NHK Broadcasts 8K Super Hi Vision For First Time

'Beauties A La Carte" NHK's first

HONG KONG – Japanese public broadcaster NHK has for the first time transmitted video signals in 8K definition over a significant distance.

The successful experiment – broadcasting from Hitoyoshi to a receiving station 27 km away – is a major step forward with its proposed 8K Super Hi Vision broadcasting operations.

The company has been experimenting with 8K since the 1980s and has said that it plans to start broadcasting some sports, documentaries and special events in the format from 2016.

It has built special cameras and focusing devices and previously experimented recording the opening and closing ceremonies of the London 2012 Olympic Games. In Cannes last year the company showed off “Beauties A La Carte,” (pictured) a 27-minute short film that was the first narrative film shot using the new technology.

Super Hi Vision uses 33 million pixels per frame and offers a resolution higher than recordings using IMAX 70mm.

But getting optimal use from the new technology would require TV sets significantly larger than are currently available. And some analysts suggest that if it is ever adopted widely other factors such as higher frame rate, better sound and color might be more influential than simply providing better resolution alone.

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  1. Jeffry L. Johnson says:

    According to a 1993 IMAX article, the 70mm IMAX film negative frame resolves 86.4 million pixels.The 70mm IMAX film print frame resolves 21.6 million pixels.

    Preprint No. 135-22
    IMAX HD — A HIGH DEFINITION MOTION PICTURE SYSTEM

    Paul Panabaker, Albert Darimont, Michael Gibbon, Ian Maxwell, and William Shaw
    Imax Corporation
    Mississauga, Ont., Canada

    presented at the
    135th SMPTE Technical Conference
    October 29 – November 2, 1993
    Los Angeles Convention Center, Los Angeles, Calif.

    Appendix 1 – Information Content of Various Display Formats

    [snip]

    Format: 70 mm / 15 perf IMAX
    Film Dimensions:
    H (mm): 69.6
    V (mm): 48.5
    Area (mm^2): 3376
    Film Negative Pixels (a):
    H: 11136
    V: 7760
    Total Pixels (HxV): 86.4 M
    Viewable Pixels (b):
    H: 5568
    V: 3880
    Total Pixels (HxV): 21.6 M
    Field/Frame (rate/sec): 24
    Bandwidth (Mbytes/sec)(c): 1555

    [snip]

    Notes:
    a) assuming 80 lp/mm resolvable information on film negative; video data from: Carlson, SMPTE Journal Dec. 1984
    b) assuming 40 lp/mm resolvable information on screen; video data from: Carlson, SMPTE Journal Dec. 1984, HDTV is NHK std.
    c) bandwidth = (total viewable pixels x frame rate x 24 colour bits/pixel) / 8 bits/byte

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