Blu-ray 4K Under Consideration by BDA

[Penton-Man]

Originally Posted by ronjones

By the way I have posted a couple of recent updates on UHD standards on my Blog at Projector Reviews.

Nice summary review regarding UHD video standards moving forward with particular emphasis on B.T.2020, which we have been discussing in the 4K Movie Releases thread on-and-off in a piecemeal fashion for about the year….as well as some of the original research regarding field of view and angular resolution relating to pixel count which came out of NHK ( https://forum.blu-ray.com/showthread...hk#post5922985 )

which ultimately served as a basis to derive some of the parameters of B.T.2020, which you talk about in your piece.


Anyway, on a more esoteric technological note, in the signal format parameters of the ITU-R B.T. 2020 recommendation, there are both non-constant and constant luminance methods specified.

The back-story behind that is that constant luminance and non-constant luminance methods caused BIG debate among the engineers/scientists.

Ultimately, both were included as can be seen in the online pdf document. The actual discussion on the luminance and color difference equations took the longest time to iron out compared to that of all of the other parameters specified.