NASA Launching 4K TV Channel
An anonymous reader writes: NASA has announced that it's partnering with Harmonic to launch a new TV channel that delivers video at 4k resolution (4096x2160). The channel is called NASA TV UHD, and it'll go live on November 1. Content will be generated by cameras at the International Space Station and on other NASA missions, as well as any 4K content they can remaster from old footage.
That sounds great, but DirecTV still doesn't even carry NASA TV in HD.
I bet there a good market for DVRs (or components like tuner cards) and cybercafés there
4k and UltraHD are not the same format!
http://www.extremetech.com/ext...
(Digital Cinema Initiative) 4k resolution means 4*1024=4096 columns, and generally 2*1080=2160 lines (with a resulting aspect ratio of ~17:9). It has been used for several years in movie projectors.
UHD-1 means 3840x2160 (16:9), which is 4 times the "Full HD" of 1920x1080 (or, as it's often abbreviated, 1080p, with 1080 for the number of lines, and p for progressive, 16:9 ratio implied)
(While there's also UHD-2, which is 4 times UHD-1 at the gigantic 7680x4320.)
Most screens sold as "4k" are in fact only "UHD-1", except some specific ones, generally used for very high-end video editing, now usually advertised as "True 4k" (which includes a larger color gamut, among other things).
There's also an issue that if you run at 4096x2160, 60Hz, 12-bit JPEG2000 colors, the overwhelming majority of HDMI and DisplayPort cables won't be able to carry the signal due to insufficient bandwidth (it would seem that some monitors can use two cables as a workaround).
Except that the NASA page has this picture :
http://www.nasa.gov/sites/defa...
Showing SD, HD, FullHD, and "4k 4096x2160" sizes and "4k is Four Times the resolution of Full HD", which is technically wrong (see my comment below).
I hope they also get some good microphones, and allocate decent audio bandwidth, so space feels less like the technological frontier it was 50 years ago, and so you don't need an interpreter to work out what they're saying.
Yep in between all the marketing dribble its HEVC, Main 10 profile. No vp9, licensed codec. Don't even care if the fees aren't that make, it's a lost battle in the war for a standard codec.
I can't even drink water before it freezes, too cold in Canada.
Obligatory
NASA knows there is a boundary; we can't get into space. Everything NASA produces is "generated", it's virtual reality, nothing is real.
I feel fantastic, and I'm still alive.
Now I can watch "VIDEO FILE" and "EDUCATION FILE" in 4K!
I fear that the power requirements to broadcast a 8Mpx/s signal from Mars towards Earth might be a bit steep?
Harmonic press release (submitted by an AC below) mentions "4k UHD" and "2160p60" (and never 4096x2160), so it's UHD-1, not 4k.
http://harmonicinc.com/news/na...
It's NASA's press release that used a confusing picture... (and the Slashdot summary then re-used the wrong information)