3D TV : How it all works

See the science behind the next visual dimension "3D"


How 3D TV works
To produce moving images that appear to be three dimensional, two separate images need to be captured at the same time. The cameras used are standard high definition cameras, which act like a pair of eyes and focus on the left and right angle of an image.

What each camera sees
Camera 1(on the left) focuses on the left angle of a moving image, while Camera 2 (on the right) focuses on the right angle of a moving image.

Image processing
The images from both cameras are adjusted so that colours match exactly and focus and depth are consistent to ensure smooth transitions between the two images. They are then converted into one 3D image.

Preparing for broadcast
A digital MPEG HD encoder is used to compress the 3D image into a hi-def digital image that can then be transmitted via satellite.

The 3D image is now just a few more steps away from being received through your 3D-ready television as the transmitter carries the process to satellite.
En-route to the television in your living room, the 3D signal is transmitted through designated satellites way up high.
Receiving the signal
The satellite beams the digital HD image to the Dish and HD box in your home.
HD set-top boxes already have the necessary processing power to be able to receive the 3D digital signals, store them and then deliver them to a 3D-ready television.
To view the 3D image the viewer needs to wear 3D glasses that prevent the left eye from seeing the image intended for the right eye and vice versa. Your brain does the rest, creating one combined picture with a level of depth that means it appears both.



Source - SKY TV