Effective Solution for Outside Sports Live UHDTV HDR/HDTV SDR Simultaneous Production

摘要

Tokyo will host the 2020 Summer OlympicrnGames. As the public broadcaster of the hosting nation,rnNHK is keen to make full use of Japan’s signature advancedrntechnologies to provide audiences around the world withrnthe ultimate viewing experience. UHD live sports programrnproduction is the means of achieving this. 4K and 8K UHDrnbroadcasting service will commence in Japan in Decemberrn2018. NHK has been carrying out UHD-HDR live sportsrnproduction as a means of improving the quality of programrncontent, while simultaneous UHD-HDR/HD-SDR livernproductions are being constantly tried out for the sake ofrnboosting efficiency. It is possible to take advantage of HDRrnto provide more natural and realistic images in outsidernsports event. However, simultaneous SDR productionrnrequires considerable knowledge. Moreover, color gamutrnconversion must also be simultaneous, given that UHD isrnBT.2020, while HD is BT.709. NHK will be providing 8KHDRrnproductions with the Olympic Broadcasting Servicesrnat PyeongChang Winter Olympics in February 2018.rnSimultaneous 8K-HDR and 4K-SDR production will bernrequired for the 8K-HDR broadcasts in Japan and in orderrnto distribute international signals for world broadcaster inrnthe form of down-converted 4K-SDR(BT.709) signals.rnThis presentation will propose a method of HDR/SDRrnsimultaneous production by featuring a number key pointsrnconcerning the effective outside program productionrntechniques and facilities NHK has achieved throughrnnumerous programs.