Japan test 4K TV
Japanese telecommunications companies have started online testing 4K signals, which they claim is four times better than HD. Soon we should have evidence that video with 4K resolution can be streamed or transmitted over the Internet to the home television receiver, the so-called “set-top boxes.”
The Japanese telecommunications company “NTT West“ began testing new video compression standards, which will last until Friday. It is believed to be the first of its kind in the world. It is claimed that this standard provides four times the picture detail of 1080p high-definition content.
It also reduces the amount of data that will allow broadcasters to send a signal with much less data while minimizing the loss of image quality. Specifically, instead of sending the data describing each pixel of each frame as a separate entity, at 4K using a wide range of algorithms for analyzing how the colors distributed on each image that changes occur between each frame.
This allows redundant data to be discarded, providing only the information needed to reconstruct the sequence based on the understanding that every pixel and frame are connected with each other.
In January, the International Telecommunication Union (ITU), an agency of the United Nations approved a new format, emphasizing that it should meet all the needs of broadcasters over the next decade. Although the ultra-high-definition 4K TVs have hit the market, their content is “deficient” because most owners have to rely on the ability to upgrade existing equipment HD signal.
Otherwise, Japan plans to become the first country to broadcast 4K program via satellite, from in 2014. years, from about the football World Cup. Successful transmission of video and ultra-high definition via the internet will open the door to other services.
Source: http://www.thesciencenews.info/2013/06/japan-test-4k-tv.html
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