UID29584
威望15
金钱63817
交易诚信度0
主题181
帖子3229
注册时间2003-1-22
最后登录2023-2-14
高级会员
   
交易诚信度0
注册时间2003-1-22
|

楼主 |
发表于 2016-7-6 13:34
|
显示全部楼层
本帖最后由 bluejd 于 2016-7-6 13:39 编辑
What this means for you
So what does all this mean exactly? First, understand that BT.2100 is not a new HDR format. Instead, it standardizes the many specifications that the industry has been working on for years and recommends the best approach.
BT.2100 specifies two options for HDR but PQ is already adopted by many players in the industry. Netflix and Amazon are already streaming in HDR10 and Dolby Vision (both based on PQ), and ITU’s standard will not affect that.
TV broadcasters on the other hand usually follow ITU’s recommendations and the important thing here is that HLG (Hybrid Log-Gamma) has been standardized under ITU’s BT.2100. HLG is a format that combines both SDR and HDR image information into the same signal. In a HLG signal HDR TVs can extract the necessary HDR image information whereas SDR TVs will ignore it.
Several players of the broadcast industry have backed HLG as a way to enable HDR on TV channels since broadcast distribution networks have constrained bandwidth capacity. TV manufacturers have on recent occasions demonstrated HLG HDR signals reproduced on current HDR TVs, suggesting that it may be possible to firmware upgrade existing TVs to support HLG. In May 2016, LG and SES Astra demonstrated a live HLG HDR satellite feed on LG’s 2016 OLED TVs. It is up to the specific manufacturer to issue this firmware update.
It is also worth noticing that ITU has included 1080p resolution in its HDR recommendation, meaning that TV broadcasters can choose to use HDR on HD channels.
With BT.2100 in place, it seems plausible that the TV broadcast industry will start adopting HDR soon.
|
|