International
. After several years of research, public broadcasting corporation NHK seems to have solved the current limitations of high-definition 3D video. The announcement was made after its Science and Technology Research Laboratories in Japan demonstrated that through a dual-sequence process in which broadband is combined with streaming, it is possible to achieve this breakthrough.
It is a process called Hybridcast, in which through terrestrial broadcasting and Internet connection, separately, HD transmission of 3D video for television sets at home is achieved. Currently, the most common methods used for most 3D broadcasts are side-by-side and first- and bottom-up regimes. Both compress the two images by 50% (in terms of the amount of visual data) and store the frames in HD video and then decompress it on a 3D compatible TV.
With the new technology, developed in collaboration with Nippon Telegraph and Telephone (NTT), video for one eye, left or right, is transmitted to a TV at home via radio waves, and video for the other eye, is transmitted over a broadband connection; resulting in an equivalent full HD video transmission for each of the eyes. Thus, the basis of the technology is the use of the PTS (time presentation seal) to synchronize the synthesis of data that is transmitted through different channels.
According to NHK engineers, this new transmission method had to overcome a synchronization problem. "Normally the signals transmitted through an Internet connection generate delay with respect to the waves, so here it took time to align them perfectly."
For the demonstration, NHK used Panasonic's TH-P54VT2 54in 3D TV model, but it's unclear whether engineers reconfigured the TV in a certain mode.

