3-D movies via Internet and satellite

3-D movies via Internet and satellite

Blockbusters like Avatar, UP or Toy Story 3 will bring the 3-D into home living rooms, televisions and computers. There are already displays available and the new Blu-Ray players can already play 3-dimensional movies based on MVC. The first soccer games were recorded stereoscopically at the Football World Championships in South Africa. What is missing is an efficient form of transmission.

The problem is the data rate mandatory by the movies in spite of fast Internet and sat-ellite links. 3-D movies have higher data rate requirements than 2-dimensional movies since at least two images are needed for the spatial representation. This means that a 3-D screen has to show two images one for the left and one for the right eye.

Scientists at the Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut, HHI in Berlin, Gera number of have already come up with a compression technique for movies in especially HD quality that squeezes movies while maintaining the quality: the H.264/AVC video format. What H.264/AVC is for HD movies, Multiview Video Coding (MVC) is for 3-D movies. The benefit is reducing the data rate used on the transmission channel while maintaining the same high-definition quality.

Videos on the Internet have to load quickly so that the viewer can watch the movies without interruptions. Thomas Schierl is a scientist at the HHI in Berlin and he explains that MVC packs the two images needed for the stereoscopic 3-D effect so that the bit rate of the movies is significantly reduced. These 3-D movies are up to 40 percent smaller. Thomas Schierl and colleagues are working to establish the MVC codec for television transmission over satellites or the Internet. New TV sets will start off by only playing 3-D movies from the Blu-Ray disc that is now coming into the third dimension. The next step to bring 3-D into living rooms will be made possible via broadcast or IPTV channels running via DSL or cable.........