4K Television Streams Got Tested in Japan for their Streaming over Internet
In order to prove that 4K – resolution video can also be streamed to television set to boxes via the internet, a Japanese company, NTT west is carrying out tests. The company is making several trails to prove it. The trials which are one of its kinds will run till Friday.
In comparison to 1080p high definition content, the definition offered by 4K broadcasts is much high.
Video compression standard being used to run the trails allows the broadcasters to reduce the amount of data transmission which otherwise would be required to minimize the picture quality loss. For video transmission the broadcasters are using various algorithms to analyze the ways by which different colors distribute across the images. They are also analyzing the change which occur between each frame while video transmission. The trails relate to understanding the relation of pixels and frame with each other.
In January this year, a UN agency known as International Telecommunication Union or ITU approved HEVC standard. The HEVC stands for high efficiency video coding. It is the H.265 broadcasting codec. Till now even the Freeview HD, the online video clips and Sky HD Satellite services in countries like UK use the H.264/ MPEG -4 codec. However; using the H.265 codec the 4K and 1080p videos can be streamlined using lesser bit rate. The bit rate at which streamlining occurs by H.265 codec is nearly half of the bit rate as in H.264.
As per ITU agency the H.265 code is sufficient to meet the next decade broadcasting needs.
There is a near possibility that in the year 2014 by the time football World cup will be organized; Japan would successfully broadcast even the 4K programs over satellite. This technology would lay the path for many other services. As per the prediction by Jon Payne, who is a broadcast analyst at consultants HIS, the new technology could trigger a competition between the 4K video subscription packages with the traditional pay – TV operators.
Source – bbc.co.uk