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4K TELEVISION VIA THE INTERNET AND SUPER HIGH DEFINITION

NTT WEST, a Japanese telecoms company is carrying out tests to try to prove 4K-resolution video can be streamed over the internet to television set-top boxes.

A new video compression standard is being used to reduce the amount of data that needs to be transmitted and allows broadcasters to transmit material using much less data than would otherwise be required while minimising the loss of picture quality. Instead of sending data describing each pixel of each frame as if it were a standalone entity, a variety of algorithms are used to analyse how colour is distributed across each image and what changes occur between each frame. Picture information that doesn’t change is then dropped and not transmitted redundant information discarded, providing instead only the information needed to reconstruct a sequence based on an understanding of how each pixel and frame are related to each other.

Japan plans to become the first country to broadcast 4K programming over satellite from 2014, in time for the football World Cup.

4K broadcasts offer four times the amount of detail as 1080 high-definition content and has been called super high definition and if that isn’t enough research is now going ahead on 8K or ultra high definition. How long will it be before we have Huw Edwards sitting in our lounges giving us the latest news?


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