How a new HD technology called Super Hi-Vision (aka 8K4K) is starting to make its mark
A TV technology 16 times more powerful than HDTV.
Called Super Hi-Vision (and often known as 8K4K or Ultra HD), the system has been developed by Japan's national broadcaster, NHK, and the same engineers who worked on the original Hi-Vision (hi-def) tech in the 1980s.
NHK's Super Hi-Vision Ultra high-definition TV system – to give its full name – is built around images with a 7,680 x 4,320 pixel resolution, equating to roughly 33 megapixels. The current pinnacle of hi-def, Full HD, measures just over two megapixels.
It's a huge jump, but there's more. Alongside these super-sharp images is a 22.2-channel audio system that uses banks of speakers on three levels, strung across the entire length of the 10m x 5m screen installed at NHK's Tokyo labs.