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Anyone feeling an inordinate amount of pride at a newly acquired HD TV might want to stop reading now to avoid the nauseous sensation that hearing about Japan’s next-generation high-definition TV system is sure to induce.
Researchers at NHK (Japan’s public broadcaster) recently wheeled out their Super Hi-Vision (SHV) system to astonished journalists in Tokyo. As Martyn Williams reports, SHV blows current high definition clean away with a knockout 4,320 horizontal and 7,680 vertical lines.
Martyn says, “That’s four times the horizontal and vertical resolution of current HD TV or, put another way, a single Super Hi-Vision image is equivalent to 16 tiled HDTV screens.” Gulp…
The impressive numbers don’t end there – an uncompressed SHV stream weighs a massive 24Gbps, which is impossible to broadcast. Accordingly, NHK has used MPEG-4 AVC/H.264 to squeeze the data into a 128Mbps stream that’s still six times fatter than current HD broadcasts.
Although there’s no word on when SHV will become a working broadcast standard, NHK’s history of innovation (it developed high-definition video in 1969) means we shouldn’t be surprised if we’re all shopping for SHV-compatible TV sets within the next 10 years.
(Crossposted to Tech.co.uk)
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12:56 AM 
Mark Hiratsuka •
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