Without eyeglasses:
 Autostereoscopic displays (Auto 3D).

11. Anaglyphic
method
Uses Passive
red-cyan
lenses.

12. Polarization
method
Uses passive
polarized
lenses

13. Autostereoscopy
Any method of displaying stereoscopic images without the use
of special eyeglasses.
TV projects two different images that are picked up by the right
eye and the left eye - without having to wear any glasses.
Autostereoscopic display technologies include:
 lenticular viewing
 parallel barrier
 other methods

14. Parallax
barrier

15. Applications
Education, Training and Simulation.
Medicine and dentistry
Entertainment and game industry.
Military.
Market application.
Cultural Heritage.

16. Future of 3D TV
More realistic with view from any angle.
More features that will give a lively experience.
Japan plans to make the futuristic television a commercial
reality by 2020.
The targeted “virtual reality” television would allow
people to view high definition images in 3D from any
angle, in addition to being able to touch and smell the
object being projected upwards from a screen to the floor.
Such a TV could be useful in home-shopping programs,
medical industry,etc

17. Conclusion
Concept of 3D is known for decades . Stereoscopic 3D TV
is an old concept. Autostereoscopy is a new one to
develop efficiently. There is a need of more development
in this field. Improvement required in the color
reproduction of natural scenes on multi-view display. In
future, there will be a live television experience similar to
real time experience.

18. Thank you