New standard sets baseline for HDR on PC displays

As video enthusiasts will tell you, just saying a display is capable of high dynamic range doesn’t say much — you need to know how well it handles HDR. And that’s crucial for PC monitors , where the accuracy and intensity of the picture can make all the difference when you’re playing a game or editing video. The team at VESA wants to do something about it. They’ve unveiled an open standard, DisplayHDR, that sets the baseline levels for HDR quality on PC screens. There are three tiers, each determined by the maximum brightness. DisplayHDR 400 is aimed more at laptops, where power and size tend to limit what’s possible. A monitor meeting this spec has to reach a brightness of 400 nits, offer true 8-bit color (at 95 percent of the BT.709 gamut), provide global display dimming and support the HDR10 format. That may not sound like much, but it’s 50 percent brighter than typical laptops, many of which ‘cheat’ to get 8-bit color through dithering. DisplayHDR 600 ramps up the brightness to 600 nits while requiring improved black levels and 99 percent BT.709 color accuracy (plus 90 percent of DCI-P3). The most advanced monitors can aim for DisplayHDR 1000, which supplies at least 1, 000 nits and even deeper blacks. The spec is limited to LCD monitors for now, although there are hopes to adapt it to OLED displays and other technology. And you won’t have to wait long to see it in use — VESA is promising DisplayHDR-rated products at CES in January. This doesn’t guarantee that you’ll be blown away by a Netflix movie or an HDR-enabled game, but it should discourage companies from pulling a fast one by slapping an HDR label on a display that doesn’t do the technology justice. Also, it could improve the adoption of HDR among your preferred hardware makers. If they know what to shoot for, they may be more likely to add HDR support instead of holding back out of uncertainty. Source: VESA

Read More:
New standard sets baseline for HDR on PC displays

YouTube now has over one billion auto-captioned videos

Over a billion videos on YouTube are accessible to viewers who are hard of hearing or completely deaf, thanks to the video platform’s automated captions . YouTube product manager Liat Kaver has announced the milestone number in a blog post, where he also talked about how hard it was growing up as a kid who’s hard of hearing and having very little access to closed captions. After his team launched automated captions in 2009, they started concentrating on making it more available and improving its accuracy. Kaver said they made automated captions more available to YouTubers by combining Google’s automatic speech recognition technology with the YouTube caption system. They then achieved a 50 percent leap in accuracy — for English captions, at least — by improving the service’s machine learning algorithms and expanding its training data. We all know how funny caption fails can be, but people who have no other way of knowing what was actually said would end up missing bits of information. In the image above, you’ll see an example comparing the service’s old (left) and current (right) models. Going forward, the company aims to improve the accuracy of the 10 other languages its caption tech supports. Kaver is encouraging YouTube creators to chip in and review the accuracy of machine-generated captions for their videos, as well. After all, the more data they have on their hands, the easier it’ll be to improve the technology. Source: YouTube

View article:
YouTube now has over one billion auto-captioned videos